钯
磷化物
甲酸
电催化剂
纳米棒
材料科学
奥斯特瓦尔德成熟
催化作用
化学
化学工程
电化学
无机化学
纳米技术
有机化学
电极
物理化学
工程类
作者
Tianjiao Wang,Yu‐Chuan Jiang,Jia He,Fumin Li,Yu Ding,Pei Chen,Yu Chen
出处
期刊:Carbon energy
[Wiley]
日期:2022-01-10
卷期号:4 (3): 283-293
被引量:94
摘要
Abstract The development of an efficient catalyst for formic acid electrocatalytic oxidation reaction (FAEOR) is of great significance to accelerate the commercial application of direct formic acid fuel cells (DFAFC). Herein, palladium phosphide (Pd x P y ) porous nanotubes (PNTs) with different phosphide content (i.e., Pd 3 P and Pd 5 P 2 ) are prepared by combining the self‐template reduction method of dimethylglyoxime‐Pd(II) complex nanorods and succedent phosphating treatment. During the reduction process, the self‐removal of the template and the continual inside–outside Ostwald ripening phenomenon are responsible for the generation of the one‐dimensional hollow and porous architecture. On the basis of the unique synthetic procedure and structural advantages, Pd 3 P PNTs with optimized phosphide content show outstanding electroactivity and stability for FAEOR. Importantly, the strong electronic effect between Pd and P promotes the direct pathway of FAEOR and inhibits the occurrence of the formic acid decomposition reaction, which effectively enhances the FAEOR electroactivity of Pd 3 P PNTs. In view of the facial synthesis, excellent electroactivity, high stability, and unordinary selectivity, Pd 3 P PNTs have the potential to be an efficient anode electrocatalyst for DFAFC.
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