Document Detail


Synthesis of core/shell spinel ferrite/carbon nanoparticles with enhanced cycling stability for lithium ion battery anodes.
MedLine Citation:
PMID:  22414887     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Monodispersed core/shell spinel ferrite/carbon nanoparticles are formed by thermolysis of metal (Fe(3+), Co(2+)) oleates followed by carbon coating. The phase and morphology of nanoparticles are characterized by x-ray diffraction and transmission electron microscopy. Pure Fe(3)O(4) and CoFe(2)O(4) nanoparticles are initially prepared through thermal decomposition of metal-oleate precursors at 310 °C and they are found to exhibit poor electrochemical performance because of the easy aggregation of nanoparticles and the resulting increase in the interparticle contact resistance. In contrast, uniform carbon coating of Fe(3)O(4) and CoFe(2)O(4) nanoparticles by low-temperature (180 °C) decomposition of malic acid allowed each nanoparticle to be electrically wired to a current collector through a conducting percolative path. Core/shell Fe(3)O(4)/C and CoFe(2)O(4)/C nanocomposite electrodes show a high specific capacity that can exceed 700 mAh g(-1) after 200 cycles, along with enhanced cycling stability.
Authors:
Yun-Ho Jin; Seung-Deok Seo; Hyun-Woo Shim; Kyung-Soo Park; Dong-Wan Kim
Related Documents :
16283797 - Photochemical generation of nitrosocarbonyl intermediates on solid phase: synthons towa...
22335547 - Electronic structure of nickel(ii) and zinc(ii) borohydrides from spectroscopic measure...
22807807 - 1-ferrocenyl-3-(2-methyl-anilino)propan-1-one.
14653677 - Comparative effects of conjugated and deconjugated isomeric enones on the transannular ...
22394397 - Abibalsamins a and b, two new tetraterpenoids from abies balsamea oleoresin.
11457057 - Polymerization of lactide with zinc and magnesium beta-diiminate complexes: stereocontr...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-13
Journal Detail:
Title:  Nanotechnology     Volume:  23     ISSN:  1361-6528     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  125402     Citation Subset:  -    
Affiliation:
Department of Materials Science and Engineering, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon 443-749, Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  The patent ductus arteriosus in term infants, children, and adults.
Next Document:  Exercise Response in Hypertrophic Cardiomyopathy: Blunted Left Ventricular Deformational and Twistin...