Fabrication of highly dispersed Pd nanoparticles supported on reduced graphene oxide for catalytic reduction of 4-nitrophenol
Fabrication of highly dispersed Pd nanoparticles supported on reduced graphene oxide for catalytic reduction of 4-nitrophenol
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还原氧化石墨烯负载高度分散的 Pd 纳米颗粒的制备用于催化还原 4-硝基苯酚
DOI：
10.1016/j.catcom.2016.11.021
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发表时间：
2017-02-01
影响因子：
3.7
通讯作者：
Wang, Chun
中科院分区：
文献类型：
--
作者：
Dong, Wenhuan;Cheng, Saisai;Wang, Chun
分散良好的超细金属纳米粒子可以显著提高多相催化剂的催化性能。本文以钴为牺牲剂，采用共沉积-牺牲法，成功地将高分散的Pd纳米粒子固定在还原的氧化石墨烯上。该方法能有效地防止Pd纳米粒子的团聚，所得到的催化剂在室温下以NaBH4为氢源对4-硝基苯酚的还原表现出极高的催化活性。在298K时，对硝基苯酚的转化率达到9900h(-1)，是迄今报道的常温下多相催化还原4-硝基苯酚的最高转化率之一。(C)2016年，由爱思唯尔出版。
Well-dispersed and ultrafine metal nanoparticles can significantly improve the catalytic performance of heterogeneous catalyst. In this paper, highly dispersed Pd nanoparticles were successful anchored on reduced graphene oxide using a co-deposition and sacrificial method, in which cobalt was used as the sacrificial agent. This method can effectively prevent the Pd nanoparticles from aggregation, and the resulted catalyst exhibited exceedingly high catalytic activity for the reduction of 4-nitrophenol at room temperature with NaBH4 as hydrogen resource. The turnover frequency reaches 9900 h(-1) at 298 K, which is among the highest values ever reported thus far for heterogeneously catalyzed reduction of 4-nitrophenol under ambient conditions. (C) 2016 Published by Elsevier B.V.