Single atom Cu-N-C catalysts for the electro-reduction of CO2 to CO assessed by rotating ring-disc electrode

IF 14 1区 化学 Q1 CHEMISTRY, APPLIED 能源化学 Pub Date : 2023-09-20 DOI:10.1016/j.jechem.2023.09.005
S. Pérez-Rodríguez , M. Gutiérrez-Roa , C. Giménez-Rubio , D. Ríos-Ruiz , P. Arévalo-Cid , M.V. Martínez-Huerta , A. Zitolo , M.J. Lázaro , D. Sebastián
{"title":"Single atom Cu-N-C catalysts for the electro-reduction of CO2 to CO assessed by rotating ring-disc electrode","authors":"S. Pérez-Rodríguez ,&nbsp;M. Gutiérrez-Roa ,&nbsp;C. Giménez-Rubio ,&nbsp;D. Ríos-Ruiz ,&nbsp;P. Arévalo-Cid ,&nbsp;M.V. Martínez-Huerta ,&nbsp;A. Zitolo ,&nbsp;M.J. Lázaro ,&nbsp;D. Sebastián","doi":"10.1016/j.jechem.2023.09.005","DOIUrl":null,"url":null,"abstract":"<div><p>The electrochemical CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) to controllable chemicals is considered as a promising pathway to store intermittent renewable energy. Herein, a set of catalysts based on copper-nitrogen-doped carbon xerogel (Cu-N-C) are successfully developed varying the copper amount and the nature of the copper precursor, for the efficient CO<sub>2</sub>RR. The electrocatalytic performance of Cu-N-C materials is assessed by a rotating ring-disc electrode (RRDE), technique still rarely explored for CO<sub>2</sub>RR. For comparison, products are also characterized by online gas chromatography in a H-cell. The as-synthesized Cu-N-C catalysts are found to be active and highly CO selective at low overpotentials (from −0.6 to −0.8 V vs. RHE) in 0.1 M KHCO<sub>3</sub>, while H<sub>2</sub> from the competitive water reduction appears at larger overpotentials (−0.9 V vs. RHE). The optimum copper acetate-derived catalyst containing Cu-N<sub>4</sub> moieties exhibits a CO<sub>2</sub>-to-CO turnover frequency of 997 h<sup>−1</sup> at −0.9 V vs. RHE with a H<sub>2</sub>/CO ratio of 1.8. These results demonstrate that RRDE configuration can be used as a feasible approach for identifying electrolysis products from CO<sub>2</sub>RR.</p></div>","PeriodicalId":67498,"journal":{"name":"能源化学","volume":"88 ","pages":"Pages 169-182"},"PeriodicalIF":14.0000,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"能源化学","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2095495623005107","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 1

Abstract

The electrochemical CO2 reduction reaction (CO2RR) to controllable chemicals is considered as a promising pathway to store intermittent renewable energy. Herein, a set of catalysts based on copper-nitrogen-doped carbon xerogel (Cu-N-C) are successfully developed varying the copper amount and the nature of the copper precursor, for the efficient CO2RR. The electrocatalytic performance of Cu-N-C materials is assessed by a rotating ring-disc electrode (RRDE), technique still rarely explored for CO2RR. For comparison, products are also characterized by online gas chromatography in a H-cell. The as-synthesized Cu-N-C catalysts are found to be active and highly CO selective at low overpotentials (from −0.6 to −0.8 V vs. RHE) in 0.1 M KHCO3, while H2 from the competitive water reduction appears at larger overpotentials (−0.9 V vs. RHE). The optimum copper acetate-derived catalyst containing Cu-N4 moieties exhibits a CO2-to-CO turnover frequency of 997 h−1 at −0.9 V vs. RHE with a H2/CO ratio of 1.8. These results demonstrate that RRDE configuration can be used as a feasible approach for identifying electrolysis products from CO2RR.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
通过旋转环盘电极评估用于CO2电还原为CO的单原子Cu-N-C催化剂
将电化学CO2还原反应(CO2RR)转化为可控化学品被认为是储存间歇性可再生能源的一种很有前途的途径。本文成功地开发了一套基于铜氮掺杂碳干凝胶(Cu-N-C)的催化剂,通过改变铜的量和铜前体的性质来实现有效的CO2RR。通过旋转环盘电极(RRDE)评估Cu-N-C材料的电催化性能,该技术对CO2RR仍很少探索。为了进行比较,产品还通过在线气相色谱法在H细胞中进行了表征。在0.1 M KHCO3中,合成的Cu-N-C催化剂在低过电位(相对于RHE为−0.6至−0.8 V)下具有活性和高CO选择性,而竞争性水还原产生的H2在较大过电位(相对RHE为-0.9 V)下出现。含有Cu-N4部分的最佳乙酸铜衍生催化剂在−0.9 V下相对于RHE表现出997 h−1的CO2与CO转换频率,H2/CO比为1.8。这些结果表明,RRDE配置可以作为从CO2RR中识别电解产物的可行方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
23.60
自引率
0.00%
发文量
2875
期刊最新文献
Durable poly(binaphthyl-co-p-terphenyl piperidinium)-based anion exchange membranes with dual side chains Tuning the surface electronic structure of noble metal aerogels to promote the electrocatalytic oxygen reduction Sulfur doped iron-nitrogen-hard carbon nanosheets as efficient and robust noble metal-free catalysts for oxygen reduction reaction in PEMFC A new review of single-ion conducting polymer electrolytes in the light of ion transport mechanisms Chemico-biological conversion of carbon dioxide
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1