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Mechanism of activity enhancement of the Ni based hydrotalcite-derived materials in carbonyl sulfide removal
Zhao, Shunzheng1,2; Yi, Honghong1,2; Tang, Xiaolong1,2; Kang, Dongjuan3; Yu, Qingjun1,2; Gao, Fengyu1; Wang, Jiangen1; Huang, Yonghai1; Yang, Zhongyu1
2018-02-01
发表期刊MATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
卷号205页码:35-43
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.
关键词Coal Gas Purification Organic Sulfur Hydrotalcite-derived Oxides Xafs Drifts Dft
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.matchemphys.2017.11.002
收录类别SCI
语种英语
关键词[WOS]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
WOS类目Materials Science, Multidisciplinary
项目资助者China Postdoctoral Science Foundation(2016M600045) ; Fundamental Research Funds for the Central Universities(FRF-TP-16-060A1)
WOS记录号WOS:000424174900006
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24048
专题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
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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.
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