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Layered Double Hydroxides Derived ZnO-Al2O3 Supported Pd-Ag Catalysts for Selective Hydrogenation of Acetylene
Gao, Xiaoping; Zhou, Yanan; Jing, Fangli; Luo, Jingjie; Huang, Qingsong; Chu, Wei; Jing, FL (reprint author), Sichuan Univ, Sch Chem Engn, Chengdu 610065, Sichuan, Peoples R China.; Jing, FL (reprint author), Sichuan Univ, Inst New Energy & Low Carbon Technol, Chengdu 610207, Sichuan, Peoples R China.
2017-06-01
发表期刊CHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
卷号35期号:6页码:1009-1015
摘要ZnO-Al2O3 derived from layered double hydroxides (ZnAl-LDH) was successfully applied for dispersion of Pd-Ag bimetallic catalysts for the selective hydrogenation of acetylene to ethylene and the Pd-Ag/ZnO-Al2O3 catalyst showed the best catalytic performance among the prepared samples. It was found that the catalyst carrier of ZnO-Al2O3 metal-oxides derived form ZnAl-LDH could significantly suppress the over-hydrogenation of acetylene to obtain the relatively higher selectivity of ethylene. The introduction of Ag restricted efficiently the formation of coke because of the oligomerization reaction, which was further evidenced by thermal gravimetric analysis. The selectivity towards ethylene was in the order of Pd-Ag/ZnO-Al2O3>Pd/ZnO-Al2O3>Pd-Ag/Al2O3>Pd/Al2O3 at a high conversion level. As the thermal gravimetric and differential temperature analysis (TG-DTA) revealed, Pd-Ag intermetallic catalyst on the ZnO-Al2O3 support showed less coke formation.; ZnO-Al2O3 derived from layered double hydroxides (ZnAl-LDH) was successfully applied for dispersion of Pd-Ag bimetallic catalysts for the selective hydrogenation of acetylene to ethylene and the Pd-Ag/ZnO-Al2O3 catalyst showed the best catalytic performance among the prepared samples. It was found that the catalyst carrier of ZnO-Al2O3 metal-oxides derived form ZnAl-LDH could significantly suppress the over-hydrogenation of acetylene to obtain the relatively higher selectivity of ethylene. The introduction of Ag restricted efficiently the formation of coke because of the oligomerization reaction, which was further evidenced by thermal gravimetric analysis. The selectivity towards ethylene was in the order of Pd-Ag/ZnO-Al2O3>Pd/ZnO-Al2O3>Pd-Ag/Al2O3>Pd/Al2O3 at a high conversion level. As the thermal gravimetric and differential temperature analysis (TG-DTA) revealed, Pd-Ag intermetallic catalyst on the ZnO-Al2O3 support showed less coke formation.
部门归属[gao, xiaoping ; zhou, yanan ; jing, fangli ; huang, qingsong ; chu, wei] sichuan univ, sch chem engn, chengdu 610065, sichuan, peoples r china ; [gao, xiaoping ; jing, fangli ; chu, wei] sichuan univ, inst new energy & low carbon technol, chengdu 610207, sichuan, peoples r china ; [luo, jingjie] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china
关键词Znal-ldh Pd Catalyst Ag Promoter Acetylene Selective Hydrogenation High Selectivity
学科领域Chemistry, Multidisciplinary
资助者National Natural Science Foundation of China [21476145]; China Cheng Da Engineering Co., Ltd
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78101
专题中国科学院金属研究所
通讯作者Jing, FL (reprint author), Sichuan Univ, Sch Chem Engn, Chengdu 610065, Sichuan, Peoples R China.; Jing, FL (reprint author), Sichuan Univ, Inst New Energy & Low Carbon Technol, Chengdu 610207, Sichuan, Peoples R China.
推荐引用方式
GB/T 7714
Gao, Xiaoping,Zhou, Yanan,Jing, Fangli,et al. Layered Double Hydroxides Derived ZnO-Al2O3 Supported Pd-Ag Catalysts for Selective Hydrogenation of Acetylene[J]. CHINESE JOURNAL OF CHEMISTRY,2017,35(6):1009-1015.
APA Gao, Xiaoping.,Zhou, Yanan.,Jing, Fangli.,Luo, Jingjie.,Huang, Qingsong.,...&Jing, FL .(2017).Layered Double Hydroxides Derived ZnO-Al2O3 Supported Pd-Ag Catalysts for Selective Hydrogenation of Acetylene.CHINESE JOURNAL OF CHEMISTRY,35(6),1009-1015.
MLA Gao, Xiaoping,et al."Layered Double Hydroxides Derived ZnO-Al2O3 Supported Pd-Ag Catalysts for Selective Hydrogenation of Acetylene".CHINESE JOURNAL OF CHEMISTRY 35.6(2017):1009-1015.
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