Dopant-induced electron localization drives CO2 reduction to C2 hydrocarbons

化学 法拉第效率 掺杂剂 电合成 电化学 催化作用 碳纤维 产品分销 化学工程 价(化学) 兴奋剂 无机化学 纳米技术 电极 有机化学 材料科学 光电子学 物理化学 复合材料 工程类 复合数
作者
Yansong Zhou,Fanglin Che,Min Liu,Chengqin Zou,Zhiqin Liang,Phil De Luna,Haifeng Yuan,Jun Li,Zhi-Qiang Wang,Haipeng Xie,Hongmei Li,Peining Chen,Eva Bladt,Rafael Quintero‐Bermudez,Tsun‐Kong Sham,Sara Bals,Johan Hofkens,David Sinton,Gang Chen,Edward H. Sargent
出处
期刊:Nature Chemistry [Nature Portfolio]
卷期号:10 (9): 974-980 被引量:989
标识
DOI:10.1038/s41557-018-0092-x
摘要

The electrochemical reduction of CO2 to multi-carbon products has attracted much attention because it provides an avenue to the synthesis of value-added carbon-based fuels and feedstocks using renewable electricity. Unfortunately, the efficiency of CO2 conversion to C2 products remains below that necessary for its implementation at scale. Modifying the local electronic structure of copper with positive valence sites has been predicted to boost conversion to C2 products. Here, we use boron to tune the ratio of Cuδ+ to Cu0 active sites and improve both stability and C2-product generation. Simulations show that the ability to tune the average oxidation state of copper enables control over CO adsorption and dimerization, and makes it possible to implement a preference for the electrosynthesis of C2 products. We report experimentally a C2 Faradaic efficiency of 79 ± 2% on boron-doped copper catalysts and further show that boron doping leads to catalysts that are stable for in excess of ~40 hours while electrochemically reducing CO2 to multi-carbon hydrocarbons. On copper catalysts, Cuδ+ sites play a key role in the electrochemical reduction of CO2 to C2 hydrocarbons, however, they are prone to being reduced (to Cu0) themselves. Now, a Cuδ+-based catalyst is reported that is stable for in excess of ~40 hours while electrochemically reducing CO2 to multi-carbon hydrocarbons and that exhibits a Faradaic efficiency for C2 of ~80%.
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
刚刚
刚刚
QQ完成签到,获得积分10
2秒前
蔚欢发布了新的文献求助10
4秒前
6秒前
Akim应助罗拉采纳,获得10
7秒前
丘比特应助Heartlark采纳,获得10
7秒前
7秒前
延文星完成签到,获得积分20
9秒前
10秒前
xyj6486发布了新的文献求助10
10秒前
12秒前
12秒前
12秒前
bkagyin应助shao采纳,获得10
12秒前
糟糕的日记本完成签到,获得积分10
12秒前
蔚欢完成签到,获得积分10
13秒前
mx发布了新的文献求助10
15秒前
一川烟叶完成签到,获得积分10
15秒前
16秒前
时尚俊驰发布了新的文献求助10
17秒前
17秒前
整齐小松鼠应助mini采纳,获得10
19秒前
恋雅颖月应助liii采纳,获得10
21秒前
罗拉发布了新的文献求助10
23秒前
persist完成签到,获得积分10
24秒前
讨厌科研发布了新的文献求助10
24秒前
沉默曼文发布了新的文献求助40
25秒前
研友_VZG7GZ应助如梦如幻91采纳,获得10
25秒前
26秒前
充电宝应助mx采纳,获得10
27秒前
隐形曼青应助时尚俊驰采纳,获得10
28秒前
29秒前
量子星尘发布了新的文献求助10
29秒前
科研通AI5应助文献采纳,获得30
32秒前
cyan关注了科研通微信公众号
32秒前
33秒前
Qi发布了新的文献求助10
33秒前
领导范儿应助张钦奎采纳,获得10
34秒前
shao完成签到,获得积分10
34秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3989378
求助须知:如何正确求助?哪些是违规求助? 3531442
关于积分的说明 11254002
捐赠科研通 3270126
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809173