FeNi2S4–A Potent Bifunctional Efficient Electrocatalyst for the Overall Electrochemical Water Splitting in Alkaline Electrolyte

Author:

Hegazy Mohamed Barakat Zakaria12,Zander Judith34,Weiss Morten3,Simon Christopher3,Gerschel Philipp1,Sanden Sebastian A.1,Smialkowski Mathias15,Tetzlaff David15,Kull Tobias1,Marschall Roland34,Apfel Ulf‐Peter13ORCID

Affiliation:

1. Inorganic Chemistry I Ruhr‐University Bochum 44801 Bochum Germany

2. Department of Chemistry Faculty of Science Tanta University Tanta 31527 Egypt

3. Department of Chemistry University of Bayreuth 95447 Bayreuth Germany

4. Bavarian Center for Battery Technology (BayBatt) University of Bayreuth 95447 Bayreuth Germany

5. Fraunhofer Institute for Environmental Safety, and Energy Technology 46047 Oberhausen Germany

Abstract

AbstractFor a carbon‐neutral society, the production of hydrogen as a clean fuel through water electrolysis is currently of great interest. Since water electrolysis is a laborious energetic reaction, it requires high energy to maintain efficient and sustainable production of hydrogen. Catalytic electrodes can reduce the required energy and minimize production costs. In this context, herein, a bifunctional electrocatalyst made from iron nickel sulfide (FeNi2S4 [FNS]) for the overall electrochemical water splitting is introduced. Compared to Fe2NiO4 (FNO), FNS shows a significantly improved performance toward both OER and HER in alkaline electrolytes. At the same time, the FNS electrode exhibits high activity toward the overall electrochemical water splitting, achieving a current density of 10 mA cm−2 at 1.63 V, which is favourable compared to previously published nonprecious electrocatalysts for overall water splitting. The long‐term chronopotentiometry test reveals an activation followed by a subsequent stable overall cell potential at around 2.12 V for 20 h at 100 mA cm−2.

Funder

Alexander von Humboldt-Stiftung

Deutsche Forschungsgemeinschaft

Universität Bayreuth

Publisher

Wiley

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3