[原分所] IAMS Lecture Announcement on Oct 17, - 2:00 pm (Prof. Xinhe Bao 包信和院士) & 3:30 pm (Prof. Jhih-Wei Chu 朱智瑋教授)
消息來源：中研院原分所
截止日期：2013-10-17
IAMS Lecture Announcement 中研院原分所演講公告
Title: Direct conversion of Methane for Value-Added Chemicals
Speaker: Prof. Xinhe Bao (Dalian Institute of Chemical Physics, The Chinese Academy of Sciences)包信和院士 (中國科學院 大連化學物理研究所)
Time: 2:00 PM, October 17 (Thursday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Shang-Bin Liu 劉尚斌博士
Abstract:
Methane is the simplest and smallest hydrocarbon molecule, and an important task confronting catalytic chemists is how to realize direct conversion of methane to versatile fuels and valuable chemicals by building up the desired C–C (or C–O) bond. In the present talk, the attention will be paid mainly on the current progress of methane dehydro-aromatization over zeolite-supported molybdenum catalysts, which were initiated and have been developed in DICP since 1993. In recent years, this process has been intensively investigated, and a large number of catalyst components have been carefully screened. HMCM-22, a zeolite with a unique structure and dual pore systems, has been found to be a quite effective carrier for replacing the traditional HZSM-5 zeolite as a support for Mo species. The selectivity to light aromatics can reach 80% at a methane conversion of 10-12% at 700℃. Several special procedures for catalyst pretreatment have been developed, i.e. dealuminization of zeolites and alkali etching, which significantly improve the catalytic performance. In the meanwhile, the relevant fundamental research is mainly focused on determining the location of active Mo species, understanding the effects of channel structure and elucidating the overall reaction mechanisms, particularly, the formation mechanism of the first aromatics ring in the zeolitic channels. A direct observation of different types of molybdenum species on fresh and working Mo/zeolite catalysts by solid-state NMR is realized on an ultrahigh field NMR spectrometer. Coupling with the reaction data, it can be concluded that the exchanged Mo species are the active centers for the MDA reaction.
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IAMS Lecture Announcement 中研院原分所演講公告
Title: Multiscale Simulation for Mechanisitc Understanding of Biomolecular Systems: Cellulases in Cellulose Decomposition
Speaker: Prof. Jhih-Wei Chu (Dept. of Biological Science and Technology, National Chiao Tung Univ.)朱智瑋教授 (交通大學生物科技系)
Time: 3:30 PM, October 17 (Thursday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Kaito Takahashi 高橋開人博士
Title: Direct conversion of Methane for Value-Added Chemicals
Speaker: Prof. Xinhe Bao (Dalian Institute of Chemical Physics, The Chinese Academy of Sciences)包信和院士 (中國科學院 大連化學物理研究所)
Time: 2:00 PM, October 17 (Thursday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Shang-Bin Liu 劉尚斌博士
Abstract:
Methane is the simplest and smallest hydrocarbon molecule, and an important task confronting catalytic chemists is how to realize direct conversion of methane to versatile fuels and valuable chemicals by building up the desired C–C (or C–O) bond. In the present talk, the attention will be paid mainly on the current progress of methane dehydro-aromatization over zeolite-supported molybdenum catalysts, which were initiated and have been developed in DICP since 1993. In recent years, this process has been intensively investigated, and a large number of catalyst components have been carefully screened. HMCM-22, a zeolite with a unique structure and dual pore systems, has been found to be a quite effective carrier for replacing the traditional HZSM-5 zeolite as a support for Mo species. The selectivity to light aromatics can reach 80% at a methane conversion of 10-12% at 700℃. Several special procedures for catalyst pretreatment have been developed, i.e. dealuminization of zeolites and alkali etching, which significantly improve the catalytic performance. In the meanwhile, the relevant fundamental research is mainly focused on determining the location of active Mo species, understanding the effects of channel structure and elucidating the overall reaction mechanisms, particularly, the formation mechanism of the first aromatics ring in the zeolitic channels. A direct observation of different types of molybdenum species on fresh and working Mo/zeolite catalysts by solid-state NMR is realized on an ultrahigh field NMR spectrometer. Coupling with the reaction data, it can be concluded that the exchanged Mo species are the active centers for the MDA reaction.
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IAMS Lecture Announcement 中研院原分所演講公告
Title: Multiscale Simulation for Mechanisitc Understanding of Biomolecular Systems: Cellulases in Cellulose Decomposition
Speaker: Prof. Jhih-Wei Chu (Dept. of Biological Science and Technology, National Chiao Tung Univ.)朱智瑋教授 (交通大學生物科技系)
Time: 3:30 PM, October 17 (Thursday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Kaito Takahashi 高橋開人博士