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 | Zheng LR(郑黎荣) ; Cheng, QP; Tian, Y; Lyu, SS; Zhao, N; Ma, K; Ding, T; Jiang, Z; Wang, LH; Zhang, J
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| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2018 |
| 卷号 | 9页码:3250 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/s41467-018-05755-8 |
| 文献子类 | Article |
| 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. |
| WOS关键词 | GASOLINE-RANGE HYDROCARBONS ; PARTICLE-SIZE ; SUPPORTED COBALT ; SHELL THICKNESS ; PORE-SIZE ; SELECTIVITY ; NANOPARTICLES ; PERFORMANCE ; REDUCTION ; MECHANISM |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000441518800004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286208]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zheng LR,Cheng, QP,Tian, Y,et al. Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis[J]. NATURE COMMUNICATIONS,2018,9:3250. |
| APA | 郑黎荣.,Cheng, QP.,Tian, Y.,Lyu, SS.,Zhao, N.,...&张静.(2018).Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis.NATURE COMMUNICATIONS,9,3250. |
| MLA | 郑黎荣,et al."Confined small-sized cobalt catalysts stimulate carbon-chain growth reversely by modifying ASF law of Fischer-Tropsch synthesis".NATURE COMMUNICATIONS 9(2018):3250. |
入库方式： OAI收割
来源：高能物理研究所
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