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题名: Origin of the Robust Catalytic Performance of Nanodiamond Graphene-Supported Pt Nanoparticles Used in the Propane Dehydrogenation Reaction
作者: Liu, Jie;  Yue, Yuanyuan;  Liu, Hongyang;  Da, Zhijian;  Liu, Changcheng;  Ma, Aizeng;  Rong, Junfeng;  Su, Dangsheng;  Bao, Xiaojun;  Zheng, Huidong
发表日期: 2017-5-1
摘要: Nanocarbon-supported Pt nanoparticles (NPs) were prepared and tested for the propane dehydrogenation reaction (PDH). The nanocarbon support is composed of a nanodiamond core and a defective, ultrathin graphene nanoshell (ND@G). The Pt/ND@G catalyst experienced slight deactivation during the 100 h PDH test, while the Pt/Al2O3 catalyst showed severe deactivation after the 20 h PDH test. Pt NPs exhibited superior sintering resistance versus that of the ND@G support. This particular support structure of ND@G allows electrons on the defects to transfer to the Pt NPs, leading to a strong metal-support interaction, which significantly prevents Pt NP sintering and promotes the desorption of electron-rich propylene. This electron transfer mechanism was also confirmed by a CO catalytic oxidation test.
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Recommended Citation:
Liu, Jie,Yue, Yuanyuan,Liu, Hongyang,et al. Origin Of The Robust Catalytic Performance Of Nanodiamond Graphene-supported Pt Nanoparticles Used In The Propane Dehydrogenation Reaction[J]. Acs Catalysis,2017,7(5):3349-3355.

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