Binder‐Free N‐Functionalized Carbon Electrodes for Oxygen Evolution Reaction

Author:

Song Feihong1,Straten Jan W.12ORCID,Lin Yang‐Ming13,Ding Yuxiao14,Schlögl Robert15,Heumann Saskia1ORCID,Mechler Anna K.16ORCID

Affiliation:

1. Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany

2. current address: Universität Hohenheim Institut für Agrartechnik (440 f) Garbenstr. 9 70599 Stuttgart Germany

3. current address: Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R.China

4. current adress Lanzhou Institute of Chemical Physics Tianshui Middle Road 18 730000 Lanzhou P. R. China

5. Fritz-Haber-Institute of the Max Planck Society Faradayweg 4–6 14195 Berlin Germany

6. current address: RWTH Aachen University Electrochemical Reaction Engineering Forckenbeckstraße 51 52074 Aachen Germany

Abstract

AbstractThe oxygen evolution reaction (OER) is one of the bottlenecks of electrochemical water splitting. Metal‐free carbons from biomass are highly abundant and can be easily synthesized. Their low price, high conductivity and functionalization makes them promising materials. Herein, we report about free‐standing carbon electrodes as electrocatalysts for the OER. In contrast to powder‐based catalysts, free‐standing electrodes not only avoid additives, but also facilitate post analysis and better reflect industrial conditions. Here, the performance of pure carbon electrodes is compared to those of N‐functionalized ones. Utilizing several analytical techniques, the difference in performance can be rationalized by physical properties. Especially, the analysis of the gaseous products is shown to be of crucial importance. It reveals that N‐doped carbons generate more oxygen and are more robust against carbon corrosion. This illustrates the importance of measuring selectivity especially for carbon electrocatalysts, as higher currents do not necessarily result in higher catalytic activity.

Funder

Max-Planck-Gesellschaft

Publisher

Wiley

Subject

Electrochemistry,Catalysis

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

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