Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aaw7515 |
Atomically dispersed Fe3+ sites catalyze efficient CO2 electroreduction to CO | |
Gu, Jun1; Hsu, Chia-Shuo2; Bai, Lichen1; Chen, Hao Ming2; Hu, Xile1 | |
2019-06-14 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 364期号:6445页码:1091-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Taiwan |
英文摘要 | Currently, the most active electrocatalysts for the conversion of CO2 to CO are gold-based nanomaterials, whereas non-precious metal catalysts have shown low to modest activity. Here, we report a catalyst of dispersed single-atom iron sites that produces CO at an overpotential as low as 80 millivolts. Partial current density reaches 94 milliamperes per square centimeter at an overpotential of 340 millivolts. Operando x-ray absorption spectroscopy revealed the active sites to be discrete Fe3+ ions, coordinated to pyrrolic nitrogen (N) atoms of the N-doped carbon support, that maintain their +3 oxidation state during electrocatalysis, probably through electronic coupling to the conductive carbon support. Electrochemical data suggest that the Fe3+ sites derive their superior activity from faster CO2 adsorption and weaker CO absorption than that of conventional Fe2+ sites. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471306700046 |
WOS关键词 | ELECTROCHEMICAL REDUCTION ; SELECTIVE CONVERSION ; ELECTRODES ; OXIDATION ; CARBON ; IRON |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/201649 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Inorgan Synth & Catalysis, ISIC,LSCI, BCH 3305, CH-1015 Lausanne, Switzerland; 2.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan |
推荐引用方式 GB/T 7714 | Gu, Jun,Hsu, Chia-Shuo,Bai, Lichen,et al. Atomically dispersed Fe3+ sites catalyze efficient CO2 electroreduction to CO[J]. SCIENCE,2019,364(6445):1091-+. |
APA | Gu, Jun,Hsu, Chia-Shuo,Bai, Lichen,Chen, Hao Ming,&Hu, Xile.(2019).Atomically dispersed Fe3+ sites catalyze efficient CO2 electroreduction to CO.SCIENCE,364(6445),1091-+. |
MLA | Gu, Jun,et al."Atomically dispersed Fe3+ sites catalyze efficient CO2 electroreduction to CO".SCIENCE 364.6445(2019):1091-+. |
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