期刊
JOURNAL OF POWER SOURCES
卷 450, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2019.227615
关键词
Direct formic acid fuel cells; Intermetallic Pd-Sn compounds; Nanonetworks; Formic acid decomposition; Formic acid electrooxidation
资金
- National Natural Science Foundation of China [21875133, 51602111, U1607116]
- Fundamental Research Funds for the Central Universities [GK201901002]
- Guangdong Provincial Grant [2017A010104013]
- 111 Project [B14041]
Inhibiting formic acid decomposition on Pd-based electrocatalysts is a major challenge for realizing the commercialization of direct formic acid fuel cells (DFAFCs). Inspired by the catalytic characteristics of formic acid decomposition/electrooxidation on Pd-based materials, here we synthesize intermetallic bimetallic Pd-Sn nanonetworks (NNWs) to deal with this problem. Compared to commercial Pd black with high catalytic activity, the strong Pd-Sn electronic interaction in intermetallic Pd3Sn2 NNWs induces the complete inhibition of formic acid decomposition at 80 degrees C. Parallelly, Pd3Sn2 NNWs exhibit mass activity of 448 A g(pd)(1-) for formic acid electrooxidation due to Pd-Sn synergistic effect, which is 2.1 times higher than that of commercial Pd black. The stable intermetallic structure and three-dimensionally interconnected architecture endow Pd3Sn2 NNWs with better electrochemical and electrocatalytic durability, suggesting promising cost-effective anode catalysts for DFAFCs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据