Hydrothermal synthesis of manganese oxide encapsulated multiporous carbon nanofibers for supercapacitors

作     者：Haiyan Wang Jiang Deng Yiqing Chen Fan Xu Zhongzhe Wei Yong Wang 

作者机构：Advanced Materials and Catalysis GroupZJU-NHU United R&D CenterCenter for Chemistry of High-Performance and Novel MaterialsDepartment of ChemistryZhejiang UniversityHangzhou 310028China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2016年第9卷第9期

页      面：2672-2680页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Financial support from National Natural Science Foundation of China (Nos.21376208 and 91534114) the Zhejiang Provincial Natural Science Foundation for Distinguished Young Scholars of China (No.LR13B030001) the Fundamental Research Funds for the Central Universities and the Partner Group Program of the Zhejiang University and the Max-Planck Society is appreciated greatly 

主　　题：hydrothermal carbonization multiporous carbon nanofiber manganese oxide encapsulated supercapacitor 

摘      要：Hydrothermal carbonization (HTC) of biomass to produce one-dimensional carbon materials with hierarchical pores is of significant importance. Here, we fabricate composites of MnOx-encapsulated multiporous carbon nanofibers (M-MCNFs) from naturally available carbohydrates through a dopamine-assisted HTC/ templating process. The introduction of dopamine aids in the formation of the morphology of carbon nanofibers (CNFs) by enhancing the interactions between the hard-templates and carbohydrates. The chosen cryptomelane hard-templates, which are superior to traditional hard-templates, are converted into Mn3O4nanoparticles embedded in multiporous CNFs (MCNFs), eliminating the need for tedious post deposition procedures to introduce redox active sites. Hence, the obtained hybrids with large surface areas, hierarchical pores, and unique structures show great potential in supercapacitors. This economic and sustainable strategy paves a new way for synthesizing MCNFs and metal oxide-encapsulated MCNFs composites from biomass. [Figure not available: see fulltext.] © 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.