caa a22 4500 463251911 CHVBK 20180405153342.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10562-007-9232-4 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9232-4 Enhanced Stability of HZSM-5 Supported Ga2O3 Catalyst in Propane Dehydrogenation by Dealumination [Elektronische Daten] [Bingjun Xu, Tao Li, Bo Zheng, Weiming Hua, Yinghong Yue, Zi Gao] Gallium oxide catalysts supported on HZSM-5 with different Si/Al ratios were characterized by pyridine adsorption FT-IR, model reactions and XPS studies. As the Si/Al ratio of the support HZSM-5 zeolite rises, the acidity of the supported catalysts decreases accordingly, which comes from two aspects: the loss of acid sites present on HZSM-5 support and the loss of the acid sites present on gallium oxides. The latter was caused by the change in the interaction between Ga2O3 and support. The initial activity in the propane dehydrogenation decreases with increasing Si/Al ratio while the stability increases. The enhanced stability is thought to be caused by the decrease of the acidity of the catalysts, resulting in the suppression of the side reactions, such as cracking and oligomerization. Springer Science+Business Media, LLC, 2007 Ga2O3/HZSM-5 nationallicence Propane nationallicence Dehydrogenation nationallicence Acidity nationallicence Stability nationallicence Xu Bingjun Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut Li Tao Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut Zheng Bo Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut Hua Weiming Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut Yue Yinghong Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut Gao Zi Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut Catalysis Letters Springer US; http://www.springer-ny.com 119/3-4(2007-12-01), 283-288 1011-372X 119:3-4<283 2007 119 10562 https://doi.org/10.1007/s10562-007-9232-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9232-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Bingjun Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Li Tao Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Zheng Bo Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Hua Weiming Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Yue Yinghong Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Gao Zi Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433, Shanghai, P.R. China aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 119/3-4(2007-12-01), 283-288 1011-372X 119:3-4<283 2007 119 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer