A NiCo/TiO2 battery anode catalyst and preparation method thereof

A catalyst and anode technology, which is applied in the field of NiCo/TiO2 battery anode catalyst and its preparation, can solve the problems affecting the performance and application, and the conductivity is not ideal, so as to improve the performance of the battery, improve the ability to resist CO poisoning, and reduce the cost. Effect

Active Publication Date: 2019-01-18
南通大学技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But TiO 2 As a semiconductor, the conductivity is not ideal, and the catalyst needs to be doped with C when used, which affects its performance and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) TiO 2 Preparation of nanotube carrier: Sol-gel method and high-pressure hydrothermal reaction were adopted. Dissolve the calculated amount of butyl titanate in a certain amount of absolute ethanol, add dropwise a mixture of absolute ethanol, glacial acetic acid and deionized water under stirring, and continue stirring after hydrolysis to form a sol, and let it stand for 2- After 3 days, the powder obtained after vacuum drying at 80°C for 8-10 hours is ground and then calcined in air at 500°C for 3 hours in a muffle furnace to obtain nano-TiO 2 powder. TiO will be produced 2 Add the powder into the liner of the autoclave, add 10mol / L NaOH solution and mix, and react at 150°C for 24 hours. The obtained samples were washed with deionized water and 0.1mol / L HCl solution respectively, dried at 80°C, and air roasted in a muffle furnace at 500°C for 3 hours to obtain TiO 2 nanotube. The consumption molar ratio of butyl titanate, dehydrated alcohol, glacial acetic acid...

Embodiment 2

[0044] n in step (5) Ni :n Co =1:1, NiCo / TiO 2 Medium W NiCo =2%, others are the same as embodiment 1.

Embodiment 3

[0046] n in step (5) Ni :n Co =3:7, NiCo / TiO 2 Medium W NiCo =3%, others are the same as embodiment 1.

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PUM

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Abstract

The invention discloses an N, C doped NiCo / TiO2 direct methanol fuel cell anode catalyst, wherein the product is composed of nanometer TiO2 carrier with high specific surface area and nanometer NiCo alloy doped with N and C. NiCo alloy and doped N, C can improve the conductivity of TiO2 carrier, NiCo alloy and N, the synergistic effect of C doping on TiO2 improves the catalytic performance of TiO2for methanol oxidation, At that same time, CO and other intermediate product generated by the oxidation of methanol are adsorbed, and transfered to N, C-doped NiCo / TiO2 catalyst surface, and is deeply oxidized to the final product CO2, the CO poisoning resistance of the catalyst can be improved. Since the price of NiCo is far lower than that of Pt, Ru and other noble metals, and the amount of NiCo / TiO2 catalyst doped with N and C is relatively small, the cost of the catalyst can be greatly reduced, and the battery performance can be improved.

Description

technical field [0001] The present invention relates to a kind of NiCo / TiO 2 Battery anode catalyst and preparation method thereof, in particular to a kind of N,C doped NiCo / TiO 2 The invention discloses a direct methanol fuel cell anode catalyst and a preparation method thereof, belonging to the technical field of battery catalysts. Background technique [0002] Direct Methanol Fuel Cell (DMFC) has the advantages of low energy consumption, high energy density, abundant sources of methanol, low price, simple system, convenient operation and low noise, and is considered to be the most promising future vehicle power and other vehicles. Promising chemical power sources have attracted widespread attention. One of the most critical materials of DMFC is the electrode catalyst, which directly affects the performance, stability, service life and manufacturing cost of the battery. The noble metal Pt has excellent catalytic performance at low temperature (less than 80°C). At presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90H01M8/1011B82Y30/00
CPCH01M4/88H01M4/9041H01M4/9075H01M8/1011B82Y30/00Y02E60/50
Inventor 鞠剑峰吴锦明王淼汪洋姚勇徐立查雅君兰天蓉
Owner 南通大学技术转移中心有限公司
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