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	Dehydrogenation of propane over a hydrothermal-synthesized ga2o3-al2o3 catalyst in the presence of carbon dioxide
	Xiao, He1,2; Zhang, Junfeng1; Wang, Peng1,2; Wang, Xiaoxing1; Pang, Fei1,2; Zhang, Zhenzhou1,2; Tan, Yisheng1,3
刊名	Catalysis science & technology
	2016
卷号	6期号:13页码:5183-5195
ISSN号	2044-4753
DOI	10.1039/c5cy02161h
通讯作者	Tan, yisheng(tan@sxicc.ac.cn)
英文摘要	The hydrothermal synthesis method was adopted to prepare a highly active ga2o3-al2o3 catalyst (ga-hs), which displayed superior catalytic performance for dehydrogenation of propane to propylene in the presence of co2 (dhp-co2). the highest propane conversion on ga-hs was 35.2%, which was much higher than that from the catalysts prepared using the grind-mixture method (8.7%) or coprecipitation method (26.2%). moreover, propylene selectivity over the ga-hs catalyst was higher than that over the other catalysts in a period of 9 h of reaction. these catalysts were characterized by n-2 physical adsorption, icp-aes, xrd, tga, tem, sem, drift, py-ftir, nh3-tpd, xps, al-27 mas nmr and ga-71 mas nmr techniques. the characterization data indicated that the hydrothermal treatment increased the surface area, expanded the pore size and promoted the formation of more tetrahedral ga ions and the generation of more medium-strong lewis acid sites. furthermore, this catalyst mainly displayed an amorphous sponge-like morphology as well as a new morphology whereby some pieces were covered with amorphous nanoparticles. the superior activity of ga-hs was attributed to the higher surface area of this catalyst and the larger amount of tetrahedral ga ions (ga3+ and probably ga delta+ delta < 2) related to the medium-strong lewis acid sites.
WOS关键词	GALLIUM-LOADED CATALYSTS ; OXIDE-BASED CATALYSTS ; OXIDATIVE DEHYDROGENATION ; SURFACE-COMPOSITION ; MIXED OXIDES ; GA-71 NMR ; CO2 ; ETHANE ; XPS ; AROMATIZATION
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000378734700058
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374623
专题	中国科学院大学
通讯作者	Tan, Yisheng
作者单位	1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Engn Res Ctr Coal Based Synth, Taiyuan 030001, Peoples R China
推荐引用方式 GB/T 7714	Xiao, He,Zhang, Junfeng,Wang, Peng,et al. Dehydrogenation of propane over a hydrothermal-synthesized ga2o3-al2o3 catalyst in the presence of carbon dioxide[J]. Catalysis science & technology,2016,6(13):5183-5195.
APA	Xiao, He.,Zhang, Junfeng.,Wang, Peng.,Wang, Xiaoxing.,Pang, Fei.,...&Tan, Yisheng.(2016).Dehydrogenation of propane over a hydrothermal-synthesized ga2o3-al2o3 catalyst in the presence of carbon dioxide.Catalysis science & technology,6(13),5183-5195.
MLA	Xiao, He,et al."Dehydrogenation of propane over a hydrothermal-synthesized ga2o3-al2o3 catalyst in the presence of carbon dioxide".Catalysis science & technology 6.13(2016):5183-5195.

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