Document Detail

Free-Standing Three-Dimensional Graphene/Manganese Oxide Hybrids As Binder-Free Electrode Materials for Energy Storage Applications.
MedLine Citation:
PMID:  24978598     Owner:  NLM     Status:  Publisher    
Novel three-dimensional (3D) hybrid materials, i.e., free-standing 3D graphene-supported MnO2 nanosheets, are prepared by a simple and controllable solution-phase assembly process. Characterization results show that MnO2 nanosheets are uniformly anchored on a 3D graphene framework with strong adhesion and the integral hybrids show desirable mechanical strength. Such unique structure of 3D graphene/MnO2 hybrids thus provides the right characteristics of binder-free electrode materials and could enable the design of different kinds of high-performance energy storage devices. Especially, an advanced asymmetric supercapacitor is built by using a 3D graphene/MnO2 hybrid and a 3D graphene as two electrodes, and it is able to work reversibly in a full operation voltage region of 0-3.5 V in an ionic liquid electrolyte and thus exhibits a high energy density of 68.4 Wh/kg. As the cathode materials for Li-O2 and Li-MnO2 batteries, the 3D graphene/MnO2 hybrids exhibit outstanding performances, including good catalytic capability, high reversible capacity and desirable cycling stability. The results presented here may pave a way for new promising applications of such 3D graphene/MnO2 hybrids in advanced electrochemical energy storage devices.
Xiaoli Zhu; Peng Zhang; Shan Xu; Xingbin Yan; Qunji Xue
Related Documents :
19144358 - Optical and electron microscopy studies of schiller layer formation and structure.
7417408 - Conformation of nucleosome core particles and chromatin in high salt concentration.
1276388 - Analysis of freeze-fracture electron micrographs by a computer-based technique.
20923388 - Formulation development and in vitro evaluation of didanosine-loaded nanostructured lip...
20596198 - Sensitized superbroadband near-ir emission in bismuth glass/si nanocrystal superlattices.
21322678 - Mechanically induced generation of highly reactive excited-state oxygen molecules in cl...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-10
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  -     ISSN:  1944-8252     ISO Abbreviation:  ACS Appl Mater Interfaces     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Discovery of Novel AKT Inhibitors with Enhanced Anti-Tumor Effects in Combination with the MEK Inhib...
Next Document:  Polychlorinated biphenyls (PCB 101, PCB 153 and PCB 180) alter leptin signaling and lipid metabolism...