Anodic Hydrazine Oxidation Assists Energy-Efficient Hydrogen Evolution over a Bifunctional Cobalt Perselenide Nanosheet Electrode

Jun-Ye Zhang; Hongming Wang; Yifan Tian; Ya Yan; Qi Xue; Ting He; Hongfang Liu; Chundong Wang; Yu Chen; Bao Yu Xia

doi:10.1002/anie.201803543

Anodic Hydrazine Oxidation Assists Energy-Efficient Hydrogen Evolution over a Bifunctional Cobalt Perselenide Nanosheet Electrode

Angew Chem Int Ed Engl. 2018 Jun 25;57(26):7649-7653. doi: 10.1002/anie.201803543. Epub 2018 May 23.

Authors

Jun-Ye Zhang¹, Hongming Wang², Yifan Tian³, Ya Yan⁴, Qi Xue⁵, Ting He¹, Hongfang Liu¹, Chundong Wang³, Yu Chen⁵, Bao Yu Xia^{1

6}

Affiliations

¹ Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P. R. China.
² Institute for Advanced Study, Nanchang University, 999 Xuefu Road, Nanchang, P. R. China.
³ School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P. R. China.
⁴ School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, P. R. China.
⁵ Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (MOE), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, 199 Chang'an Rd, Xi'an, 710062, P. R. China.
⁶ Shenzhen Institute of Huazhong University of Science and Technology, 9 Yuexing Road, Shenzhen, 518000, P. R. China.

PMID: 29696766
DOI: 10.1002/anie.201803543

Abstract

Water electrolysis is a promising source of hydrogen; however, technological challenges remain. Intensive efforts have focused on developing highly efficient and earth-abundant electrocatalysts for water splitting. An effective strategy is proposed, using a bifunctional tubular cobalt perselenide nanosheet electrode, in which the sluggish oxygen evolution reaction is substituted with anodic hydrazine oxidation so as to assist energy-efficient hydrogen production. Specifically, this electrode produces a current density of 10 mA cm^-2 at -84 mV for hydrogen evolution and -17 mV for hydrazine oxidation in 1.0 m KOH and 0.5 m hydrazine electrolyte. An ultralow cell voltage of only 164 mV is required to generate a current density of 10 mA cm^-2 for 14 hours of stable water electrolysis.

Keywords: bifunctional electrocatalysts; cobalt perselenides; hydrazine oxidation; hydrogen evolution reaction.

Publication types

Research Support, Non-U.S. Gov't