CN109794256A - A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles - Google Patents

A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles Download PDF

Info

Publication number
CN109794256A
CN109794256A CN201910155257.7A CN201910155257A CN109794256A CN 109794256 A CN109794256 A CN 109794256A CN 201910155257 A CN201910155257 A CN 201910155257A CN 109794256 A CN109794256 A CN 109794256A
Authority
CN
China
Prior art keywords
bivo
coo
composite material
preparation
film
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
CN201910155257.7A
Other languages
Chinese (zh)
Inventor
刘婷婷
王其召
黄静伟
王磊
佘厚德
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.)
Northwest Normal University
Original Assignee
Northwest Normal 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 Northwest Normal University filed Critical Northwest Normal University
Priority to CN201910155257.7A priority Critical patent/CN109794256A/en
Publication of CN109794256A publication Critical patent/CN109794256A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/133—Renewable energy sources, e.g. sunlight

Abstract

The present invention provides a kind of PEC CoO of good performancex/BiVO4The preparation of composite material is by BiVO4Film is soaked in CoCl2In solution, make Co2+Reach adsorption equilibrium；It will be adsorbed with Co again2+BiVO4Film is placed in drying in baking oven and is placed in Muffle furnace, through high-temperature calcination, by CoOxNanoparticle is successfully loaded BiVO4Membrane structure, so that N-shaped BiVO4Semiconductor is configured to p-n heterojunction, the CoO of formationx/BiVO4Composite material has worm shape structure, this worm shape structure restrained effectively the compound of photo-generated carrier, accelerate the transmission rate of electrons and holes, therefore with excellent PEC activity, it is used for evolving hydrogen reaction using it as photo cathode material, shows excellent optical electro-chemistry and decomposes aqueous energy.

Description

A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles
Technical field
The present invention relates to a kind of BiVO4Based composites more particularly to a kind of load C oOxThe BiVO of nanoparticle4It is compound Material (CoOx/BiVO4) preparation, mainly as photo cathode material for optical electro-chemistry water decomposition produce hydrogen in.
Background technique
With the burning of fossil fuel, the discharge of vehicle exhaust causes serious greenhouse effects and atmosphere pollution, is badly in need of A kind of use cleaned sustainable new energy and replace fossil fuel is developed, optical electro-chemistry is decomposed aquatic products hydrogen and be can be realized the sun Sustainable H can be converted into2, the photo cathode material that optical electro-chemistry is decomposed in water generally uses oxide, because they can Stability is kept under the long-time corrosion of electrolyte.Most common oxide has TiO2、Fe2O3、ZnO、In2O3Deng monoclinic phase BiVO4It is compared with other optical anode materials, has the advantages that band gap is small, visible light can be absorbed, but since its charge moves Shifting rate is low, and the slow water oxidation kinetics in water decomposition reaction restricts BiVO4Application.
Summary of the invention
The purpose of the present invention is for BiVO in the prior art4Material there are the problem of, it is of good performance to provide a kind of PEC Load C oOxThe preparation method of the pucherite composite material of nanoparticle.
One, CoOx/BiVO4The preparation of composite material
It is by BiVO4Film is soaked in CoCl2In solution, make Co2+Reach adsorption equilibrium；It will be adsorbed with Co again2+BiVO4Film It is placed in drying in baking oven to be placed in Muffle furnace, through high-temperature calcination, obtains load C oOxBiVO4Film CoOx/BiVO4。
The CoCl2Solution concentration between 0.01mol/L ~ 1.5mmol/L.
The BiVO4Film is in CoCl2Soaking time in solution is 10 ~ 12h.
The drying dry 25 ~ 30min at 50 DEG C ~ 60 DEG C.
The high-temperature calcination temperature, which is 450 DEG C ~ 500 DEG C, (can not form Co lower than this temperature2O3、Co3O4, it is higher than this F can be adulterated SnO by temperature2Electro-conductive glass is burnt out.), calcination time is 4 ~ 5 hours.
CoOx/BiVO4In, CoOxIt is Co2O3、Co3O4Mixture.CoOxLoad capacity be 10% ~ 15%.
Two, CoOx/BiVO4The characterization of composite material
Fig. 1 is BiVO4SEM figure and CoOx/BiVO4SEM figure.As seen from Figure 1, BiVO4For worm shape structure, have equal Even cellular structure.One layer of porous BiVO is formed on FTO electro-conductive glass4Nano thin-film.By CoOx/BiVO4SEM figure see Out, the composite material of synthesis does not change BiVO4Worm shape structure, in BiVO4Film surface forms one layer of uniform CoOxFilm.
Fig. 2 is BiVO4TEM figure and CoOx/BiVO4TEM figure, found out by TEM, pure BiVO4Form porous knot Structure, and its smooth of the edge, compound CoOx/BiVO4Occur some small particles around film, this is the CoO of loadx Particulate matter.
Fig. 3 is BiVO4、CoOx/BiVO4XRD diagram.BiVO in figure4For monoclinic phase BiVO4, CoOx/BiVO4Laminated film Peak and BiVO4The peak of film is corresponding, CoO does not occurxPeak, this may be because load CoOxAmount it is fewer Reason.CoOx/BiVO4Peak intensity and BiVO4Compared to not weakening, the CoO of load is illustratedxAmount is seldom, without influence on BiVO4Peak intensity.
Three, BiVO4、CoOx/BiVO4The photoelectrochemical behaviour of composite material is tested
The optical property of all photo cathodes is assessed by test UV Diffuse Reflectance Spectroscopy.Fig. 4 is respectively BiVO4、CoOx/ BiVO4The UV Diffuse Reflectance Spectroscopy (a) and forbidden bandwidth figure (b) of electrode.It can see from Fig. 4 a, BiVO4Absorption edge exist 510nm or so, corresponding band gap width are 2.37eV.When having loaded CoOxAfter nano particle, CoOx/BiVO4ABSORPTION EDGE exist 530nm or so, corresponding band gap width are 2.32eV, it can be seen that red shift has occurred in absorption edge, illustrates CoOxNano particle BiVO has been widened in load4ABSORPTION EDGE.CoOx/BiVO4Band gap width reduce so that compound CoOx/BiVO4It can absorb more Low energy, improves BiVO4To the utilization rate of sunlight.
Fig. 5 is BiVO4,CoOx/BiVO4Not special Schottky figure.From figure 5 it can be seen that BiVO4Not special Schottky figure Slope be positive, illustrate BiVO4For n-type semiconductor, compare BiVO4、CoOx/BiVO4Not special Schottky figure slope size, It can be seen that CoOx/BiVO4The slope of composite material is smaller, illustrates to have loaded CoOxAfter nano particle, the dense of carrier is increased Degree.
Fig. 6 has recorded pure BiVO4, CoOx/BiVO4LSV curve.Under light conditions, pure BiVO4It is simulated in AM1.5G Density of photocurrent under sunlight irradiation in 1.23V vs.RHE is 1.2mA cm-2, composite material CoOx/BiVO4Photoelectricity Current density reaches 2.8mA cm in 1.23 V vs.RHE under the irradiation of AM1.5G simulated solar irradiation-2, with pure BiVO4(1.2mA cm-2) compared to increasing 2.3 times.By CoOxLoad to BiVO4Surface on, make ABSORPTION EDGE red shift, this has widened BiVO4To the sun The light absorption range of spectrum, improves BiVO4It is heterogeneous that p-n is formd to the composite material of the utilization efficiency of sunlight, and synthesis Knot, improves the separative efficiency of electrons and holes.CoOxIt is a kind of water oxidation promoters, hole can be quickly passed to electricity by it In electrolyte solution, oxidation reaction occurs.Fig. 6 shows the LSV curve under no illumination, pure BiVO4And CoOx/BiVO4Photoelectricity The take-off potential of anode material is respectively 2.35V and 2.15V at 1.23 V vs.RHE, and the take-off potential of reaction is moved to cathode 0.2V is moved, composite material reduces the overpotential of reaction, improves BiVO4Electrolysis water oxidation efficiency.
Fig. 7 is BiVO4And CoOx/BiVO4Density of photocurrent figure.It can be seen that pure BiVO4AM1.5G simulation too Under sunlight irradiation, the density of photocurrent at 1.23 V vs.RHE is 1mA cm-2, CoOx/BiVO4The photoelectric current of composite material Density reaches 2.8mA cm at 1.23 V vs.RHE under the simulated solar irradiation irradiation of AM1.5G-2, composite material is pure BiVO4Photoelectric current (1.2mA cm-2) 2.2 times.Illustrate that composite material improves BiVO4Optical electro-chemistry water dispersible energy.
Fig. 8 is BiVO4And CoOx/BiVO4Electrochemical impedance spectrogram.Fig. 8 a, b are the simulated solar in AM1.5G respectively Light irradiation is lower and without the electrochemical impedance spectrogram under light irradiation, and the impedance spectra in the case where there is light irradiation can be seen that composite material CoOx/BiVO4Radian than pure BiVO4Radian want small, equally no light irradiation under composite material arc diameter Than pure BiVO4Arc diameter want small, illustrate load C oOxAfter accelerate BiVO4Charge transport rate.Reduce current-carrying The recombination rate of son.
In conclusion the present invention is by BiVO4Nano thin-film is put into certain density CoCl2In solution, so that Co2+Ion exists BiVO4Surface reaches adsorption equilibrium.After being calcined in Muffle furnace, by CoOxNanoparticle is successfully loaded BiVO4Film knot Structure, so that N-shaped BiVO4Semiconductor is configured to p-n heterojunction, the CoO of formationx/BiVO4Composite material has worm shape structure, this Kind worm shape structure restrained effectively the compound of photo-generated carrier, accelerate the transmission rate of electrons and holes, therefore have excellent Different PEC activity, evolving hydrogen reaction is used for using it as photo cathode material, is shown excellent optical electro-chemistry and is decomposed aqueous energy.
Detailed description of the invention
Fig. 1 is BiVO4SEM figure and CoOx/BiVO4SEM figure.
Fig. 2 is BiVO4TEM figure and CoOx/BiVO4TEM figure.
Fig. 3 is BiVO4、CoOx/BiVO4XRD diagram.
Fig. 4 is respectively BiVO4、CoOx/BiVO4The UV Diffuse Reflectance Spectroscopy (a) and forbidden bandwidth figure (b) of electrode.
Fig. 5 is BiVO4,CoOx/BiVO4Not special Schottky figure.
Fig. 6 has recorded pure BiVO4, CoOx/BiVO4LSV curve.
Fig. 7 is BiVO4And CoOx/BiVO4Density of photocurrent figure.
Fig. 8 is BiVO4And CoOx/BiVO4Electrochemical impedance spectrogram.
Specific embodiment
Below by specific implementation method to BiVO of the present invention4、CoOx/BiVO4The preparation of composite material and performance are made into one Walk explanation.
Embodiment 1
(1) preparation of BiOI film
BiOI film is prepared using cyclic voltammetry electro-deposition in three-electrode system.Platinum plate electrode is used as to electrode, Ag/ AgCl electrode (uses dehydrated alcohol, acetone, isopropanol, two using preceding as working electrode as reference electrode, FTO electro-conductive glass Secondary distilled water is successively cleaned by ultrasonic), voltage is set as 0V ~ -0.13V, sweep speed 5mV/s, scanning circle when electro-deposition Number is 10 circles, after the completion of electro-deposition, is dried with distilled water flushing and in air.The electrolyte that electro-deposition prepares BiOI film is matched Process processed is as follows:
A. it is poured into the beaker of 100ml with the distilled water that graduated cylinder measures 50ml；Then 3.3 ~ 3.4gKI drug is weighed, it is fast in magneton Under speed stirring, drug is added in distilled water, transparent clear solution is formed.
B. nitric acid (the HNO of 1mol/L is used3) adjust KI solution pH value be 1.5 ~ 1.7；
C. 0.9 ~ 1g, five water bismuth nitrate (Bi (NO is weighed3)3•5H2O it) is added in KI solution, after stirring 15min, solution colour is gradually Become orange red from blackish green；
D. 0.4 ~ 0.5g 1,4-benzoquinone (C is weighed6H4O2), be added in 20mL dehydrated alcohol, stirring 15min obtain brown to benzene Quinone solution；
E. the ethanol solution of 1,4-benzoquinone is added dropwise to dropwise in the orange-red solution in (c), then it is vigorously agitated again 10 ~ 30min,.
(2) BiVO4The preparation of film
A. by 0.1 ~ 0.15g vanadyl acetylacetonate (VO (acac)2), it is added in the dimethyl sulfoxide (DMSO) of 2.5 ~ 3ml and stirs 15min is mixed, the dimethyl sulphoxide solution of vanadyl acetylacetonate is obtained；
B. the dimethyl sulphoxide solution that the vanadyl acetylacetonate of 100 μ L is measured with micro syringe drips on BiOI film；
C. there is the film in vanadium source to be put in Muffle furnace drop, 4 ~ 5h is calcined at 450 ~ 500 DEG C；Temperature is cooled to room temperature, will be thin Film takes out；
D. by the BiVO of formation4Film immerses a period of time in 1mo/LNaOH solution, removes Bi2O3、V2O5Equal impurity, work as color After becoming faint yellow completely, BiVO is taken out with tweezers4Film, and the lye of attachment removal is removed wash with distilled water.
(3) CoOx/BiVO4The preparation of composite material
Take a certain amount of CoCl2·6H2O is added in distilled water, is ultrasonically treated 30min, forms transparent clear CoCl2Solution (0.05 ~ 1.5mmol/L)；By BiVO4Film immerses CoCl212 hours, make Co in solution2+Ion is in BiVO4Surface reaches suction Attached balance, then be placed in Muffle furnace, 450 ~ 500 DEG C DEG C (2 DEG C/min of heating rate) are warming up to, 5 hours is calcined, prepares CoOx/BiVO4Film.CoOx/BiVO4The load capacity of CoOx is 10% ~ 15% in composite material.
(4) CoOx/BiVO4Performance test
By CoOx/BiVO4Composite material is used for optical electro-chemistry water decomposition reaction test: CoO as photo cathodex/BiVO4It is compound The density of photocurrent of material reaches 2.5 ~ 2.8mAcm at 1.23Vvs.RHE under the simulated solar irradiation irradiation of AM1.5G-2。

Claims (7)

1. a kind of load C oOxThe preparation method of the pucherite composite material of nanoparticle is by BiVO4Film is soaked in CoCl2 In solution, make Co2+Reach adsorption equilibrium；It will be adsorbed with Co again2+BiVO4Film is placed in drying in baking oven and is placed on Muffle furnace In, through high-temperature calcination, obtain load C oOxBiVO4Film CoOx/BiVO4。
2. a kind of load C oO as described in claim 1xThe preparation method of the pucherite composite material of nanoparticle, feature exist In: the CoCl2Solution concentration between 0.01mol/L ~ 0.5mmol/L.
3. a kind of load C oO as described in claim 1xThe preparation method of the pucherite composite material of nanoparticle, feature exist In: the BiVO4Film is in CoCl2Soaking time in solution is 10 ~ 12h.
4. a kind of load C oO as described in claim 1xThe preparation method of the pucherite composite material of nanoparticle, feature exist In: the drying dry 25 ~ 30min at 50 DEG C ~ 60 DEG C.
5. a kind of load C oO as described in claim 1xThe preparation method of the pucherite composite material of nanoparticle, feature exist In: high-temperature calcination is calcined 4 ~ 5 hours at 450 DEG C ~ 500 DEG C.
6. the load C oO of method preparation as described in claim 1xThe pucherite composite material of nanoparticle, it is characterised in that: CoOxLoad capacity be 10% ~ 15%.
7. the load C oO of method preparation as described in claim 1xThe pucherite composite material of nanoparticle is as photo cathode material Material produces in hydrogen for optical electro-chemistry water decomposition.
CN201910155257.7A 2019-03-01 2019-03-01 A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles Pending CN109794256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910155257.7A CN109794256A (en) 2019-03-01 2019-03-01 A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910155257.7A CN109794256A (en) 2019-03-01 2019-03-01 A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles

Publications (1)

Publication Number Publication Date
CN109794256A true CN109794256A (en) 2019-05-24

Family

ID=66562368

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910155257.7A Pending CN109794256A (en) 2019-03-01 2019-03-01 A kind of preparation and application of the pucherite composite material loading cobalt oxide nanoparticles

Country Status (1)

Country Link
CN (1) CN109794256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110227478A (en) * 2019-07-10 2019-09-13 西北师范大学 Cobalt/cobalt oxide/pucherite composite material method is prepared by spin coating calcining

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1806915A (en) * 2006-02-23 2006-07-26 上海交通大学 Composite bismuth vanadium photocatalyst supported by cobalt oxide and preparation method thereof
CN101775615A (en) * 2010-01-20 2010-07-14 南京大学 BiVO4 nano photoelectrode and application thereof in hydrogen production from water splitting
CN108611653A (en) * 2018-04-13 2018-10-02 西北师范大学 A kind of pucherite composite material of carried magnetic nano particle and its preparation and application
CN108842169A (en) * 2018-07-02 2018-11-20 西北师范大学 A kind of metal oxide-loaded pucherite composite material and its preparation and application

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1806915A (en) * 2006-02-23 2006-07-26 上海交通大学 Composite bismuth vanadium photocatalyst supported by cobalt oxide and preparation method thereof
CN101775615A (en) * 2010-01-20 2010-07-14 南京大学 BiVO4 nano photoelectrode and application thereof in hydrogen production from water splitting
CN108611653A (en) * 2018-04-13 2018-10-02 西北师范大学 A kind of pucherite composite material of carried magnetic nano particle and its preparation and application
CN108842169A (en) * 2018-07-02 2018-11-20 西北师范大学 A kind of metal oxide-loaded pucherite composite material and its preparation and application

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ATHANASIA PETALA ET AL.: "Synthesis and characterization of CoOx /BiVO4 photocatalysts for the degradation of propyl paraben", 《JOURNAL OF HAZARDOUS MATERIALS》 *
XIAOXIA CHANG ET AL.: "Enhanced Surface Reaction Kinetics and Charge Separation of p−n Heterojunction Co3O4/BiVO4 Photoanodes", 《J. AM. CHEM. SOC.》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110227478A (en) * 2019-07-10 2019-09-13 西北师范大学 Cobalt/cobalt oxide/pucherite composite material method is prepared by spin coating calcining

Similar Documents

Publication Publication Date Title
Zhang et al. Surface plasmon resonance enhanced direct Z-scheme TiO 2/ZnTe/Au nanocorncob heterojunctions for efficient photocatalytic overall water splitting
Cao et al. Trace-level phosphorus and sodium co-doping of g-C3N4 for enhanced photocatalytic H2 production
Zhen et al. The role of a metallic copper interlayer during visible photocatalytic hydrogen generation over a Cu/Cu 2 O/Cu/TiO 2 catalyst
Zhang et al. Accelerated charge transfer via a nickel tungstate modulated cadmium sulfide p–n heterojunction for photocatalytic hydrogen evolution
Xu et al. Surface states engineering carbon dots as multi-band light active sensitizers for ZnO nanowire array photoanode to boost solar water splitting
CN108579765B (en) Preparation of copper sulfide/bismuth vanadate double-layer film composite material and application of copper sulfide/bismuth vanadate double-layer film composite material as photoelectric anode
CN108842169A (en) A kind of metal oxide-loaded pucherite composite material and its preparation and application
CN108611653B (en) Magnetic nanoparticle-loaded bismuth vanadate composite material and preparation and application thereof
Chen et al. A solar responsive cubic nanosized CuS/Cu2O/Cu photocathode with enhanced photoelectrochemical activity
CN110227478A (en) Cobalt/cobalt oxide/pucherite composite material method is prepared by spin coating calcining
Hong et al. Preparation and enhanced photoelectrochemical performance of selenite-sensitized zinc oxide core/shell composite structure
Lei et al. Hydrothermal synthesis of CdS nanorods anchored on α-Fe2O3 nanotube arrays with enhanced visible-light-driven photocatalytic properties
CN109876867A (en) A kind of preparation method of bimetallic-organic backbone/pucherite composite photoelectric anode material
He et al. NiFe layered double hydroxide/BiVO4 photoanode based dual-photoelectrode photocatalytic fuel cell for enhancing degradation of azo dye and electricity generation
CN107761127A (en) A kind of preparation method for the nanoporous pucherite analysis oxygen electrode that polyacid and phthalocyanine are modified jointly
Singh et al. ZnSe quantum dots sensitized electrospun ZnO nanofibers as an efficient photoanode for improved performance of QDSSC
CN108193219B (en) Phosphorized copper modified titanic oxide optoelectronic pole and preparation method thereof and the application in photoelectrocatalysis decomposition water
CN106887336A (en) TiO2/BiVO4The preparation method of nano-array optoelectronic pole
Xu et al. ZnSe/CdS/CdSe triple-sensitized ZnO nanowire arrays for multi-bandgap photoelectrochemical hydrogen generation
CN108866563A (en) A kind of pucherite film photo cathode, preparation method and the purposes of the modification of boronation cobalt
Oladipo et al. In2S3/AgIO3 photoanode coupled I−/I3− cyclic redox system for solar-electrocatalytic recovery of H2 and S from toxic H2S
Sun et al. High-efficiency photoelectrochemical hydrogen generation enabled by p-type semiconductor nanoparticle-decorated n-type nanotube arrays
CN107393720A (en) Pomelo peel derives porous carbon and is used for preparation method of the DSSC to electrode
CN109913896A (en) A kind of preparation and application of the pucherite composite material of supported bi-metallic oxide nano-particles
Wu et al. Morphology and properties of NiO electrodes for p-DSSCs based on hydrothermal method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190524

RJ01 Rejection of invention patent application after publication