多活性中心协同加氢纳米催化剂的设计和制备

doi:10.11949/j.issn.0438-1157.20150702

摘要/Abstract

摘要：

基于催化剂多活性中心分工协同作用可活化两种或多种反应物,本研究工作以一种新的制备策略对贵金属-过渡金属-过渡金属氧化物催化剂进行合理设计,构筑金属与金属氧化物双活性中心。结果发现,贵金属负载于过渡金属/过渡金属氧化物(NM-TM/TMO)结构的催化剂在加氢反应中具有优异的催化活性。同时,热处理方法可有效调控催化剂微观结构,并对此构效关系进行了较为深入的研究。

关键词: 纳米催化剂, 分工协同, 加氢, 构效关系

Abstract:

As synergic multiple active sites catalysts can theoretically activate two or more reactant or substrates simultaneously resulting in significantly increase of activity and stability of catalysts, we herein develop a novel catalysts preparation strategy to design and construct noble metal-transition metal-transition metal oxide (NM-TM/TMO) to form bi-active catalytic sites. The experimental results show that such a catalyst has excellent performance in catalytic hydrogenation, e.g. aromatic compounds hydrogenation as the case studies. It was also found that the nanostructure of catalyst can be tuned via thermal treatments, which are investigated and the relationship between structure and activity is explored to some extent.

Key words: nanocatalyst, synergistic, hydrogenation, relationship of nanostructure-activity

中图分类号:

O643.38

朱丽华, 孙菡蕾, 曹志凯, 郑进保, 张诺伟, 陈秉辉. 多活性中心协同加氢纳米催化剂的设计和制备[J]. 化工学报, 2015, 66(8): 3091-3097.

ZHU Lihua, SUN Hanlei, CAO Zhikai, ZHENG Jinbao, ZHANG Nuowei, CHEN Binghui. Design and synthesis of hydrogenation nanocatalyst with synergetic multiple catalytic sites[J]. CIESC Journal, 2015, 66(8): 3091-3097.

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