Nanoporous carbon spheres and their application in dispersing silver nanoparticles

被引：47
作者：
Tang, Shaochun [1 ]
Tang, Yuefeng [1 ]
Vongehr, Sascha [1 ]
Zhao, Xiaoning [1 ]
Meng, Xiangkang [1 ]
机构：
[1] Nanjing Univ, Dept Mat Sci & Engn, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Nanoporous carbon spheres; Ultrasonic electrodeposition; Ag/C nanocomposite; LI-ION BATTERIES; SONOCHEMICAL DEPOSITION; HOLLOW SPHERES; ANODE MATERIAL; SPHERULES; ZEOLITE; CARBONIZATION; MORPHOLOGY; TEMPLATES; CATALYSTS;
D O I：
10.1016/j.apsusc.2009.01.056
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：
Monodisperse nanoporous carbon spheres (NCS) were synthesized in large quantities via a facile hydrothermal synthesis. It is found that the NCS have rough surfaces with a large quantity of uniformly distributed protruding and concaving zones. Large quantities of nanopores of about 0.3 nm in diameter are distributed uniformly on the whole sphere surfaces. The effects of reaction parameters on the surface roughness, sphere diameter and pore size of NCS were investigated. Taking the NCS as substrates, silver nanoparticles (NPs) were deposited onto their surfaces using a one-step ultrasonic electrodeposition procedure. The deposited silver NP has a uniform distribution, a high particle density and a narrow size range of 12-16 nm in diameter. This study demonstrates an efficient approach to fabricate noble-metal/carbon nanocomposites. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：6011 / 6016
页数：6
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