QQ客服 官方微博 反馈留言

	In situ formation of three-dimensional uniform pt/carbon nanotube nanocomposites from ionic liquid/carbon nanotube gel matrix with enhanced electrocatalytic activity toward methanol oxidation
	Yu, Ping1; Qian, Qin1,2; Lin, Yuqing1; Mao, Lanqun1
刊名	Journal of physical chemistry c
	2010-03-04
卷号	114期号:8页码:3575-3579
ISSN号	1932-7447
DOI	10.1021/jp910251t
通讯作者	Mao, lanqun(lqmao@iccas.ac.cn)
英文摘要	We report here a new electrochemical method for in situ deposition of pt nanoparticles onto multiwalled carbon nanotubes (mwnts) to form a three-dimensional uniform pt/mwnt nanocomposite with excellent electrocatalytic activity toward the oxidation of methanol, by taking advantage of the good solubility of mwnts and chloroplatinic acid (h(2)ptcl(6)) into ionic liquids (i.e., bmimpf(6)) to form a homogeneous and electronic conductive gel matrix. the gel is prepared by first dissolving h(2)ptcl(6) into ionic liquids and then grinding the ionic liquids with mwnts. the formation of the nanocomposite is accomplished by the reduction of the h(2)ptcl(6) precursor onto mwnts, both in the gel matrix. scanning electron microscopy, x-ray photoelectron spectroscopy, and cyclic voltammetry results reveal that the good homogeneity and conductivity of the prepared gel matrix substantially results in the formation of a three-dimensional nanocomposite, in which pt nanoparticles are homogeneously deposited onto mwnts in the gel matrix. voltammetric study with the as-prepared pt/mwnt nanocomposite indicates that the nanocomposite processes an enhanced electrocatalytic activity toward the oxidation of methanol, as compared with the pt/mwnt nanocomposite prepared with the conventional electrochemical method by the reduction of the h(2)ptcl(6) precursor in the solution phase onto mwnts confined onto conducting substrate. the strategy demonstrated here is facile, cost-effective. and environmentally benign and may be versatile for the preparation of three-dimensional mwnt-based nanocomposites with other kinds of metal nanoparticles with excellent properties.
WOS关键词	WALLED CARBON NANOTUBES ; FUEL-CELLS ; RATIONAL FUNCTIONALIZATION ; ELECTROCHEMICAL SYNTHESIS ; PLATINUM NANOPARTICLES ; SILVER NANOPARTICLES ; METAL NANOPARTICLES ; REDUCTION ; SURFACE ; LIQUID
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000274842700035
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2407781
专题	中国科学院大学
通讯作者	Mao, Lanqun
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Analyt Chem Living Biosyst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yu, Ping,Qian, Qin,Lin, Yuqing,et al. In situ formation of three-dimensional uniform pt/carbon nanotube nanocomposites from ionic liquid/carbon nanotube gel matrix with enhanced electrocatalytic activity toward methanol oxidation[J]. Journal of physical chemistry c,2010,114(8):3575-3579.
APA	Yu, Ping,Qian, Qin,Lin, Yuqing,&Mao, Lanqun.(2010).In situ formation of three-dimensional uniform pt/carbon nanotube nanocomposites from ionic liquid/carbon nanotube gel matrix with enhanced electrocatalytic activity toward methanol oxidation.Journal of physical chemistry c,114(8),3575-3579.
MLA	Yu, Ping,et al."In situ formation of three-dimensional uniform pt/carbon nanotube nanocomposites from ionic liquid/carbon nanotube gel matrix with enhanced electrocatalytic activity toward methanol oxidation".Journal of physical chemistry c 114.8(2010):3575-3579.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。