pdmo/tio 2 Nanowire Anode Catalyst for Direct Methanol Fuel Cells

Abstract

The invention discloses an anode catalyst for a PdMo / TiO2 nanowire direct methanol fuel cell and a preparation method. The anode catalyst is composed of TiO2 nanowire and PdMo nano-alloy. According to the invention, the TiO2 nanowire having high specific surface area as a carrier is compounded with the PdMo nano alloy, so that a polybasic catalyst is formed; by means of PdMo compounding, the electrical conductivity of TiO2 is increased; the catalytic and oxidative performance of TiO2 to methanol is increased under the synergistic effect to TiO2; meanwhile, intermediate products generated by methanol oxidation, such as CO, are adsorbed and transferred on the surface of the compound catalyst and are deeply oxidized directly to obtain the final product, namely CO2; therefore, the CO poison resistant capability of the catalyst can be increased; the cost of PdMo is far less than that of the noble metals, such as Pt and Ru; the use amount of PdMo in the catalyst is lower; therefore, the cost of the catalyst in the direct methanol fuel cell can be greatly reduced; and the performances of the direct methanol fuel cell are increased.

Description

[0001] This application is the application number: 201310087407.8, application date: 2013-03-19, name "PdMo / TiO 2 "Nanowire Direct Methanol Fuel Cell Anode Catalyst and Preparation Method" divisional application. technical field [0002] The present invention relates to PdMo / TiO 2 Nanowire direct methanol fuel cell anode catalyst and preparation method. Background technique [0003] 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 t...

AI Technical Summary

Problems solved by technology

As reported the preparation of PtRuTiO X / C and Au / TiO 2 PtRu catalyst, TiO 2 Combination can reduce the amount of noble metal Pt in the catalyst, improve catalytic performance and anti-CO poisoning ability, and has application prospects. TiO 2 The preparation of non-platinum anode catalysts for direct methanol fuel cells with nanowires as supports has not been reported yet