CN101565208A - Method for preparing manganic manganous oxide nano-material - Google Patents

Method for preparing manganic manganous oxide nano-material Download PDF

Info

Publication number
CN101565208A
CN101565208A CNA2009100516419A CN200910051641A CN101565208A CN 101565208 A CN101565208 A CN 101565208A CN A2009100516419 A CNA2009100516419 A CN A2009100516419A CN 200910051641 A CN200910051641 A CN 200910051641A CN 101565208 A CN101565208 A CN 101565208A
Authority
CN
China
Prior art keywords
aqueous solution
oxide nano
manganous
preparation
manganic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2009100516419A
Other languages
Chinese (zh)
Inventor
桂义才
钱雪峰
吴梦玲
苏晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jiaotong University
Original Assignee
Shanghai Jiaotong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CNA2009100516419A priority Critical patent/CN101565208A/en
Publication of CN101565208A publication Critical patent/CN101565208A/en
Pending legal-status Critical Current

Links

Images

Abstract

The invention provides a method for preparing a manganic manganous oxide nano-material, belonging to the field of nano-magnetic material technology. The method comprises the following steps of preparing a manganese acetate solution and a polyvinylpyrrolidone solution; preparing manganese-contained solid salt, and carrying out washing treatment and drying treatment. The method prepares the manganic manganous oxide nano-material by one-step synthesis, changes the sorts of simple inorganic salt modification agent and the appearance of the outcome simultaneously, is simple and convenient, has feasible operation and high yield, and is safe, environment-protective and convenient for control.

Description

The preparation method of manganic manganous oxide nano-material
Technical field
That the present invention relates to is a kind of preparation method of nano magnetic material technical field, specifically is a kind of preparation method of manganic manganous oxide nano-material.
Background technology
Mn 3O 4Be a kind of important inorganic materials, it of many uses.On electronic industry, it is a raw material of producing soft magnetic ferrite, and soft magnetic ferrite then is widely used as magnetic recording material; On chemical industry, it can be used as multiple catalyst for reaction.In addition, Mn 3O 4Also can be used as the colorant of some paint or coating, contain Mn 3O 4Paint or paint spay-coating on iron and steel, have better corrosion resistance than paint that contains titanium dioxide or ferric oxide or coating.In addition, Mn 3O 4Also can be used as the positive electrode active materials spinel LiMn of preparation battery 2O 4Precursor etc.Mn 3O 4Small-size effect, quantum effect, surface effects, interfacial effect and the macroscopic quantum channel effect of nano-powder because of having nanocrystal will show than body phase material excellent magnetism energy and catalytic activity more.Have at present much about nanometer Mn 3O 4The preparation method, such as hydrothermal method, solvent-thermal method, pyroprocess, sol-gel method, solid phase method, galvanic deposit, vapor phase process etc.
Through the literature search of prior art is found, the 722nd～725 page of Yang Zeheng, Zhang Weixin, Xu Jun, Han Xiaozhao, Chen Minzai " applied chemistry " the 22nd the 7th phase of volume of July in 2005 have delivered and have been entitled as that " the solvent thermal synthesis method prepares Mn 3O 4Nano-powder " in the literary composition, mention in the literary composition: adopting solvent process for thermosynthesizing, is that raw material prepares Mn under lower temperature with potassium permanganate and ethanol 3O 4Nano-powder.In 100 and 160 ℃ prepare respectively 10 with 60nm about Mn 3O 4Nano-powder.In this process, with KMnO 4Be oxygenant, ethanol is as reductive agent, and excess ethanol is simultaneously as solvent.The product pattern that obtains is single, and also has the situation of reuniting, and production cost is higher relatively.
Find by retrieval that again Fan Wugang, high Lian have been delivered the 789th～792 page of the 21st the 4th phase of volume of " Journal of Inorganic Materials " July in 2006 and be entitled as " nanometer Mn in the methyl-sulphoxide medium 3O 4Synthetic " in the literary composition, mention in the literary composition: be raw material with the manganous acetate, solvent-thermal method synthesizes nanometer Mn3O4 particle in the solution of methyl-sulphoxide and water.Owing to used methyl-sulphoxide, this operation has improved production cost, and operator's health is had very big injury.Therefore develop a kind of simple, environmental protection, synthetic method seems highly significant efficiently.Utilize simple inorganic salt as pattern modifier control manganic manganous oxide nano-material pattern at present, especially have special six sufficient shape patterns report is not also arranged.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of preparation method of manganic manganous oxide nano-material is provided, this method steps is simple, have easy and simple to handle, output height, Environmental Safety, the advantage of controllable product shape.
The present invention is achieved by the following technical solutions, the present invention includes following steps:
Step 1, the preparation manganous acetate aqueous solution and the polyvinylpyrrolidone aqueous solution: at first manganous acetate being dissolved in deionized water for stirring formation concentration is the manganous acetate aqueous solution of 0.1mol/L; And then respectively manganous acetate and polyvinylpyrrolidone are dissolved in deionized water for stirring with 300: 1 mol ratio and form the polyvinylpyrrolidone aqueous solution;
Comprise modifier in the described manganous acetate aqueous solution, described modifier is meant that concentration is a kind of aqueous solution in 0.1mol/L sodium sulfate, sodium-chlor, SODIUMNITRATE or the vitriolate of tartar.
The concentration of manganous acetate is 0.4mol/L in the described polyvinylpyrrolidone aqueous solution;
Step 2, the manganous acetate aqueous solution and the polyvinylpyrrolidone aqueous solution mixed with 1: 1 volume ratio be transferred in the autoclave that contains polytetrafluoroethylliner liner after stirring, naturally cooling after reacting 2～24 hours under 140 ℃～200 ℃ environment obtains containing the manganese solid salt;
Step 3 will contain the manganese solid salt and carry out carrying out washing treatment and drying treatment successively, obtain manganic manganous oxide nano-material.
Described carrying out washing treatment is meant: at first will contain manganese solid salt ultra-sonic dispersion in pure water, and adopt the whizzer centrifugation again 3～4 times, each 3～4 minutes; Contain manganese solid salt ultra-sonic dispersion after will separating again in dehydrated alcohol, and adopt whizzer centrifugation 2～3 times, each 3～4 minutes.
Described whizzer centrifugation is meant that the rotating speed of whizzer is 3000～5000rpm.
Oven dry was 6～10 hours during described drying treatment was meant under 60 ℃ of environment.
The present invention prepares manganic manganous oxide nano-material by once synthesizing, and changes the pattern of product in the kind that changes simple inorganic salt modifier; Simultaneously, method of the present invention is easy, and operation is easily gone, the output height, and safety and environmental protection is convenient to control.
Description of drawings
Fig. 1 is the nano wire electron scanning micrograph that embodiment 1 prepares;
Fig. 2 is the nanotube electron scanning micrograph that embodiment 3 prepares;
Fig. 3 is the nanometer rod electron scanning micrograph that embodiment 4 prepares;
Fig. 4 is the nanometer rod electron scanning micrograph that embodiment 6 prepares.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole sodium sulfate is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 180 ℃ reacted 24 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 3 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2 times, each 4 minutes, put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Be illustrated in figure 1 as the nano material electron scanning micrograph that present embodiment is prepared.
Embodiment 2
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole vitriolate of tartar is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 180 ℃ reacted 24 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 3 times, each 4 minutes, put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Embodiment 3
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed the clarification manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 180 ℃ reacted 24 hours.
The 3rd step, containing behind the manganese solid salt naturally cooling of will obtaining, adopt the whizzer centrifugation again 3 times, each 4 minutes with containing manganese solid salt ultra-sonic dispersion in pure water; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 3 times, each 4 minutes, put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Be illustrated in figure 2 as the nano material electron scanning micrograph that present embodiment is prepared.
Embodiment 4
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole SODIUMNITRATE is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 180 ℃ reacted 24 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2 times, each 4 minutes; Put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Be illustrated in figure 3 as the nano material electron scanning micrograph that present embodiment is prepared.
Embodiment 5
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole sodium-chlor is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 180 ℃ reacted 24 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2 times, each 4 minutes; Put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Embodiment 6
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole sodium sulfate is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 140 ℃ reacted 24 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2 times, each 4 minutes; Put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Be illustrated in figure 6 as the nano material electron scanning micrograph that present embodiment is prepared.
Embodiment 7
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole sodium sulfate is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 200 ℃ reacted 24 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2 times, each 4 minutes; Put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.
Embodiment 8
The first step, in 50 milliliters beaker, inject 10 milliliters pure water, the stirring soluble in water of 1 mmole manganous acetate is formed settled solution, 1 mmole sodium sulfate is dissolved in wherein stirring again and obtains the manganous acetate aqueous solution.Get the pure water that 50 ml beakers inject 10 milliliters in addition, with the 4 mmole manganous acetates settled solution that obtains soluble in water, the 0.4g polyvinylpyrrolidone being dissolved in wherein, stirring obtains the polyvinylpyrrolidone aqueous solution again.
Second step, the manganous acetate aqueous solution and polyvinylpyrrolidone aqueous solution stirred to change volume after 30 minutes over to be in 35 milliliters the stainless steel autoclave that contains polytetrafluoroethylliner liner, replenish pure water to still volumetrical 70%～90%, with the still sealing, the high temperature oven of putting into 180 ℃ reacted 2 hours.
The 3rd the step, will obtain contain manganese solid salt naturally cooling after ultra-sonic dispersion in pure water, adopt the whizzer centrifugation again 4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2 times, each 4 minutes; Put into 60 ℃ of baking oven oven dry 10 hours at last, obtain Mn 3O 4Nano material.

Claims (7)

1, a kind of preparation method of manganic manganous oxide nano-material is characterized in that, comprises the steps:
Step 1, at first manganous acetate being dissolved in deionized water for stirring formation concentration is the manganous acetate aqueous solution of 0.1mol/L; And then respectively manganous acetate and polyvinylpyrrolidone are dissolved in deionized water for stirring with 300: 1 mol ratio and form the polyvinylpyrrolidone aqueous solution;
Step 2, the manganous acetate aqueous solution and the polyvinylpyrrolidone aqueous solution mixed with 1: 1 volume ratio be transferred in the autoclave that contains polytetrafluoroethylliner liner after stirring, naturally cooling after reacting 2～24 hours under 140 ℃～200 ℃ environment obtains containing the manganese solid salt;
Step 3 will contain the manganese solid salt and carry out carrying out washing treatment and drying treatment successively, obtain manganic manganous oxide nano-material.
2, the preparation method of manganic manganous oxide nano-material according to claim 1 is characterized in that, comprises modifier in the described manganous acetate aqueous solution.
3, the preparation method of manganic manganous oxide nano-material according to claim 2 is characterized in that, described modifier is meant that concentration is a kind of aqueous solution in sodium sulfate, sodium-chlor, SODIUMNITRATE or the vitriolate of tartar of 0.1mol/L.
4, the preparation method of manganic manganous oxide nano-material according to claim 1 is characterized in that, the concentration of manganous acetate is 0.4mol/L in the described polyvinylpyrrolidone aqueous solution.
5, the preparation method of manganic manganous oxide nano-material according to claim 1 is characterized in that, described carrying out washing treatment is meant: at first will contain manganese solid salt ultra-sonic dispersion in pure water, and adopt the whizzer centrifugation again 3～4 times, each 4 minutes; Contain manganese solid salt ultra-sonic dispersion in dehydrated alcohol after just separating again, and adopt whizzer centrifugation 2～3 times, each 4 minutes.
6, the preparation method of manganic manganous oxide nano-material according to claim 5 is characterized in that, described whizzer centrifugation is meant that the rotating speed of whizzer is 3000～5000rpm.
7, the preparation method of manganic manganous oxide nano-material according to claim 1 is characterized in that, oven dry was 6～10 hours during described drying treatment was meant under 60 ℃ of environment.
CNA2009100516419A 2009-05-21 2009-05-21 Method for preparing manganic manganous oxide nano-material Pending CN101565208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009100516419A CN101565208A (en) 2009-05-21 2009-05-21 Method for preparing manganic manganous oxide nano-material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009100516419A CN101565208A (en) 2009-05-21 2009-05-21 Method for preparing manganic manganous oxide nano-material

Publications (1)

Publication Number Publication Date
CN101565208A true CN101565208A (en) 2009-10-28

Family

ID=41281608

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2009100516419A Pending CN101565208A (en) 2009-05-21 2009-05-21 Method for preparing manganic manganous oxide nano-material

Country Status (1)

Country Link
CN (1) CN101565208A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102040246A (en) * 2010-10-27 2011-05-04 江苏科技大学 Method for synthesizing manganous-manganic oxide nano material at room temperature by using mild path
CN102303910A (en) * 2011-07-26 2012-01-04 陕西师范大学 Method for preparing uniform-spherical trimanganese tetroxide
CN103570072A (en) * 2012-07-27 2014-02-12 比亚迪股份有限公司 Trimanganese tetroxide preparation method and trimanganese tetroxide prepared therethrough
CN104261476A (en) * 2014-09-19 2015-01-07 济南大学 Preparation method of Mn3O4 self-assembly structure
CN110040783A (en) * 2019-05-20 2019-07-23 新乡医学院 Manganic manganous oxide nano-material, preparation method and application

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102040246A (en) * 2010-10-27 2011-05-04 江苏科技大学 Method for synthesizing manganous-manganic oxide nano material at room temperature by using mild path
CN102040246B (en) * 2010-10-27 2013-04-24 江苏科技大学 Method for synthesizing manganous-manganic oxide nano material at room temperature by using mild path
CN102303910A (en) * 2011-07-26 2012-01-04 陕西师范大学 Method for preparing uniform-spherical trimanganese tetroxide
CN102303910B (en) * 2011-07-26 2014-06-25 陕西师范大学 Method for preparing uniform-spherical trimanganese tetroxide
CN103570072A (en) * 2012-07-27 2014-02-12 比亚迪股份有限公司 Trimanganese tetroxide preparation method and trimanganese tetroxide prepared therethrough
CN104261476A (en) * 2014-09-19 2015-01-07 济南大学 Preparation method of Mn3O4 self-assembly structure
CN104261476B (en) * 2014-09-19 2016-01-06 济南大学 A kind of Mn 3o 4the preparation method of self-assembled structures
CN110040783A (en) * 2019-05-20 2019-07-23 新乡医学院 Manganic manganous oxide nano-material, preparation method and application
CN110040783B (en) * 2019-05-20 2021-09-10 新乡医学院 Manganous-manganic oxide nano material, preparation method and application thereof

Similar Documents

Publication Publication Date Title
CN101318700B (en) Bismuth vanadate powder and preparation method thereof
CN101234750B (en) Method of preparing superfine micro-particle and nano granule
CN102249395B (en) Water ozonization treatment method by taking cerium oxide nanomaterial as catalyst
CN109718775A (en) A kind of CuCo2O4The preparation method of nano spinel catalyst
CN101565208A (en) Method for preparing manganic manganous oxide nano-material
WO2019237452A1 (en) Method for preparing two-dimensional sheet-shaped cu-mof material
CN111036249A (en) FexP/Mn0.3Cd0.7S composite photocatalyst and preparation method and application thereof
CN107262113A (en) Core shell structure NiO/Au/Fe2O3The preparation of nano composite material
CN106517360B (en) A kind of particle self assembly cobaltosic oxide micron spherical powder and preparation method thereof
CN1254337C (en) Preparation method of nanometer sized superfine ferro nickel alloy powder
CN102060333B (en) Method for preparing manganese oxide nano-material
XU et al. Fabrication of Z-scheme BiVO4/GO/gC 3N4 Photocatalyst with Efficient Visble-Light Photocatalytic Performance
CN103553141A (en) Method for synthesizing ferrous acid manganese nanowire material through ionic liquid assisted microwave radiation method
CN109516490B (en) Preparation method of cerium dioxide nano particles with controllable structures
CN108262051B (en) Method for synthesizing cerium dioxide-bismuthyl carbonate nano composite by mechanical ball milling heat treatment two-step method
CN106541145A (en) A kind of graphene oxide magnetic metal nanowire composite and preparation method thereof
CN106082298A (en) A kind of preparation method of cerium bismuth composite oxide nano-bar material
CN105540682B (en) It is a kind of that the method that ferroso-ferric oxide loads nitrogen-doped graphene composite is prepared by source of iron of urea iron
CN112121797A (en) Magnetic TiO2Preparation method of graphene oxide composite material
CN109133192B (en) A kind of Transition-metal dichalcogenide material and preparation method thereof
CN111167512A (en) Novel photo-thermal catalyst for synthesizing methanol by oxidizing methane and preparation method thereof
Fouad et al. Microwave irradiation assisted growth of Cu, Ni, Co metals and/or oxides nanoclusters and their catalytic performance
CN115999612A (en) Hammer coral Bi 2 S 3 /Ni/g-C 3 N 4 Preparation method of ternary composite material and application of composite material
CN108298600A (en) A kind of environment-friendly preparation method thereof of two dimension hydroxide nano piece
CN102380421B (en) C12-to-C18 alkyl phosphonic acid protection magnetic ferroferric oxide nanocrystalline as well as preparation method and application thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20091028