Subsurface carbon modification of Ni-Ga for improved selectivity in acetylene hydrogenation reaction
文献类型：期刊论文
| 作者 | Dong, Shaoming1,2; Niu, Yiming1,2; Pu, Yinghui1,2; Wang, Yongzhao1,2; Zhang, Bingsen1,2 |
| 刊名 | CHINESE CHEMICAL LETTERS
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 35期号:12页码:4 |
| 关键词 | Subsurface structure Interstitial atom Carbide Hydrogenation reaction Nickel alloy |
| ISSN号 | 1001-8417 |
| DOI | 10.1016/j.cclet.2024.109525 |
| 通讯作者 | Niu, Yiming(ymniu14b@imr.ac.cn) ; Zhang, Bingsen(bszhang@imr.ac.cn) |
| 英文摘要 | Control of subsurface interstitial atoms in transition metals is an effective approach to modulate selectivity in hydrogenation reactions. In this study, nickel was alloyed with gallium to form Ni-3 Ga, thereby regulating the octahedral interstitial sites. Subsequently, carbon atoms were introduced into the Ni3 Ga (forming Ni-3 GaC0.5 ) via thermal treatment in an acetylene atmosphere, leading to a significant enhancement in selectivity for acetylene hydrogenation reaction. The X-ray diffraction and transmission electron microscopy results demonstrate an increase in the lattice parameter due to the incorporation of carbon atoms and the uniform distribution of carbon in Ni-3 GaC0.5 nanoparticles. The obtained Ni-3 GaC0.5 /oCNT catalyst exhibits significantly improved selectivity in acetylene hydrogenation reaction, with approximately 82% ethylene selectivity at 98% conversion. Furthermore, it maintains good selectivity at various hydrogen-to-alkyne ratios and displays good stability during long-term operation. The introduction of carbon suppresses the formation of the subsurface hydrogen structure under reaction conditions. Additionally, the charge transfer between carbon and nickel results in the electron deficiency of nickel, effectively inhibiting the over-hydrogenation pathway and enhancing the selectivity. These results provide insights for the design of non-precious metal catalysts in selective hydrogenation reactions. (c) 2024 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. |
| 资助项目 | National Natural Science Foundation of China[22002173] ; National Natural Science Foundation of China[22072164] ; National Natural Science Foundation of China[52161145403] ; Natural Science Foundation of Liaoning Province[2022-MS-004] ; China Postdoctoral Science Foundation[2020M680999] ; LiaoNing Revitalization Talents Program[XLYC1807175] ; Foundations of Shenyang National Laboratory for Materials Science |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001314387200001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; China Postdoctoral Science Foundation ; LiaoNing Revitalization Talents Program ; Foundations of Shenyang National Laboratory for Materials Science |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Niu, Yiming; Zhang, Bingsen |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Shaoming,Niu, Yiming,Pu, Yinghui,et al. Subsurface carbon modification of Ni-Ga for improved selectivity in acetylene hydrogenation reaction[J]. CHINESE CHEMICAL LETTERS,2024,35(12):4. |
| APA | Dong, Shaoming,Niu, Yiming,Pu, Yinghui,Wang, Yongzhao,&Zhang, Bingsen.(2024).Subsurface carbon modification of Ni-Ga for improved selectivity in acetylene hydrogenation reaction.CHINESE CHEMICAL LETTERS,35(12),4. |
| MLA | Dong, Shaoming,et al."Subsurface carbon modification of Ni-Ga for improved selectivity in acetylene hydrogenation reaction".CHINESE CHEMICAL LETTERS 35.12(2024):4. |
入库方式： OAI收割
来源：金属研究所
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