Functionalization of Biomass Carbonaceous Aerogels: Selective Preparation of MnO2@CA Composites for Supercapacitors

doi:10.1021/am502035g

CORC > 化学研究所 > 中国科学院化学研究所

	Functionalization of Biomass Carbonaceous Aerogels: Selective Preparation of MnO2@CA Composites for Supercapacitors
	Ren, Yumei 1; Xu, Qun 1; Zhang, Jianmin 1; Yang, Hongxia 1; Wang, Bo 1; Yang, Daoyuan 1; Hu, Junhua 1; Liu, Zhimin 2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2014-06-25
卷号	6 期号:12 页码:9689-9697
关键词	Carbonaceous Materials Aerogel Mno2 Supercapacitors
ISSN号	1944-8244
DOI	10.1021/am502035g
英文摘要	Functionalized porous carbon materials with hierarchical structure and developed porosity coming from natural and renewable biomass have been attracting tremendous attention recently. In this work, we present a facile and scalable method to synthesize MnO2 loaded carbonaceous aerogel (MnO2@CA) composites via the hydrothermal carbonaceous (HTC) process. We employ two reaction systems of the mixed metal ion precursors to study the optimal selective adsorption and further reaction of MnO2 precursor on CA. Our experimental results show that the system containing KMnO4 and Na2S2O3 center dot 5H(2)O exhibits better electrochemical properties compared with the reaction system of MnSO4 center dot H2O and (NH4)(2)S2O8. For the former, the obtained MnO2@CA displays the specific capacitance of 123.5 F.g(-1). The enhanced supercapacitance of MnO2@CA nanocomposites could be ascribed to both electrochemical contributions of the loaded MnO2 nanoparticles and the porous structure of three-dimensional carbonaceous aerogels. This study not only indicates that it is vital for the reaction systems to match with porous carbonaceous materials, but also offers a new fabrication strategy to prepare lightweight and high-performance materials that can be used in energy storage devices.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000338184500095
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52935]
专题	中国科学院化学研究所
通讯作者	Xu, Qun
作者单位	1.Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450052, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Ren, Yumei,Xu, Qun,Zhang, Jianmin,et al. Functionalization of Biomass Carbonaceous Aerogels: Selective Preparation of MnO2@CA Composites for Supercapacitors[J]. ACS APPLIED MATERIALS & INTERFACES,2014,6(12):9689-9697.
APA	Ren, Yumei.,Xu, Qun.,Zhang, Jianmin.,Yang, Hongxia.,Wang, Bo.,...&Liu, Zhimin.(2014).Functionalization of Biomass Carbonaceous Aerogels: Selective Preparation of MnO2@CA Composites for Supercapacitors.ACS APPLIED MATERIALS & INTERFACES,6(12),9689-9697.
MLA	Ren, Yumei,et al."Functionalization of Biomass Carbonaceous Aerogels: Selective Preparation of MnO2@CA Composites for Supercapacitors".ACS APPLIED MATERIALS & INTERFACES 6.12(2014):9689-9697.