Particle Size Effects of Cobalt Carbide for Fischer-Tropsch to Olefins
文献类型：期刊论文
| 作者 | Dai, YY; Zhao, YH; Lin, TJ; Li, SG; Yu, F; An, YL; Wang, XX; Xiao, K; Sun, FF; Jiang, Z |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2019 |
| 卷号 | 9期号:2页码:798—809 |
| 关键词 | IRON CATALYSTS SUSTAINABLE PRODUCTION INTRINSIC ACTIVITY MORPHOLOGY CONTROL SYNTHESIS GAS NANOPARTICLES SUPPORT SODIUM SYNGAS PERFORMANCE |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/acscatal.8b03631 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Particle size effects of the cobalt carbide (Co2C) catalyst on its catalytic performance for Fischer-Tropsch to olefins were investigated. When the Co2C nanoparticles were smaller than 7 nm, increasing the particle size led to enhanced intrinsic activity based on the turnover frequency (TOF), higher selectivity to lower olefins, higher ratio of olefin to paraffin, and lower methane selectivity. However, when the Co2C nanoparticles were larger than 7 nm, both intrinsic activity and product selectivity did not depend on the particle size. Further kinetic studies showed that both the apparent activation energy and the reaction order of H-2 decreased, while the reaction order of CO increased with decreasing Co2C particle size when the size was smaller than 7 nm. In contrast, these kinetic parameters were nearly constant when the Co2C particle size was larger than 7 nm. Theoretical analysis revealed a strong correlation between the exposed facets and Co2C particle sizes, leading to the observed dependence of catalytic performance on the catalyst particle size. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31752]  |
| 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, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201203, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China; 4.Nanjing Univ Posts & Telecommun, Sch Mat Sci & Engn, Nanjing 210024, Jiangsu, Peoples R China; 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, YY,Zhao, YH,Lin, TJ,et al. Particle Size Effects of Cobalt Carbide for Fischer-Tropsch to Olefins[J]. ACS CATALYSIS,2019,9(2):798—809. |
| APA | Dai, YY.,Zhao, YH.,Lin, TJ.,Li, SG.,Yu, F.,...&Sun, YH.(2019).Particle Size Effects of Cobalt Carbide for Fischer-Tropsch to Olefins.ACS CATALYSIS,9(2),798—809. |
| MLA | Dai, YY,et al."Particle Size Effects of Cobalt Carbide for Fischer-Tropsch to Olefins".ACS CATALYSIS 9.2(2019):798—809. |
入库方式： OAI收割
来源：上海应用物理研究所
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