CN104361999B - Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof - Google Patents

Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof Download PDF

Info

Publication number
CN104361999B
CN104361999B CN201410626056.8A CN201410626056A CN104361999B CN 104361999 B CN104361999 B CN 104361999B CN 201410626056 A CN201410626056 A CN 201410626056A CN 104361999 B CN104361999 B CN 104361999B
Authority
CN
China
Prior art keywords
preparation
cnt
nickel
mangaic
application
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.)
Expired - Fee Related
Application number
CN201410626056.8A
Other languages
Chinese (zh)
Other versions
CN104361999A (en
Inventor
张小俊
南红红
马文勤
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.)
Anhui Normal University
Original Assignee
Anhui 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 Anhui Normal University filed Critical Anhui Normal University
Priority to CN201410626056.8A priority Critical patent/CN104361999B/en
Publication of CN104361999A publication Critical patent/CN104361999A/en
Application granted granted Critical
Publication of CN104361999B publication Critical patent/CN104361999B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors

Abstract

The invention discloses carbon nano-tube @ nickel manganese core-shell heterostructure material, and a preparation method and application thereof. The preparation method includes: in a closed high-temperature high-pressure reactor, using secondary distillate as reaction solvent, adding nickel chloride and potassium permanganate, mixing them well, and generating a high-pressure environment through a heating reaction system to prepare the material. Compared with the prior art, the carbon nano-tube @ nickel manganese core-shell heterostructure material and the preparation method and application thereof have the advantages that products of the preparation method are high in purity, good in dispersity, good in crystal shape and well controllable, production cost is low, and reproducibility is good; after used to modify a copper sheet, electrode material for a supercapacitor is directly made, good cycling stability, high specific capacitance and high energy density and power density are achieved, and the material has potential value of application in energy storage.

Description

A kind of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, its preparation method and application
Technical field
The invention belongs to technical field of nano material, and in particular to a kind of CNT@mangaic acids nickel nucleocapsid heterojunction structure material Material, preparation method and applications.
Background technology
The development advanced by leaps and bounds with science and technology and the update of electronic product, electrode material for super capacitor Research has caused the great interest of researchers.At present, traditional electrode material for super capacitor mainly has following a few classes: Material with carbon element class electrode material, conducting polymer species electrode material, metal oxide-type electrode material.However, in actual applications, It has been found that more or less all there is respective defect in these traditional electrode materials, such as:Active area is little, poorly conductive, electricity Capacity is low, and circulation time is short, and energy density and power density are little, due to the presence of these defects, it is difficult to meet higher in reality Application demand.
The content of the invention
To solve above-mentioned technical problem, the present invention provide a kind of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material and its Preparation method.
Present invention also offers a kind of application of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, in ultracapacitor Upper application.
A kind of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material that the present invention is provided, with CNT as skeleton, at it Outside cladding lamellar mangaic acid nickel nano material, forms core-shell nano dissimilar materials.
A kind of preparation method of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material that the present invention is provided, including following step Suddenly:
A, by CNT after nitric acid reflow treatment, it is neutral to be washed to PH with second distillation, stands a period of time, The supernatant, decompression sucking filtration, drying, you can obtain pure CNT are poured out after all precipitations;
B, the CNT of above-mentioned process and redistilled water are mixed, stirring obtains mixed solution;
C, Nickel dichloride., potassium permanganate are sequentially added above-mentioned mixed solution, stirring obtains mixing homogeneous solution, Jin Erzhuan In moving on to reactor, reactor is closed, and at 80-120 DEG C 4-8h is reacted, and is cooled to room temperature, and centrifugation, cleaning are obtained carbon and receive Mitron@mangaic acid nickel nucleocapsid heterogeneous structure materials.
Mass concentration >=60% of nitric acid used in step a;
Concentration of the CNT in redistilled water is 0.3-0.8g/L in step b.
Nickel dichloride. concentration >=0.02mol L in mixed solution in step c-1, potassium permanganate in mixed solution concentration >= 0.05mol L-1, the volume >=15mL of redistilled water.
Stirring means are in step b and c:Using magnetic stirrer, rotating speed is >=2000r/s, mixing time >=1h.
The application of a kind of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material that the present invention is provided, as ultracapacitor Electrode material application.
The method for preparing CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials that the present invention is provided, is in closed high temperature In autoclave, using redistilled water as reaction dissolvent, Nickel dichloride., potassium permanganate mix homogeneously are added, by heating Reaction system, produces an environment under high pressure and prepares a kind of effective ways of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials. Compare with prior art, preparation method product purity height of the present invention, good dispersion, good crystalline and controllable, low production cost, weight Existing property is good.Prepared CNT@mangaic acid nickel nucleocapsids heterogeneous structure material is modified on copper sheet, can be directly as super electricity The electrode material of container, realizes good cyclical stability, big concrete electric capacity, high energy density and power density, and And flexible Asymmetric Supercapacitor is assembled into stannic oxide/graphene nano material, and voltage range is further increased, improve Energy density and power density, have potential using value in terms of energy stores.
Description of the drawings
Fig. 1 is the electron scanning micrograph of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 1 (SEM);
Fig. 2 is the X-ray diffraction photo of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 1 (XRD);
Fig. 3 is the cyclic voltammetry curve (CV) of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 1;
Fig. 4 is the charging and discharging curve of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 1;
Fig. 5 is the impedance plot of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 1;
Fig. 6 is the electron scanning micrograph of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 2 (SEM);
Fig. 7 is the electron scanning micrograph of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 3 (SEM);
Fig. 8 is the electron scanning micrograph of CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials prepared by embodiment 4 (SEM)。
Specific embodiment
Embodiment 1
A kind of preparation method of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, comprises the following steps:
A, by CNT by the nitric acid reflow treatment that mass concentration is 60%, being then washed to PH with second distillation is Neutrality, then stands a period of time, and the supernatant is poured out after all precipitations, then carries out decompression sucking filtration, drying, you can obtain pure Net CNT;
The mixing of b, the 0.01g CNTs for accurately weighing above-mentioned process and 20ml redistilled waters, turns in magnetic stirring apparatuss Speed stirs to form the homogeneous solution of mixing to carry out magnetic force 1h under 3000r/s;
C, 0.5mmol Nickel dichloride .s, 1mmol potassium permanganate are sequentially added above-mentioned mix homogeneously, stirring 2h obtains mixed liquor, In being transferred to reactor, reactor is closed, and at 100 DEG C 6h is reacted, and is cooled to room temperature, and centrifugation, cleaning are obtained carbon nanometer Pipe@mangaic acid nickel nucleocapsid heterogeneous structural nano array materials.
A kind of application of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, as the electrode material of ultracapacitor Using.
The pattern of made CNT@mangaic acid nickel nucleocapsid heterogeneous structure materials is as shown in figure 1, the heterojunction structure composite wood Material is grown in the surface of CNT, forms core-shell nano dissimilar materials.
Take the M KOH solutions of 10mL 6 to be put in electrolysis bath as electrolyte solution, the carbon nanometer that will be prepared in embodiment 1 Pipe, the modification of mangaic acid nickel nucleocapsid heterogeneous structural nano composite, as working electrode, are sweeping speed for 5mV s on copper sheet-1When survey Cyclic voltammetry curve, is then sweeping speed for 10mV s-1When survey cyclic voltammetry curve, the like obtain sweeping speed for 20mV s-1、 50mV s-1、100mV s-1, from the CV figures for obtaining as can be seen that with the increase voltage linear relation for sweeping speed, cyclic voltammetric Figure is as shown in Figure 3.
Take the M KaOH solution of 10mL 6 to be put in electrolysis bath as electrolyte solution, the carbon nanometer that will be prepared in embodiment 1 Pipe@mangaic acid nickel nucleocapsids heterogeneous structure material is modified on copper sheet as working electrode, in 1A g-1When obtain charging and discharging curve, 2A g-1When obtain charging and discharging curve, in 5A g-1When obtain charging and discharging curve, in 10A g-1When obtain charging and discharging curve, in 20A g-1When obtain charging and discharging curve, can draw CNT mangaic acid nickel nucleocapsid heterogeneous structure material conduct from charging and discharging curve Fig. 4 It is very big that electrode compares other materials capacity, is 1A g by calculating in electric current density-1When, maximum concrete electric capacity is 1119 F g-1
Embodiment 2
A kind of preparation method of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, comprises the following steps:
A, by CNT by the nitric acid reflow treatment that mass concentration is 60%, being then washed to PH with second distillation is Neutrality, then stands a period of time, and the supernatant is poured out after all precipitations, then carries out decompression sucking filtration, drying, you can obtain pure Net CNT;
The mixing of b, the 0.008g CNTs for accurately weighing above-mentioned process and 20ml redistilled waters, turns in magnetic stirring apparatuss Speed stirs to form the homogeneous solution of mixing to carry out magnetic force 1h under 3000r;
C, 0.6mmol Nickel dichloride .s, 1.5mmol potassium permanganate are sequentially added above-mentioned mix homogeneously, stirring 2h is mixed Liquid, in being transferred to reactor, reactor is closed, and at 100 DEG C 4h is reacted, and is cooled to room temperature, and centrifugation, cleaning are obtained carbon and receive Mitron@mangaic acid nickel nucleocapsid heterogeneous structural nano array materials.
A kind of application of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, as the electrode material of ultracapacitor Using.
Embodiment 3
A kind of preparation method of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, comprises the following steps:
A, by CNT by nitric acid reflow treatment, it is neutral to be then washed to PH with second distillation, then stands one The section time, the supernatant is poured out after all precipitations, then carry out decompression sucking filtration, drying, you can obtain pure CNT;
The mixing of b, the 0.015g CNTs for accurately weighing above-mentioned process and 20ml redistilled waters, turns in magnetic stirring apparatuss Speed stirs to form the homogeneous solution of mixing to carry out magnetic force 1h under 3000r/s;
C, 0.8mmol Nickel dichloride .s, 2mmol potassium permanganate are sequentially added above-mentioned mix homogeneously, stirring 2h obtains mixed liquor, In being transferred to reactor, reactor is closed, and at 80 DEG C 6h is reacted, and is cooled to room temperature, and centrifugation, cleaning are obtained CNT@ Mangaic acid nickel nucleocapsid heterogeneous structural nano array material.
A kind of application of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, as the electrode material of ultracapacitor Using.
Embodiment 4
A kind of preparation method of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, comprises the following steps:
A, by CNT by nitric acid reflow treatment, it is neutral to be then washed to PH with second distillation, then stands one The section time, the supernatant is poured out after all precipitations, then carry out decompression sucking filtration, drying, you can obtain pure CNT;
The mixing of b, the 0.01g CNTs for accurately weighing above-mentioned process and 20ml redistilled waters, turns in magnetic stirring apparatuss Speed stirs to form the homogeneous solution of mixing to carry out magnetic force 1h under 3000r/s;
C, 1mmol Nickel dichloride .s, 1mmol potassium permanganate are sequentially added above-mentioned mix homogeneously, stirring 2h obtains mixed liquor, turns In moving on to reactor, reactor is closed, and at 100 DEG C 6h is reacted, and is cooled to room temperature, and centrifugation, cleaning are obtained CNT@ Mangaic acid nickel nucleocapsid heterogeneous structure material.
A kind of application of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, as the electrode material of ultracapacitor Using.

Claims (7)

1. a kind of preparation method of CNT@mangaic acids nickel nucleocapsid heterogeneous structure material, it is characterised in that comprise the following steps:
A, by CNT after nitric acid reflow treatment, it is neutral to be washed to PH with second distillation, stands a period of time, treats complete The supernatant, decompression sucking filtration, drying, you can obtain pure CNT are poured out after portion's precipitation;
B, the CNT of above-mentioned process and redistilled water are mixed, stirring obtains mixed solution;
C, Nickel dichloride., potassium permanganate are sequentially added above-mentioned mixed solution, stirring obtains mixing homogeneous solution, and then shifts To in reactor, reactor is closed, and at 80-120 DEG C 4-8h is reacted, and is cooled to room temperature, and centrifugation, cleaning are obtained carbon nanometer Pipe@mangaic acid nickel nucleocapsid heterogeneous structure materials;
The CNT mangaic acid nickel nucleocapsid heterogeneous structure material, with CNT as skeleton, coats lamellar mangaic acid outside it Nickel nano material, forms core-shell nano dissimilar materials.
2. preparation method according to claim 1, it is characterised in that mass concentration >=60% of nitric acid used in step a.
3. preparation method according to claim 1, it is characterised in that CNT is in redistilled water in step b Concentration is 0.3-0.8g/L.
4. preparation method according to claim 1, it is characterised in that in step c Nickel dichloride. in mixed solution concentration >= 0.02 mol L-1
5. preparation method according to claim 1, it is characterised in that potassium permanganate concentration in mixed solution in step c ≥0.05 mol L-1
6. preparation method according to claim 1, it is characterised in that volume >=15 mL of redistilled water in step c.
7. preparation method according to claim 1, it is characterised in that stirring means are in step b and c:Stirred using magnetic force Device stirring is mixed, rotating speed is >=2000 r/min, mixing time >=1 h.
CN201410626056.8A 2014-11-08 2014-11-08 Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof Expired - Fee Related CN104361999B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410626056.8A CN104361999B (en) 2014-11-08 2014-11-08 Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410626056.8A CN104361999B (en) 2014-11-08 2014-11-08 Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN104361999A CN104361999A (en) 2015-02-18
CN104361999B true CN104361999B (en) 2017-05-10

Family

ID=52529254

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410626056.8A Expired - Fee Related CN104361999B (en) 2014-11-08 2014-11-08 Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN104361999B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105289643B (en) * 2015-11-11 2018-01-02 东华大学 A kind of mangaic acid nickel carbon nano-tube composite catalyst and its preparation and application
CN109859961A (en) * 2018-10-29 2019-06-07 哈尔滨工业大学(深圳) A kind of preparation method of the flexible super capacitor electrode based on chemical & blended fabric
CN109752432B (en) * 2019-01-31 2021-02-26 西南大学 Ascorbic acid sensor electrode with nano nickel manganate and preparation method thereof
CN109741966B (en) * 2019-02-27 2020-10-09 江西理工大学 Ni6MnO8@ carbon nanotube composite material and preparation method and application thereof
CN111558379B (en) * 2020-05-21 2021-02-09 苏州大学 Preparation method of hollow spherical black lead copper ore phase metal oxide electrocatalyst, electrocatalyst and application thereof
CN111812178B (en) * 2020-07-29 2023-02-24 成都师范学院 Preparation and application methods of immunosensor for detecting classical swine fever virus by using nickel manganate material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103579638A (en) * 2013-11-11 2014-02-12 上海中聚佳华电池科技有限公司 Air electrode catalyst of lithium air battery and preparation method of air electrode catalyst
CN103943838A (en) * 2014-04-21 2014-07-23 西安交通大学 Preparation method of metal oxide nanosheet and carbon nanotube composite energy-storage material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103579638A (en) * 2013-11-11 2014-02-12 上海中聚佳华电池科技有限公司 Air electrode catalyst of lithium air battery and preparation method of air electrode catalyst
CN103943838A (en) * 2014-04-21 2014-07-23 西安交通大学 Preparation method of metal oxide nanosheet and carbon nanotube composite energy-storage material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
High interfacial storage capability of porous NiMn2O4/C hierarchical tremella-like nanostructures as the lithium ion battery anode;Wenpei Kang等;《Nanoscale》;20141015;第7卷(第1期);第225-231页 *

Also Published As

Publication number Publication date
CN104361999A (en) 2015-02-18

Similar Documents

Publication Publication Date Title
CN104361999B (en) Carbon nano-tube @ nickel manganese core-shell heterostructure material, and preparation method and application thereof
Wang et al. Cation exchange formation of prussian blue analogue submicroboxes for high-performance Na-ion hybrid supercapacitors
Liang et al. Oxygen-vacancy-rich nickel-cobalt layered double hydroxide electrode for high-performance supercapacitors
CN105001420B (en) A kind of preparation method of polypyrrole nanofibers conductive electrode material
Liao et al. Hydrothermal synthesis of mesoporous MnCo2O4/CoCo2O4 ellipsoid-like microstructures for high-performance electrochemical supercapacitors
CN104078248B (en) The preparation method and flexible electrode of a kind of flexible electrode
CN105070527B (en) The preparation method of graphene/polypyrrole/manganese dioxide ternary composite electrode material
CN104157833B (en) A kind of Graphene/titanium dioxide composite porous material and its production and use
Dong et al. The synthesis of graphene/PVDF composite binder and its application in high performance MnO2 supercapacitors
CN104465117B (en) A kind of cobalt acid zinc@manganese dioxide nucleocapsid heterogeneous structural nano pipe array materials, preparation method and applications
CN106904653B (en) It the preparation method of vanadium dioxide nano material and is applied in magnesium chargeable battery
Zhang et al. NiCo2O4 arrays nanostructures on nickel foam: morphology control and application for pseudocapacitors
CN103700829B (en) Titanium dioxide (B)-Graphene is from the preparation method of winding nano composite material
CN105632787B (en) A kind of preparation method of the nano combined electrode material for super capacitor of cobalt oxide/graphene
CN106298284A (en) A kind of preparation method of electrically conductive polyaniline/graphene oxide composite electrode material
CN105513822B (en) The preparation method of the electrode material of manganese dioxide cladding hollow carbon fiber
CN104021948B (en) Nanofiber-shaped three-dimensional nickel hydroxide/carbon nanotube composite material as well as preparation method and application thereof
CN106531472B (en) A kind of preparation method of polypyrrole/graphene/manganese oxide composite material
CN104752070B (en) A kind of zinc oxide@manganese dioxide@polypyrrole ternary core-shell heterogeneous structural nanos rod array material, preparation method and applications
CN108597890A (en) A kind of polyaniline/graphene/nickel manganese hydroxide electrode material for super capacitor and preparation method thereof
Wang et al. Foldable and free-standing 3D network electrodes based on cellulose nanofibers, carbon nanotubes and elongated TiO2 nanotubes
CN110085453A (en) The preparation method and application of the hud typed Ni-Co LDH@Ni-Mn LDH of carbon nanotube foam support
CN105118686B (en) The preparation method of graphene/polyaniline/manganese dioxide ternary composite electrode material
CN105789628B (en) A kind of azepine graphene and manganese dioxide hybrid aerogel and its preparation method and application
Tatrari et al. Quantum dots based materials for new generation supercapacitors application: a recent overview

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170510

Termination date: 20181108