CAS OpenIR
Calcined ZnNiAl hydrotalcite-like compounds as bifunctional catalysts for carbonyl sulfide removal
Zhao, SZ; Yi, HH; Tang, XL; Kang, DJ; Gao, FY; Wang, JG; Huang, YH; Yang, ZY; Zhao, Shunzheng; Yi, Honghong; Tang, Xiaolong; Kang, Dongjuan; Gao, Fengyu; Wang, Jiangen; Huang, Yonghai; Yang, Zhongyu
2019
Source PublicationCATALYSIS TODAY
ISSN0920-5861
Volume327Pages:161
AbstractThe demand for a healthy environment and clean energy has been triggering the study on the preparation of excellent catalysts for the removal of sulfur-containing compounds. In this work, the removal of carbonyl sulfide (COS) from gas streams using Zn/Ni/Al hydrotalcite-derived oxide (HTO) was investigated. In particular, the structure, acid-base properties, and catalytic activity of catalysts prepared under different conditions were measured. A combination of experimental and theoretical methods, including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), CO2 temperature programmed desorption (TPD), N-2 adsorption-desorption techniques, and density functional theory calculations, were used to elucidate the removal of COS use Zn/Ni/Al HTO. Experimental results indicated that Zn/Ni/Al HTO had relatively high activity for the removal of COS. The density functional theory calculations revealed that "many defects" existed on the Ni3AlO4 (001) plane of crystal, which brought more active centers for the chemical adsorption and hydrolysis of COS. Elemental sulfur, metal sulfide, and sulfate were the final product of COS removal. The consumption of basic sites, as well as the blocking of pores, was considered as the main reason for catalyst deactivation.
KeywordCarbonyl sulfide HIGHLY EFFICIENT Hydrotalcite-like compounds CO OXIDATION Mixed metal oxides MIXED OXIDES Deactivation METAL REDUCTION NO ADSORPTION CHEMISTRY CAPACITY STRATEGY
SubtypeArticle; Proceedings Paper
DOI10.1016/j.cattod.2018.05.011
WOS IDWOS:000459892900017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28224
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Zhao, SZ,Yi, HH,Tang, XL,et al. Calcined ZnNiAl hydrotalcite-like compounds as bifunctional catalysts for carbonyl sulfide removal[J]. CATALYSIS TODAY,2019,327:161, 167.
APA Zhao, SZ.,Yi, HH.,Tang, XL.,Kang, DJ.,Gao, FY.,...&Yang, Zhongyu.(2019).Calcined ZnNiAl hydrotalcite-like compounds as bifunctional catalysts for carbonyl sulfide removal.CATALYSIS TODAY,327,161.
MLA Zhao, SZ,et al."Calcined ZnNiAl hydrotalcite-like compounds as bifunctional catalysts for carbonyl sulfide removal".CATALYSIS TODAY 327(2019):161.
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