Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal

doi:10.1016/j.matchemphys.2017.11.002

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	Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal
	Zhao, Shunzheng 1,2; Yi, Honghong 1,2; Tang, Xiaolong 1,2; Kang, Dongjuan 3; Yu, Qingjun 1,2; Gao, Fengyu 1; Wang, Jiangen 1; Huang, Yonghai 1; Yang, Zhongyu 1
刊名	MATERIALS CHEMISTRY AND PHYSICS
	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)
内容类型	期刊论文
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.