The short-channel function of hollow carbon nanoparticles as support in the dehydrogenation of cyclohexane

被引:25
作者
Du, Jianping [1 ]
Zhao, Ruihua [1 ]
Jiao, Gaorong [2 ]
机构
[1] Taiyuan Univ Technol, Taiyuan 030024, Peoples R China
[2] China Coal Res Inst, Taiyuan Branch, Taiyuan 030006, Peoples R China
关键词
Hollow carbon nanoparticles; Short channel; Pt catalyst; Cyclohexane dehydrogenation; CATALYTIC DEHYDROGENATION; HYDROGEN GENERATION; COKE FORMATION; NANOTUBES; METHYLCYCLOHEXANE; SURFACE;
D O I
10.1016/j.ijhydene.2013.03.064
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The structure function of hollow carbon nanoparticles (HCNP) as support of Pt particles in the dehydrogenation of cyclohexane was studied. The catalysts and supports were characterized by the XRD, TEM, TG-MS and N-2 adsorption/desorption technologies. The results indicated that the short-channel of HCNP can improve the activity and stability of Pt/HCNP, which was confirmed and explained by the temperature programmed desorption (TPD) experiments. The extent of coke deposited on HCNP was much less than that on MCNT, which can be attributed to fast diffusion and quick removal of benzene from active sites through the short path of HCNP. The HCNP with short channel is very important for improving catalyst performance in the storage system of liquid organic hydrides. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:5789 / 5795
页数:7
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