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Hyung Wook Ha

Researcher at Ewha Womans University

Publications -  16
Citations -  705

Hyung Wook Ha is an academic researcher from Ewha Womans University. The author has contributed to research in topics: Manganese & Oxide. The author has an hindex of 12, co-authored 16 publications receiving 666 citations. Previous affiliations of Hyung Wook Ha include UPRRP College of Natural Sciences & University of Texas at Austin.

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Journal ArticleDOI

Simultaneous Transfer and Doping of CVD-Grown Graphene by Fluoropolymer for Transparent Conductive Films on Plastic

Wi Hyoung Lee, +11 more
- 20 Jan 2012 - 
TL;DR: A new method to simultaneously transfer and dope chemical vapor deposition grown graphene onto a target substrate using a fluoropolymer as both the supporting and doping layer is reported.
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Phosphate-intercalated Ca–Fe-layered double hydroxides: Crystal structure, bonding character, and release kinetics of phosphate

Myong A. Woo, +5 more
- 01 Jan 2011 - 
TL;DR: In this paper, the nitrate-form of Ca-Fe-layered double hydroxide (Ca−Fe-LDH) was synthesized via co-precipitation method, and its phosphate-intercalates were prepared by ion-exchange reaction.
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Mesoporous Iron Oxide-Layered Titanate Nanohybrids: Soft-Chemical Synthesis, Characterization, and Photocatalyst Application

Tae Woo Kim, +6 more
- 03 Sep 2008 - 
TL;DR: In this article, a reassembling reaction between exfoliated titanate nanosheets and iron hydroxide nanoclusters, in which an electrostatic attraction between both nanosized species could be achieved at low pH of 15, was demonstrated by powder X-ray diffraction and transmission electron microscopic analysis.
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One-Pot Synthesis of Platinum Nanoparticles Embedded on Reduced Graphene Oxide for Oxygen Reduction in Methanol Fuel Cells

Hyung Wook Ha, +3 more
- 01 Jul 2011 - 
TL;DR: In this article, a simple approach has been developed for the synthesis of Pt nanoparticles with uniform diameters of approximately 2.9 nm supported on reduced graphene oxide (RG-O) platelets via a modified polyol method.
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Unilamellar Nanosheet of Layered Manganese Cobalt Nickel Oxide and Its Heterolayered Film with Polycations

Eun Jin Oh, +9 more
- 13 Jul 2010 - 
TL;DR: Atomic force microscopy and transmission electron microscopy clearly demonstrated that exfoliated manganese cobalt nickel oxide nanosheets have a nanometer-level thickness, underscoring the formation of unilamellar nanOSheets.