Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of film electrode material using graphite coated paper to load NiAu

A thin-film electrode and paper-coated technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as poor anode activity of sodium borohydride fuel cells, achieve rich reserves, solve easy hydrolysis, and solve the effects of small discharge current

Active Publication Date: 2014-07-23
HEILONGJIANG HACHUAN CARBON MATERIAL TECH CO LTD
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a kind of preparation method that can improve the catalytic performance of direct borohydride fuel cell anode, solve the problem of poor activity of sodium borohydride fuel cell anode, graphite coated paper loaded NiAu thin film electrode material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] In order to better illustrate the effect of the process of the present invention, specific examples are used below to illustrate.

[0019] (1) Take a piece of ordinary paper, use clay as a curing agent and mix it evenly with graphite, and then coat it on the surface of the paper, take 1×1cm -2 As a research electrode; (2) 5g NH 4 Cl and 1g NiCl 2 Dissolved in 50mL water, used for Ni electrodeposition by constant potential method. (3) Keep the graphite-coated paper at a voltage of 1.0V for 20-30min to activate the coated graphite, and then electrodeposit Ni at -1.0V for 160-180min to obtain a paper-graphite-Ni film electrode. (4) Finally, put the paper-graphite-Ni film electrode in 1mmol L -1 HAuClO 4 Stand in the solution for 2 to 4 minutes to obtain a paper-graphite-NiAu film electrode, that is, a graphite-coated paper-loaded NiAu catalyst.

[0020] The paper-graphite-NiAu thin film electrode was tested as follows:

[0021] 1. Using paper-graphite-NiAu thin film ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a preparing method of a film electrode material using graphite coated paper to load NiAu. Clay is used as a curing agent, the clay and graphite are mixed evenly, then the surface of ordinary paper is coated with the evenly-mixed clay and graphite; 5-5.5g of NH4Cl and 1-1.5g of NiCl2 are dissolved in 50mL of water for preparing an electro-deposition solution; the paper coated with the graphite is maintained in the electro-deposition solution under 1.0V voltage for 20-30min for activation of the coated graphite, then a paper-graphite-Ni film electrode is obtained by 160-180min of electro-deposition of Ni under-1.0 V voltage; the paper-graphite-Ni film electrode is stood in a 1mmol L<-1> HAuClO4 solution for 2 to 4 minutes to obtain a paper-graphite-NiAu film electrode. According to the method, the graphite coated paper the is used, Ni is electrically deposited on the surface of the conductive graphite coated paper, then part of Ni is replaced with Au to prepare a NiAu-loading pencil coated paper catalyst, and the catalytic performance of the positive pole of a direct hydronoron fuel cell can be improved. The problem of poor activity the positive pole of a sodium borohydride fuel cell can be solved.

Description

technical field [0001] The invention relates to a method for preparing a thin film electrode material, in particular to a method for loading NiAu with graphite-coated paper to catalyze the electro-oxidation performance of borohydride. Background technique [0002] Direct sodium borohydride fuel cell (DBFC) is based on NaBH dissolved in alkaline electrolyte solution 4 Fuel cells that directly serve as fuel. Sodium borohydride is a hydrogen storage material with a high hydrogen content (11wt.% for solids and 7.4wt.% for saturated sodium borohydride solutions). Sodium borohydride has a larger volume of hydrogen storage capacity than compressed hydrogen and liquefied hydrogen. NaBH 4 The oxidation kinetics is faster than methanol, and the energy density and battery voltage are also better than methanol. NaBH 4 Non-flammable, low toxicity, no pollution, no CO generation 2 , only weakly corrosive, so the device is simple, small in size, convenient for storage and transportat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90
CPCH01M4/9075Y02E60/50
Inventor 王贵领张栋铭潘越曹殿学徐阳闫鹏
Owner HEILONGJIANG HACHUAN CARBON MATERIAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com