Enhanced catalysis of gold nanoparticles in microgels upon on site altering the gold-polymer interface interaction

被引：38
|
作者：
Zhai, Zhenghao [1 ,2 ]
Wu, Qingshi [3 ]
Li, Jin [1 ,2 ]
Zhou, Bo [1 ,2 ]
Shen, Jing [4 ]
Farooqi, Zahoor H. [5 ]
Wu, Weitai [1 ,2 ]
机构：
[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 361005, Fujian, Peoples R China
[2] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China
[3] Quanzhou Normal Univ, Coll Chem Engn & Mat Sci, Quanzhou 362000, Fujian, Peoples R China
[4] Yunnan Normal Univ, Dept Appl Chem, Coll Vocat Educ, Kunming 650092, Yunnan, Peoples R China
[5] Univ Punjab, Inst Chem, New Campus, Lahore 54590, Pakistan
来源：
JOURNAL OF CATALYSIS | 2019年 / 369卷
基金：
中国国家自然科学基金;
关键词：
Microgels; Stimulus-responsive; Gold nanoparticles; Heterogeneous catalysis; Interface interaction; VOLUME PHASE-TRANSITION; HETEROGENEOUS CATALYSIS; METALLIC NANOPARTICLES; MODULATION; PARTICLES; CHEMISTRY;
D O I：
10.1016/j.jcat.2018.10.037
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 catalytic activity of gold nanoparticles in carboxylic acid-containing polymer microgels can be enhanced by simply bubbling with CO2 gas, or adding salts of Hg2+, Pb2+, or Cd2+, making the catalytic activity comparable or even superior to that of free gold nanoparticles. This is plausibly achieved by altering the gold-polymer interface interaction. kinetic studies were carried out on the model gold-catalyzed reduction of 4-nitrophenol, nitrobenzene, and potassium hexacyanoferrate(III) by NaBH4 in order to better understand the catalytic process. (C) 2018 Elsevier Inc. All rights reserved.
引用
收藏
页码：462 / 468
页数：7
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