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1. (WO2018103580) PALLADIUM OXIDE CATALYST FOR DIRECT FORMIC ACID FUEL CELL AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2018/103580    International Application No.:    PCT/CN2017/113795
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Dec 01 00:59:59 CET 2017
IPC: H01M 4/88
H01M 4/90
Applicants: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
华南理工大学
Inventors: ZENG, Jianhuang
曾建皇
JIANG, Yangcheng
蒋扬程
LIU, Zhen
刘真
LIAO, Shijun
廖世军
Title: PALLADIUM OXIDE CATALYST FOR DIRECT FORMIC ACID FUEL CELL AND PREPARATION METHOD THEREFOR
Abstract:
The present invention discloses a palladium oxide catalyst for a direct formic acid fuel cell and a preparation method therefor. The preparation method is as follows: dissolving palladium chloride into an aqueous solution, and adding sodium citrate or potassium citrate to adjust the pH value of the solution to 9-13; then placing the above solution in a microwave reactor for microwave reaction for 3-30 minutes, while simultaneously performing reflux and magnetic stirring, to obtain a palladium oxide colloidal solution; after the palladium oxide colloid is cooled, adding a commercial carbon powder or carbon nanotubes to collect palladium oxide; and finally, performing suction filtration, and washing, vacuum-drying, and grinding of a filter cake, to obtain a carbon-supported palladium oxide catalyst. The present invention uses water as a solvent and is green and environmentally friendly, and no organic substance is involved in the reaction in the whole process; further, the invention does not add any protective agent with a high molecular weight, so that post-treatment is not required after the preparation of the catalyst, and it features a short reaction time and a reduced energy consumption. The process for preparing the palladium oxide electrocatalyst of the present invention is simple and facilitates mass production.