Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis
文献类型：期刊论文
| 作者 | Cheng, QP; Tian, Y; Lyu, SS; Zhao, N; Ma, K; Ding, T; Jiang, Z; Wang, LH; Zhang, J; Zheng, LR |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2018 |
| 卷号 | 9期号:-页码:- |
| 关键词 | GASOLINE-RANGE HYDROCARBONS PARTICLE-SIZE SUPPORTED COBALT SHELL THICKNESS PORE-SIZE SELECTIVITY NANOPARTICLES PERFORMANCE REDUCTION MECHANISM |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/s41467-018-05755-8 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Fischer-Tropsch synthesis (FTS) is a promising technology to convert syngas derived from non-petroleum-based resources to valuable chemicals or fuels. Selectively producing target products will bring great economic benefits, but unfortunately it is theoretically limited by Anderson-Schulz-Flory (ASF) law. Herein, we synthesize size-uniformed cobalt nanocrystals embedded into mesoporous SiO2 supports, which is likely the structure of water-melon seeds inside pulps. We successfully tune the selectivity of products from diesel-range hydrocarbons (66.2%) to gasoline-range hydrocarbons (62.4%) by controlling the crystallite sizes of confined cobalt from 7.2 to 11.4 nm, and modify the ASF law. Generally, larger Co crystallites increase carbon-chain growth, producing heavier hydrocarbons. But here, we interestingly observe a reverse phenomenon: the uniformly small-sized cobalt crystallites can strongly adsorb active C* species, and the confined structure will inhibit aggregation of cobalt crystallites and escape of reaction intermediates in FTS, inducing the higher selectivity towards heavier hydrocarbons. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/30883]  |
| 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.Nanjing Univ, Ctr Modern Anal, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 21009, Jiangsu, Peoples R China 2.Tianjin Univ, Sch Chem Engn & Technol, Tianjin Key Lab Appl Catalysis Sci & Technol, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Beijing, Peoples R China 5.Univ Toyama, Sch Engn, Dept Appl Chem, Gofuku 3190, Toyama 9308555, Japan |
| 推荐引用方式 GB/T 7714 | Cheng, QP,Tian, Y,Lyu, SS,et al. Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis[J]. NATURE COMMUNICATIONS,2018,9(-):-. |
| APA | Cheng, QP.,Tian, Y.,Lyu, SS.,Zhao, N.,Ma, K.,...&Li, XG.(2018).Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis.NATURE COMMUNICATIONS,9(-),-. |
| MLA | Cheng, QP,et al."Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis".NATURE COMMUNICATIONS 9.-(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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