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Enhanced Chemoselective Hydrogenation through Tuning the Interaction between Pt Nanoparticles and Carbon Supports: Insights from Identical Location Transmission Electron Microscopy and X-ray Photoelectron Spectroscopy
Shi, W; Zhang, BS; Lin, YM; Wang, Q; Zhang, Q; Su, DS; Su, DS (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.; Su, DS (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China.
2016-11-01
发表期刊ACS CATALYSIS
ISSN2155-5435
卷号6期号:11页码:7844-7854
摘要Ultrasmall-sized platinum nanoparticles (Pt NPs) (similar to 1 nm) supported on carbon nanotubes (CNTs) with nitrogen doping and oxygen functional groups were synthesized and applied in the catalytic hydrogenation of nitroarenes. The advanced identical location transmission electron microscopy (IL-TEM) method was applied to probe the structure evolution of the Pt/CNT catalysts in the reaction. The results indicate that Pt NPs supported on CNTs with a high amount of nitrogen doping (Pt/H-NCNTs) afford 2-fold activity to that of Pt NPs supported on CNTs with oxygen functional groups (Pt/oCNTs) and 4-fold to that of the commercial Pt NPs supported on active carbon (Pt/C) catalyst toward nitrobenzene. The catalytic performance of Pt/H-NCNTs remained constant during four cycles, whereas the activity of the Pt/oCNTs was halved at the second cycle. Compared with Pt/oCNTs, Pt/H-NCNTs exhibited a higher selectivity (>99%) in chemoselective hydrogenation of halonitrobenzenes to haloanilines due to the electron-rich chemical state of Pt NPs. The strong metal support interaction along with the electron-donor capacity of nitrogen sites on H-NCNTs are capable of stabilizing the Pt NPs and achieving related catalytic recyclability as well as approximately 100% selectivity. The catalyst also delivers exclusively selective hydrogenation toward nitro groups for a wide scope of substituent nitroarenes into their corresponding anilines.
部门归属[shi, wen ; zhang, bingsen ; lin, yangming ; wang, qi ; su, dang sheng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [shi, wen ; zhang, bingsen ; lin, yangming ; wang, qi ; su, dang sheng] univ sci & technol china, sch mat sci & engn, hefei 230026, peoples r china ; [zhang, qiang] tsinghua univ, dept chem engn, beijing key lab green chem react engn & technol, beijing 100084, peoples r china
关键词Nitrogen Doping Il-tem Metal-support Interaction Platinum Nanoparticles Chemoselective Hydrogenation
学科领域Chemistry, Physical
资助者National Natural Science Foundation of China [91545119, 21203215, 21133010, 51221264, 21261160487]; Youth Innovation Promotion Association CAS [2015152]; Joint Foundation of Liaoning Province National Science Foundation [2015021011]; Shenyang National Laboratory for Materials Science [2015021011]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09030103]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76190
专题中国科学院金属研究所
通讯作者Zhang, BS; Su, DS (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.; Su, DS (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China.
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Shi, W,Zhang, BS,Lin, YM,et al. Enhanced Chemoselective Hydrogenation through Tuning the Interaction between Pt Nanoparticles and Carbon Supports: Insights from Identical Location Transmission Electron Microscopy and X-ray Photoelectron Spectroscopy[J]. ACS CATALYSIS,2016,6(11):7844-7854.
APA Shi, W.,Zhang, BS.,Lin, YM.,Wang, Q.,Zhang, Q.,...&Su, DS .(2016).Enhanced Chemoselective Hydrogenation through Tuning the Interaction between Pt Nanoparticles and Carbon Supports: Insights from Identical Location Transmission Electron Microscopy and X-ray Photoelectron Spectroscopy.ACS CATALYSIS,6(11),7844-7854.
MLA Shi, W,et al."Enhanced Chemoselective Hydrogenation through Tuning the Interaction between Pt Nanoparticles and Carbon Supports: Insights from Identical Location Transmission Electron Microscopy and X-ray Photoelectron Spectroscopy".ACS CATALYSIS 6.11(2016):7844-7854.
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