Combined anodic and cathodic hydrogen production from aldehyde oxidation and hydrogen evolution reaction

被引：487

作者：

Wang, Tehua ^{[1
,2
]}

Tao, Li ^{[1
]}

Zhu, Xiaorong ^{[3
]}

Chen, Chen ^{[1
]}

Chen, Wei ^{[1
]}

Du, Shiqian ^{[1
]}

Zhou, Yangyang ^{[1
]}

Zhou, Bo ^{[1
]}

Wang, Dongdong ^{[1
]}

Xie, Chao ^{[1
]}

Long, Peng ^{[1
]}

Li, Wei ^{[1
]}

Wang, Yanyong ^{[1
]}

Chen, Ru ^{[1
]}

Zou, Yuqin ^{[1
]}

Fu, Xian-Zhu ^{[2
]}

Li, Yafei ^{[3
]}

Duan, Xiangfeng ^{[4
]}

Wang, Shuangyin ^{[1
]}

机构：

[1] Hunan Univ, Minist Educ, State Key Lab Chemo Biosensing & Chemometr, Coll Chem & Chem Engn,Adv Catalyt Engn Res Ctr, Changsha, Peoples R China

[2] Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen, Peoples R China

[3] Nanjing Normal Univ, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Sch Chem & Mat Sci, Jiangsu Key Lab New Power Batteries, Nanjing, Peoples R China

[4] Univ Calif Los Angeles, Dept Chem & Biochem, 405 Hilgard Ave, Los Angeles, CA 90024 USA

来源：

NATURE CATALYSIS | 2022年 / 5卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

OXYGEN REDUCTION; H-2; EVOLUTION; EFFICIENT; WATER; FORMALDEHYDE; GENERATION; CATALYST; ORIGIN; ACID; NI;

D O I：

10.1038/s41929-021-00721-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hydrogen production through water electrolysis is of considerable interest for converting the intermittent electricity generated by renewable energy sources into storable chemical energy, but the typical water electrolysis process requires a high working voltage (>1.23 V) and produces oxygen at the anode in addition to hydrogen at the cathode. Here we report a hydrogen production system that combines anodic and cathodic H-2 production from low-potential aldehyde oxidation and the hydrogen evolution reaction, respectively, at a low voltage of similar to 0.1V. Unlike conventional aldehyde electrooxidation, in which the hydrogen atom of the aldehyde group is oxidized into H2O at high potentials, the low-potential aldehyde oxidation enables the hydrogen atom to recombine into H-2 gas. The assembled electrolyser requires an electricity input of only similar to 0.35 kWh per m(3) of H-2, in contrast to the similar to 5 kWh per m(3) of H-2 required for conventional water electrolysis. This study provides a promising avenue for the safe, efficient and scalable production of high-purity hydrogen.

引用

页码：66 / 73

页数：8

共 52 条

[1] Nano-Cu catalyze hydrogen production from formaldehyde solution at room temperature [J].