Polymer-assisted synthesis of manganese dioxide/carbon nanotube nanocomposite with excellent electrocatalytic activity toward reduction of oxygen

doi:10.1021/jp0628636

CORC > 化学研究所 > 中国科学院化学研究所

	Polymer-assisted synthesis of manganese dioxide/carbon nanotube nanocomposite with excellent electrocatalytic activity toward reduction of oxygen
	Gong, Kuanping ; Yu, Ping ; Su, Lei ; Xiong, Shaoxiang ; Mao, Lanqun
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2007-02-08
卷号	111 期号:5 页码:1882-1887
ISSN号	1932-7447
DOI	10.1021/jp0628636
英文摘要	This study describes a facile and effective polymer-assisted route to synthesis of structurally uniform and electrochemically active manganese dioxide/multiwalled carbon nanotube (MnO2/MWNT) nanocomposite and investigates the electrocatalytic activity of the synthetic MnO2/MWNT nanocomposite toward the reduction of oxygen in alkaline media. Poly(sodium 4-styrene sulfonate) (PSS) used here as the polymer to assist the synthesis of the nanocomposite serves as a bifunctional molecule both for solubilizing MWNTs into an aqueous solution and for tethering Mn2+ precursor onto MWNT surfaces to facilitate the follow-up chemical deposition of MnO2 to eventually on-spot grow MnO2 nanoparticles onto MWNTs. The synthetic MnO2/MWNT nanocomposite has a uniform surface distribution and large coverage of MnO2 nanoparticles onto MWNTs, which was characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and cyclic voltarnmetry (CV). The synthetic MnO2/MWNT nanocomposite was studied with respect to its electrocatalytic activity toward the reduction of oxygen in alkaline media and was found to possess a good electrocatalytic activity toward the four-electron reduction of oxygen. The MnO2/ MWNT nanocomposite synthesized with the polymer-assisted method could be potentially used as air electrode materials for catalytic reduction of O-2 in alkaline fuel cells and metal/air batteries.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000245005600007
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/60991]
专题	中国科学院化学研究所
通讯作者	Mao, Lanqun
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Gong, Kuanping,Yu, Ping,Su, Lei,et al. Polymer-assisted synthesis of manganese dioxide/carbon nanotube nanocomposite with excellent electrocatalytic activity toward reduction of oxygen[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(5):1882-1887.
APA	Gong, Kuanping,Yu, Ping,Su, Lei,Xiong, Shaoxiang,&Mao, Lanqun.(2007).Polymer-assisted synthesis of manganese dioxide/carbon nanotube nanocomposite with excellent electrocatalytic activity toward reduction of oxygen.JOURNAL OF PHYSICAL CHEMISTRY C,111(5),1882-1887.
MLA	Gong, Kuanping,et al."Polymer-assisted synthesis of manganese dioxide/carbon nanotube nanocomposite with excellent electrocatalytic activity toward reduction of oxygen".JOURNAL OF PHYSICAL CHEMISTRY C 111.5(2007):1882-1887.