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2007•INDIAN JOURNAL OF CHEMISTRY- SECTION ARequires access

Effect of supports on HDS activity of Au-Pd catalysts

Zhonghua Gu, Laitao Luo, Meiling Teng

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Abstract

The Au-Pd catalysts have been used successfully for thiophene hydrodesulfurization (HDS). The effects of Al2O3, TiO2-Al2O3, ZrO2-Al2O3 and CeO2-Al2O3 supports on HDS activities of Au-Pd catalysts have been investigated. The results show that Au-Pd catalysts supported on mixed oxide exhibit much higher HDS activity and stability than that of the AuPd/Al2O3 catalyst. TiO2-Al2O3 is the best support among these mixed oxides. As compared with Au-Pd/Al2O3 catalyst, AuPd/TiO2-Al2O3 catalyst has higher acid density and acid strength, and active surface area to absorb higher amounts of H2 and

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The Au-Pd catalysts have been used successfully for thiophene hydrodesulfurization (HDS). The effects of Al2O3, TiO2-Al2O3, ZrO2-Al2O3 and CeO2-Al2O3 supports on HDS activities of Au-Pd catalysts have been investigated. The results show that Au-Pd catalysts supported on mixed oxide exhibit much higher HDS activity and stability than that of the AuPd/Al2O3 catalyst. TiO2-Al2O3 is the best support among these mixed oxides. As compared with Au-Pd/Al2O3 catalyst, AuPd/TiO2-Al2O3 catalyst has higher acid density and acid strength, and active surface area to absorb higher amounts of H2 and

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Available abstract

The Au-Pd catalysts have been used successfully for thiophene hydrodesulfurization (HDS). The effects of Al2O3, TiO2-Al2O3, ZrO2-Al2O3 and CeO2-Al2O3 supports on HDS activities of Au-Pd catalysts have been investigated. The results show that Au-Pd catalysts supported on mixed oxide exhibit much higher HDS activity and stability than that of the AuPd/Al2O3 catalyst. TiO2-Al2O3 is the best support among these mixed oxides. As compared with Au-Pd/Al2O3 catalyst, AuPd/TiO2-Al2O3 catalyst has higher acid density and acid strength, and active surface area to absorb higher amounts of H2 and

Key concepts: Catalysis, Hydrodesulfurization, Thiophene, Catalyst support, Oxide, Inorganic chemistry, Materials science, Chemistry

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