A new pathway for formic acid electro-oxidation: The electro-chemically decomposed hydrogen as a reaction intermediate

被引：24

作者：

Yang, Xiaolong ^{[1
,2
]}

Meng, Qinglei ^{[1
,2
]}

Wang, Xian ^{[1
,2
]}

Jin, Zhao ^{[1
]}

Liu, Changpeng ^{[1
,2
]}

Ge, Junjie ^{[1
,2
]}

Xing, Wei ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Univ Sci & Technol China, Sch Appl Chem & Engn, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF ENERGY CHEMISTRY | 2022年 / 71卷

基金：

中国国家自然科学基金;

关键词：

Formic acid electro-ox dation reaction; Hydrogen; Pt; Single atom catalysts; Reaction pathway; INFRARED-SPECTROSCOPY; OXIDATION; PLATINUM; ABSORPTION;

D O I：

10.1016/j.jechem.2022.03.036

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Formic acid electro-oxidation reaction (FAOR) is generally believed that follows a two-pathway mechanism. Herein, we resorted to in situ electrochemical mass spectrometry and successfully captured the trace of H-2, as the new intermediate species, during the process of FAOR on both Pt based catalyst and two single atom catalysts (Rh-N-C and Ir-N-C). Inspired by this, we proposed a new reaction path named hydrogen oxidation pathway: at the oxidation potential, formic acid will break the C-H bond and combine with the protons in the solution to form H-2 species, then hydrogen oxidation reaction (HOR) will occur to generate two protons. This process is accompanied by electron transfer and contributes currently to the whole reaction. (C) 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.

引用

页码：188 / 191

页数：4

共 23 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].