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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Electrochemical hydrogen evolution over MoO3 nanowires produced by microwave-assisted hydrothermal reaction

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Title
Electrochemical hydrogen evolution over MoO3 nanowires produced by microwave-assisted hydrothermal reaction
Other Titles
Electrochemical hydrogen evolution over MoO3 nanowires produced by microwave-assisted hydrothermal reaction
Author
Phuruangrat, AnukornHam, Dong JinThongtem, SomchaiLee, Jae Sung
Keywords
Microwave-assisted hydrothermal; MoO3 nanowires; Hydrogen evolution reaction
Issue Date
2009-09
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.11, no.9, pp.1740 - 1743
Abstract
Molybdenum trioxide (MoO3) nanowire with unprecedentedly high aspect ratios (>200) and good crystallinity was prepared via decomposition of (NH4)(6)Mo7O24 center dot 4H(2)O under a microwave-assisted hydrothermal (MH) process. The nanowire was orthorhombic MoO3 with 50 nm in diameter and 10-12 mu m in length. The conventional hydrothermal (CH) reaction required higher temperature and longer reaction times to produce one-dimensional MoO3, yet its quality was lower. In the electrochemical hydrogen evolution reaction in a H2SO4 solution, MoO3 nanowire from MH process showed much higher electrocatalytic activity than MoO3 prepared from CH method and commercial bulk MoO3 particles. The facile vectorial electron transport along the nanowire axis was considered to be responsible for the excellent electrocatalytic activity of the MH-MoO3 nanowire. (C) 2009 Elsevier B.V. All rights reserved
URI
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DOI
10.1016/j.elecom.2009.07.005
ISSN
1388-2481
Appears in Collections:
ECHE_Journal Papers
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