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Ryu, Jungki
Bio-inspired Functional Materials Lab (BFML)
Research Interests
  • Biomimetics, artificial photosynthesis, biomimetic catalysis, CO2 utilization

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Synthesis of Diphenylalanine/Cobalt Oxide Hybrid Nanowires and Their Application to Energy Storage

Cited 48 times inthomson ciCited 43 times inthomson ci
Title
Synthesis of Diphenylalanine/Cobalt Oxide Hybrid Nanowires and Their Application to Energy Storage
Author
Ryu, JungkiKim, Sung-WookKang, KisukPark, Chan Beum
Keywords
Cobalt oxide; Diphenylalanine; Energy storage; Hybrid nanostructures; Nanowires; Peptide self-assembly
Issue Date
2010-01
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.4, no.1, pp.159 - 164
Abstract
We report the synthesis of novel diphenylalanine/cobalt(II,III) oxide (Co3O4) composite nanowires by peptide self-assembly. Peptide nanowires were prepared by treating amorphous diphenylalanine film with aniline vapor at an elevated temperature. They were hybridized with Co 3O4 nanocrystals through the reduction of cobalt ions in an aqueous solution using sodium borohydride (NaBH4) without any complex processes such as heat treatment. The formation of peptide/Co 3O4 composite nanowires was characterized using multiple tools, such as electron microscopies and elemental analysis, and their potential application as a negative electrode for Li-ion batteries was explored by constructing Swagelok-type cells with hybrid nanowires as a working electrode and examining their charge/discharge behavior. The present study provides a useful approach for the synthesis of functional metal oxide nanomaterials by demonstrating the feasibility of peptide/Co3O4 hybrid nanowires as an energy storage material.
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DOI
10.1021/nn901156w
ISSN
1936-0851
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ECHE_Journal Papers
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