Ultrasmall silver nanoparticles supported on silica and their catalytic performances for carbon monoxide oxidation

被引:63
|
作者
Yu, Longbao [1 ]
Shi, Yayu [1 ]
Zhao, Zhen [2 ]
Yin, Hengbo [1 ]
Wei, Yuechang [2 ]
Liu, Jian [2 ]
Kang, Wenbing [1 ]
Jiang, Tingshun [1 ]
Wang, Aili [1 ]
机构
[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
基金
中国国家自然科学基金;
关键词
CO oxidation; Ag nanoparticle catalyst; Size effect; Schiff base; TEMPERATURE CO OXIDATION; SURFACE CHARACTERIZATION; THERMAL-DECOMPOSITION; AG CATALYSTS; GOLD; REDUCTION; PRETREATMENT; TITANIA; NOX;
D O I
10.1016/j.catcom.2010.12.012
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 ultrasmall Ag nanoparticles supported on silica were prepared by a novel and facile method, which was based on the introduction of the functional monomer salicylaldimine Schiff base into a SiO2 matrix. The ultrasmall silica-supported Ag nanoparticles were characterized by means of XRD, TEM, UV Vis, XPS and BET, and tested for CO oxidation. It was found that the catalytic oxidation of CO over the ultrasmall Ag nanoparticle catalysts was a strong size dependent reaction and the Ag particle size in a range of 3-5 nm was favorable for CO oxidation. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:616 / 620
页数:5
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