| In-Situ FT-IR Investigation of Partial Oxidation of Methane to Syngas over Rh/SiO_2 Catalyst |
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| 作者单位： | Tinghua Wu~(1*) Dongmin Lin~1 Ying Wu~1 Xiaoping Zhou~1 Qiangu Yan~(2，3) Weizheng Weng~(1，2) Huilin Wan~(1，2) 1.Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces，Institute of Physical Chemistry，Zhejiang Normal University，Jinhua 321004，Zhejiang，China 2.State Key Laboratory for Physical Chemistry of Solid Surfaces，Xiamen University，Xiamen 361005，Fujian，China 3.Center for Advanced Vehicular Systems，Box 5405，Mississippi State University，Starkville，MS39762，USA |
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| 基金项目： | the Ministry of Science and Technology of Zhejiang Province，浙江省自然科学基金，国家自然科学基金 |
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| 摘 要： | Partial oxidation of methane to syngas(POM)over Rh/SiO_2 catalyst was investigated using in-situ FT-IR.When methane interacted with 1.0wt%Rh/SiO_2 catalyst,it was dissociated to adsorbed hydrogen and CH_x species.The adsorbed hydrogen atoms were transferred to SiO_2 surface by"spill-over"and reacted with lattice oxygen to form surface -OH species. POM mechanism was investigated over Rh/SiO_2 catalyst using in-situ FT-IR.It was found that CO_2 was formed before CO could be detected when CH_4 and O_2 were introduced over the preoxidized Rh/SiO_2 catalyst,whereas CO was detected before CO_2 was formed over the prereduced Rh/SiO_2 catalyst.
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In-Situ FT-IR Investigation of Partial Oxidation of Methane to Syngas over Rh/SiO2 Catalyst |
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| Tinghua Wu,Dongmin Lin,Ying Wu,Xiaoping Zhou,Qiangu Yan,Weizheng Weng,Huilin Wan. In-Situ FT-IR Investigation of Partial Oxidation of Methane to Syngas over Rh/SiO2 Catalyst[J]. Journal of Natural Gas Chemistry, 2007, 16(3) |
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| Authors: | Tinghua Wu Dongmin Lin Ying Wu Xiaoping Zhou Qiangu Yan Weizheng Weng Huilin Wan |
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| Abstract: | Partial oxidation of methane to syngas(POM)over Rh/SiO_2 catalyst was investigated using in-situ FT-IR.When methane interacted with 1.0wt%Rh/SiO_2 catalyst,it was dissociated to adsorbed hydrogen and CH_x species.The adsorbed hydrogen atoms were transferred to SiO_2 surface by"spill-over"and reacted with lattice oxygen to form surface -OH species. POM mechanism was investigated over Rh/SiO_2 catalyst using in-situ FT-IR.It was found that CO_2 was formed before CO could be detected when CH_4 and O_2 were introduced over the preoxidized Rh/SiO_2 catalyst,whereas CO was detected before CO_2 was formed over the prereduced Rh/SiO_2 catalyst. |
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| Keywords: | partial oxidation syngas Rh/SiO_2 catalyst in-situ FT-IR |
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