Bifunctional Nitrogen and Cobalt Codoped Hollow Carbon for Electrochemical Syngas Production
文献类型：期刊论文
| 作者 | Song, XK; Zhang, H; Yang, YQ; Zhang, B; Zuo, M; Cao, X; Sun, JH; Lin, C; Li, XP; Jiang, Z |
| 刊名 | ADVANCED SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 5期号:7页码:- |
| ISSN号 | 2198-3844 |
| 关键词 | METAL-ORGANIC FRAMEWORKS OXYGEN REDUCTION REACTION BRILLOUIN-ZONE INTEGRATIONS INITIO MOLECULAR-DYNAMICS EFFICIENT ELECTROREDUCTION CO2 REDUCTION ACTIVE-SITES CATALYSTS GRAPHENE ELECTROCATALYSTS |
| DOI | 10.1002/advs.201800177 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Electrochemical conversion of CO2 and H2O into syngas is an attractive route to utilize green electricity. A competitive system economy demands development of cost-effective electrocatalyst with dual active sites for CO2 reduction reaction (CO2RR) and hydrogen evolution reaction (HER). Here, a single atom electrocatalyst derived from a metal-organic framework is proposed, in which Co single atoms and N functional groups function as atomic CO2RR and HER active sites, respectively. The synthesis method is based on pyrolysis of ZnO@ZIF (zeolitic imidazolate framework). The excess in situ Zn evaporation effectively prevents Co single atoms (approximate to 3.4 wt%) from aggregation and maintains appropriate Co/N ratio. The as-prepared electrocatalyst is featured with high graphitic degree of carbon support for rapid electron transport and sponge-like thin carbon shells with hierarchical pore system for facilitating active site exposure and mass transport. Therefore, the electrocatalyst exhibits a nearly 100% Faradic efficiency and a high formation rate of approximate to 425 mmol g(-1) h(-1) at 1.0 V with the gaseous product ratio (CO/H-2) approximating ideal 1/2. With the assistance of an extensive material characterization and density functional theory (DFT) calculations, it is identified that Co single atoms are uniformly coordinated in the form of Co-C2N2 moieties, and act as the major catalytic sites for CO2 reduction. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/30863]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China 2.Chinese Acad Sci, SARI, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 3.Jiangsu Univ Technol, Sch Chem & Environm Engn, Changzhou 213001, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 5.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, XK,Zhang, H,Yang, YQ,et al. Bifunctional Nitrogen and Cobalt Codoped Hollow Carbon for Electrochemical Syngas Production[J]. ADVANCED SCIENCE,2018,5(7):-. |
| APA | Song, XK.,Zhang, H.,Yang, YQ.,Zhang, B.,Zuo, M.,...&Jiang, Z.(2018).Bifunctional Nitrogen and Cobalt Codoped Hollow Carbon for Electrochemical Syngas Production.ADVANCED SCIENCE,5(7),-. |
| MLA | Song, XK,et al."Bifunctional Nitrogen and Cobalt Codoped Hollow Carbon for Electrochemical Syngas Production".ADVANCED SCIENCE 5.7(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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