Influence of tetraethylammonium cation on electrochemical CO2 reduction over Cu, Ag, Ni, and Fe surfaces

化学 四乙基铵 氧化还原 离解(化学) 无机化学 过渡金属 电化学 离子液体 催化作用 离子键合 电极 物理化学 有机化学 离子
作者
Ashok Kumar Ummireddi,Shilendra Kumar Sharma,Raj Ganesh S. Pala
出处
期刊:Journal of Catalysis [Elsevier BV]
卷期号:406: 213-221 被引量:12
标识
DOI:10.1016/j.jcat.2022.01.013
摘要

Enhancing the selectivity and activity of desired CO2 reduction products while suppressing hydrogen evolution reaction (HER) will facilitate the commercialization of electro-reduction of CO2 to hydrocarbons. Except for gold, polycrystalline surfaces of all transition metals used for the electrochemical CO2 reduction reaction (CO2RR) suffer from low CO2RR selectivities and activities at lower overpotentials. As ionic liquid cations stabilize key CO2RR intermediates and destabilize the HER intermediates, we studied the influence of tetraethylammonium (TEA+) cation on CO2RR and HER activities, experimentally, over transition metal electrodes (Cu, Fe, Ag, and Ni). We observed an enhancement in CO2RR activity and major CO2RR product formation in the presence of TEA+ cation on Cu and Ag. In addition, HER activity was enhanced on Ni and Fe surfaces but suppressed on Ag and Cu surfaces. Density functional theory (DFT) based computational studies were employed to rationalize these observations. Experimental and computational results suggest that the decreased activation energy for water dissociation enhanced the HER activity on Ni and Fe. Further, the increased activation energy for water dissociation suppressed HER activity on Cu and Ag. Moreover, the increase in *COO– (or CO2–⋅) binding energy in the presence of TEA+ cation is crucial for enhancing CO2RR activity and major CO2RR product formation on Cu and Ag. Thus, this study of the influence of TEA+ cation on CO2RR/HER activity over transition metal electrodes helps in exploring other ionic liquid cation-electrode combinations in terms of CO2–⋅ intermediate stabilization and water dissociation suppression for selective electrochemical CO2 reduction to fuels.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
李爱国应助邪恶小天使采纳,获得10
刚刚
无梦为安发布了新的文献求助10
刚刚
刘仁轨发布了新的文献求助10
刚刚
刚刚
1秒前
1秒前
1秒前
养虎人发布了新的文献求助10
1秒前
hrrypeet完成签到,获得积分10
2秒前
111完成签到,获得积分10
2秒前
范范完成签到,获得积分20
2秒前
NexusExplorer应助meng采纳,获得10
2秒前
3秒前
行者完成签到,获得积分10
3秒前
CipherSage应助土大款采纳,获得10
3秒前
3秒前
量子星尘发布了新的文献求助10
4秒前
4秒前
4秒前
4秒前
小白完成签到,获得积分10
5秒前
墨客完成签到,获得积分20
6秒前
6秒前
紫色奶萨完成签到,获得积分10
7秒前
7秒前
cherlie应助淡然的夜柳采纳,获得10
7秒前
城市公园完成签到,获得积分10
7秒前
深情安青应助养虎人采纳,获得10
8秒前
千千完成签到,获得积分10
8秒前
王梦豪发布了新的文献求助10
8秒前
8秒前
zzy完成签到,获得积分10
8秒前
Yoo完成签到,获得积分10
9秒前
10秒前
10秒前
10秒前
10秒前
酷酷的小鹿完成签到,获得积分20
10秒前
科研通AI5应助Tian_lanlan采纳,获得10
11秒前
等等发布了新的文献求助10
12秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3975165
求助须知:如何正确求助?哪些是违规求助? 3519595
关于积分的说明 11198781
捐赠科研通 3255912
什么是DOI,文献DOI怎么找? 1798001
邀请新用户注册赠送积分活动 877343
科研通“疑难数据库(出版商)”最低求助积分说明 806298