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Jeong, Hu Young
UNIST Central Research Facilities (UCRF)
Research Interests
  • Soft material characterization such as graphene using a low kV Cs-corrected TEM
  • Insitu-TEM characterization of carbon-based materials using nanofactory STM holder for Li-ion battery application
  • Structural characterization of mesoporous materials using SEM & TEM
  • Interface analysis between various oxides and metals through Cs-corrected (S)TEM
  • Resistive switching mechanism of graphene oxide thin films for RRAM application

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Electrochemical Design of Mesoporous Pt-Ru Alloy Films with Various Compositions toward Superior Electrocatalytic Performance

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Title
Electrochemical Design of Mesoporous Pt-Ru Alloy Films with Various Compositions toward Superior Electrocatalytic Performance
Author
Wang, HongjingImura, MasatakaNemoto, YoshihiroWang, LiangJeong, Hu YoungYokoshima, TokihikoTerasaki, OsamuYamauchi, Yusuke
Keywords
Aqueous surfactant solutions; Electrocatalytic activity; Electrocatalytic performance; Electrochemical deposition; Electrochemical plating; Mesopore sizes; Mesoporous; Mesoporous structures; Methanol oxidation reactions; Precursor composition; Pt catalysts; PtRu alloy; Uniform mesopores
Issue Date
2012-10
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMISTRY-A EUROPEAN JOURNAL, v.18, no.41, pp.13142 - 13148
Abstract
Mesoporous PtRu alloy films with various compositions were synthesized by electrochemical plating in an aqueous surfactant solution. After the removal of surfactants, continuous mesoporous PtRu alloy films possessing uniform mesopores with diameter about 7 nm were obtained. The Ru content in the films could be controlled from 0 to 13 at?% by changing the precursor compositions. For all the films, the mesostructural periodicities and the mesopore sizes in the films were not changed. Due to the mesoporous structure and the doped Ru content, our mesoporous PtRu films showed superior electrocatalytic activity for methanol oxidation reaction in comparison with the commercially available Pt catalyst.
URI
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DOI
10.1002/chem.201201964
ISSN
0947-6539
Appears in Collections:
UCRF_Journal Papers
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