Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal
文献类型：期刊论文
| 作者 | Zhao, Shunzheng1,2; Yi, Honghong1,2; Tang, Xiaolong1,2; Kang, Dongjuan3; Yu, Qingjun1,2; Gao, Fengyu1; Wang, Jiangen1; Huang, Yonghai1; Yang, Zhongyu1 |
| 刊名 | MATERIALS CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 205页码:35-43 |
| 关键词 | Coal Gas Purification Organic Sulfur Hydrotalcite-derived Oxides Xafs Drifts Dft |
| ISSN号 | 0254-0584 |
| DOI | 10.1016/j.matchemphys.2017.11.002 |
| 文献子类 | Article |
| 英文摘要 | In this paper, a series of Ni based hydrotalcite-like compounds (HTLCs) were prepared by co-precipitation method. Carbonyl sulfide (COS) removal was investigated over the hydrotalcite-derived oxides (HTO). The properties of desulfurizer and its changes in the desulfurization process were systematically characterized by XRD, SEM, FTIR, CO2-TPD, XPS, XAFS and In-situ DRIFTS. The results showed that the activity series for removal of COS decrease in the following sequence: Ni3A1-HTO > Ni3Fe-HTO > Ni3Cr-HTO. In situ DRIFTS and quantum chemistry study implied that carbonate and sulfate was formed on the desulfurizer surface. Lewis basic sites and hydroxyl was determined to play a pivotal role for the COS removal. The enhanced activity after trivalent cations substitution is attributed to their high ability to provide electrons as evidenced by results of CO2-TPD, XPS and XAFS. This work is useful to explore feasible routes to improve the performance of desulfurization material for the feed gas purification. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | LAYERED DOUBLE HYDROXIDES ; AL MIXED OXIDES ; GGA PLUS U ; HETEROGENEOUS OXIDATION ; MAGNESIUM-OXIDE ; CATALYST ; TEMPERATURE ; ADSORPTION ; SURFACE ; HYDROLYSIS |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000424174900006 |
| 资助机构 | China Postdoctoral Science Foundation(2016M600045) ; Fundamental Research Funds for the Central Universities(FRF-TP-16-060A1) |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/24048]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China 2.Beijing Key Lab Resource Oriented Treatment Ind P, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Shunzheng,Yi, Honghong,Tang, Xiaolong,et al. Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal[J]. MATERIALS CHEMISTRY AND PHYSICS,2018,205:35-43. |
| APA | Zhao, Shunzheng.,Yi, Honghong.,Tang, Xiaolong.,Kang, Dongjuan.,Yu, Qingjun.,...&Yang, Zhongyu.(2018).Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal.MATERIALS CHEMISTRY AND PHYSICS,205,35-43. |
| MLA | Zhao, Shunzheng,et al."Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal".MATERIALS CHEMISTRY AND PHYSICS 205(2018):35-43. |
入库方式： OAI收割
来源：过程工程研究所
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