Hydrogen production by catalytic decalin dehydrogenation over carbon-supported platinum catalyst: Effect of catalyst preparation method
Hydrogen production by catalytic decalin dehydrogenation over carbon-supported platinum catalyst: Effect of catalyst preparation method
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DOI：
10.1016/j.catcom.2015.04.002
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发表时间：
2015-07
影响因子：
3.7
通讯作者：
Gihoon Lee;Yeojin Jeong;Bong-Geun Kim;Jin Han;Heondo Jeong;H. Na;J. Jung
中科院分区：
文献类型：
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作者：
Gihoon Lee;Yeojin Jeong;Bong-Geun Kim;Jin Han;Heondo Jeong;H. Na;J. Jung
制备方法对铂在碳载铂催化剂中的分散度影响很大，从而影响其在十氢萘脱氢反应中的催化活性。采用离子交换法或多元醇法制备的催化剂在初始析氢速率和总析氢量方面均优于采用浸渍法或沉淀法制备的催化剂。铂的分散度是决定催化剂活性的关键因素，离子交换法和多元醇法制备的催化剂铂分散度高，催化活性高。
Preparation method strongly affected the platinum dispersion of carbon-supported platinum catalysts, and accordingly, their catalytic activity in the decalin dehydrogenation. The catalyst prepared by an advanced method (ion-exchange method or polyol method) exhibited a better catalytic performance than that prepared by a conventional method (impregnation method or precipitation method) in terms of initial hydrogen evolution rate and total amount of hydrogen evolution. Platinum dispersion played a key role in determining the catalytic activity in this reaction, and thus, the high platinum dispersion of the catalysts prepared by an ion-exchange method and a polyol method resulted in their high catalytic activity.