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Atomically Dispersed Transition Metals on Carbon Nanotubes with Ultrahigh Loading for Selective Electrochemical Carbon Dioxide Reduction
文献类型：期刊论文
| 作者 | Cheng, Y; Zhao, SY; Johannessen, B; Veder, JP; Saunders, M; Rowles, MR; Cheng, M; Liu, C; Chisholm, MF; De Marco, R |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018-03-27 |
| 卷号 | 30期号:13页码:- |
| ISSN号 | 0935-9648 |
| 关键词 | Single-atom Catalyst Co2 Electroreduction Hydrogen Evolution Au Nanoparticles Oxygen Evolution Nickel Sites Electrocatalysts Nitride Media |
| 英文摘要 | Single-atom catalysts (SACs) are the smallest entities for catalytic reactions with projected high atomic efficiency, superior activity, and selectivity; however, practical applications of SACs suffer from a very low metal loading of 1-2 wt%. Here, a class of SACs based on atomically dispersed transition metals on nitrogen-doped carbon nanotubes (MSA-N-CNTs, where M = Ni, Co, NiCo, CoFe, and NiPt) is synthesized with an extraordinarily high metal loading, e.g., 20 wt% in the case of NiSA-N-CNTs, using a new multistep pyrolysis process. Among these materials, NiSA-N-CNTs show an excellent selectivity and activity for the electrochemical reduction of CO2 to CO, achieving a turnover frequency (TOF) of 11.7 s(-1) at -0.55 V (vs reversible hydrogen electrode (RHE)), two orders of magnitude higher than Ni nano-particles supported on CNTs.; Single-atom catalysts (SACs) are the smallest entities for catalytic reactions with projected high atomic efficiency, superior activity, and selectivity; however, practical applications of SACs suffer from a very low metal loading of 1-2 wt%. Here, a class of SACs based on atomically dispersed transition metals on nitrogen-doped carbon nanotubes (MSA-N-CNTs, where M = Ni, Co, NiCo, CoFe, and NiPt) is synthesized with an extraordinarily high metal loading, e.g., 20 wt% in the case of NiSA-N-CNTs, using a new multistep pyrolysis process. Among these materials, NiSA-N-CNTs show an excellent selectivity and activity for the electrochemical reduction of CO2 to CO, achieving a turnover frequency (TOF) of 11.7 s(-1) at -0.55 V (vs reversible hydrogen electrode (RHE)), two orders of magnitude higher than Ni nano-particles supported on CNTs. |
| 学科主题 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| 资助机构 | Australian Research Council Discovery Project Funding Scheme [DP150102044, DP150102025, DP180100568, DP180100731]; Australian Research Council LIEF grant [LE120100026]; ORNL's Center for Nanophase Materials Sciences - Scientific User Facilities Division of U.S. Department of Energy; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; National Science Foundation [ACI-1053575]; National Natural Science Foundation of China [51521091]; U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79420]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, SP (reprint author), Curtin Univ, Fuels & Energy Technol Inst, Perth, WA 6102, Australia.; Jiang, SP (reprint author), Curtin Univ, Dept Chem Engn, Perth, WA 6102, Australia.; Yang, SZ (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. |
| 推荐引用方式 GB/T 7714 | Cheng, Y,Zhao, SY,Johannessen, B,et al. Atomically Dispersed Transition Metals on Carbon Nanotubes with Ultrahigh Loading for Selective Electrochemical Carbon Dioxide Reduction[J]. ADVANCED MATERIALS,2018,30(13):-. |
| APA | Cheng, Y.,Zhao, SY.,Johannessen, B.,Veder, JP.,Saunders, M.,...&Yang, SZ .(2018).Atomically Dispersed Transition Metals on Carbon Nanotubes with Ultrahigh Loading for Selective Electrochemical Carbon Dioxide Reduction.ADVANCED MATERIALS,30(13),-. |
| MLA | Cheng, Y,et al."Atomically Dispersed Transition Metals on Carbon Nanotubes with Ultrahigh Loading for Selective Electrochemical Carbon Dioxide Reduction".ADVANCED MATERIALS 30.13(2018):-. |
入库方式： OAI收割
来源：金属研究所
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