Carbon modified nitrogen-doped Fe 3 O 4 (N–Fe 3 O 4 @C) nanorod array directly grown on carbon cloth was fabricated. Nitrogen-doping and carbon shell effectively decrease the potential barrier of ion migration of the oxides and improve the electrochemical performance. An enhanced donor density...
A new quasi-solid-state supercapacitor with N–Fe3O4@C and NiCoP@Ni(OH)2 achieved high voltage to 2.0 V and high energy density (72.37 Wh kg−1, 2.36 mWh cm−3). Graphical abstract Nitrogen-doped Fe2O3 (N–Fe2O3) nanorod array was directly grown on a carbon cloth and ...
Chen, L. Jing, Synthesis of well-defined Fe3O4 nanorods/N-doped graphene for lithium-ion batteries, Nano Rev. 9 (2016) 1256e1266.Jiao, J.Q.; Qiu, W.D.; Tang, J.G.; Chen, L.P.; Jing, L.Y. Synthesis of well-defined Fe3O4 nanorods/N-doped graphene for lithium-ion ...
石榴状Fe3O4@N–C NCs在0.01-3V,0.5A/g下初始放电容量为1626.8mAh/g,充电容量为1295.5mAh/g,不可逆容量损失为331.3mAh/g,这是由SEI膜和Li2O的生成所造成的,在绝大多数电极材料中都有这个现象;且在首次循环后Fe3O4@N–C NCs表现出非常稳定的循环能力,经过100次循环后容量仅仅从1265.5mAh/g 衰减到1204.3mA...
Nitrogen-doped graphene (NDG) and mixed metal oxides have been attracting much attention as the combination of these materials resulted in enhanced electrochemical properties. In this study, a composite of nitrogen-doped graphene/manganese oxide/iron oxide (NDG/Mn3O4/Fe3O4) for a supercapacitor ...
Yolk–shell Fe 3 O 4 @N-doped carbon nanochains, intended for application as a novel microwave-absorption material, have been constructed by a three-step method. Magnetic-field-induced distillation-precipitation polymerization was used to synthesize nanochains with a one-dimensional (1D) structure....
performanceanode material. 3D framework of porous poly-melamine sponge (PMS) worked as not only a template for the assembly of graphene to form unique curved and hollow foam structure and prevent their agglomeration and restacking, but also a source of N-doped carbon coating of Fe3O4...
“Architecting N-doped Carbon Nanotube-Rich Carbon Nanofibers with Biomimetic Vine-Leaf-Whisker Structure as Robust Bifunctional Electrocatalysts for Rechargeable Zn–Air Batteries”的论文,研究提出了一种三维(3D)分层双功能催化剂(...
石榴状Fe3O4@N–C NCs的容量高于Fe3O4的理论容量(928mAh/g)的原因是:首先超小的过渡金属粒子更有利于电荷的存储;其次石榴状结构的表面更有利于吸附锂离子,最后表面碳壳在退火处理时创造了额外的活性位点,这些因素综合起来提高了其容量。而它出色...
Jiahui Liu1, Jingwei Ai1,Yuxiang Zhang1, Tailiang Guo1, Xiongtu Zhou1, Sheng Xu1 & Zaiping Guo2,3 Particular N, S co-doped graphene/Fe3O4 hybrids have been successfully synthesized by the combination of a simple hydrothermal process and a subsequent carbonization heat treat...