Three-dimensional Co2V2O7·nH2O superstructures assembled by nanosheets for electrochemical energy st

来源 :中国化学快报(英文版) | 被引量 : 0次 | 上传用户:zibu365H356
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Hierarchical superstructures assembled by nanosheets can effectively prevent aggregation of nanosheets and improve performance in energy storage.Therefore,we proposed a facile hydrothermal method to obtain three-dimensional (3D) superstructure assembled by nanosheets.We found that the ratio of Co2+/HMTA affected the morphology of the samples,and the 3D hierarchical structures of are obtained while the ratio of Co2+/HMTA is 12:25.The hierarchical structures with sufficient interior space preserves the original sheet-like dimensional components and results in sufficient active sites and efficient mass diffusion.Hence,the 3D Co2V2O7·nH2O hierarchical structure exhibits good rate capability and high sta-bility while as electrode materials.Meanwhile,when power density is 745.13 W/kg,the assembled CVO-2//AC shows an energy density of 47.7 Wh/kg.The work displays a facile method for fabrication of 3D superstructure assembled by 2D nanosheets that can be applied in energy storage.
其他文献
This study synthesized UiO-66 (Zr) in situ on wood via a one-step solvothermal method.UiO-66/wood was successfully prepared and its catalytic performance for the ofloxacin (OFX) photodegradation under simulate sunlight was also explored.UiO-66/wood exhibi
Anaerobic digestion (AD) is a promising technology for the treatment of waste activated sludge (WAS)with energy recovery.However,the low methane yield and slow methanogenesis limit its broad applica-tion.In this study,the NiFe2O4 nanoparticles (NPs) were
Single-component organic solar cells (SCOSCs) with high stability and simplified fabrication process are supposed to accelerate the commercialization of organic photovoltaics.However,the types of photo-active materials and photovoltaic performance of SCOS
Carbonate radical is among the most important environmental relevant reactive species which govern the transformation and fate of pharmaceutical contaminants (PCs).However,reaction rate constants be-tween carbonate radical and most of the PCs have not bee
Formaldehyde is an important air pollutant and its removal is essential to protect human health and meet environmental regulations.Ag-based catalyst has a considerable potential for HCHO oxidation in low temperature range.The valence state of Ag is one of
Multicomponent binary metal oxide-involved hybrid structures with unique physicochemical properties have received extensive attention due to their fascinating electrochemical performance.Herein,a flexible strategy,which involves the preparation of dual-fu
Catalytic hydrodeoxygenation (HDO) is one of the most effective methods to upgrade the oxygen-containing compounds derived from coal tar to valuable hydrocarbons.Herein,an efficient bimetallic catalyst Pt1Ni4/MgO was prepared and applied in the HDO of dib
行政事业单位在财务管理中采用的是会计集中核算模式,其能够对单位财政资金管理和使用进行规范,但是伴随着财政管理体制的改革,行政事业单位会计集中核算模式在实际应用中暴露出很多问题.国库集中支付制度的实施,能够很好地克服会计集中核算模式的弊端,提升行政事业单位会计核算的效果.本文从国库集中支付制度和会计集中核算的内涵出发,分析了当前行政事业单位在实施会计集中核算制度过程中存在的问题,并就国库集中支付制度下行政事业单位会计集中核算模式的优化策略进行了探讨,希望能够推动行政事业单位社会服务职能的有效发挥.
本文立足于当前我国新收入准则实施的实际情况简略阐述了该课题的研究背景,介绍了新收入准则对投资控股集团开展财务工作造成的影响,并从完善合同专项管理制度、强化建设财务人员队伍以及积极创新财务信息系统几方面着手提出了几点优化策略,旨在为相关工作人员提供参考.
Li-S batteries have shown great potential as secondary energy batteries.However,the side reaction be-tween Li anodes and polysulfides seriously limited their practical application.Herein,the artificial pro-tective film,which is consisted of Li-Nafion and