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  1. Article

    Open Access

    Nanocrystalline Iron Pyrophosphate-Regulated Amorphous Phosphate Overlayer for Enhancing Solar Water Oxidation

  2. Inducing a localized crystalline iron pyrophosphate in amorphous iron phosphate overlayer.

  3. Enhanc...

    4. Chengkai **a, Yuankai Li, Minyeong Je, Jaekyum Kim, Sung Min Cho… in Nano-Micro Letters (2022)

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  4. Article

    Open Access

    Ultrasonic Plasma Engineering Toward Facile Synthesis of Single-Atom M-N4/N-Doped Carbon (M = Fe, Co) as Superior Oxygen Electrocatalyst in Rechargeable Zinc–Air Batteries

  5. Single-atom M-N4/N-doped carbons (M = Fe, Co) prepared as OER/ORR catalysts.

  6. Ultrasonication-assi...

    7. Kai Chen, Seonghee Kim, Minyeong Je, Heechae Choi, Zhicong Shi… in Nano-Micro Letters (2021)

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  7. Article

    Open Access

    Electronic structure, thermodynamic stability and high-temperature sensing properties of Er-α-SiAlON ceramics

    α-SiAlON ceramics have been in use as engineering ceramics in the most arduous industrial environments such as molten metal handling, cutting tools, gas turbine engines, extrusion molds, thermocouple sheaths, ...

    Yuwaraj K. Kshetri, Takashi Kamiyama, Shuki Torii, Sang Hoon Jeong… in Scientific Reports (2020)

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  8. No Access

    Article

    Effects of an in vacancy on local distortion of fast phase transition in Bi-doped In3SbTe2

    Indium vacancies in Bi-doped In3SbTe2 (BIST) cause local distortion or and faster phase transition of BIST with good stability. The formation energy of the In vacancy in the BIST is relatively lower compared t...

    Minho Choi, Heechae Choi, Seungchul Kim… in Journal of the Korean Physical Society (2017)

  9. Article

    Open Access

    Correction: Corrigendum: Lattice Distortion in In3SbTe2 Phase Change Material with Substitutional Bi

    Sb atoms in In3SbTe2 (IST) are partially substituted by 3.2–5.5 at.% of Bi atoms. As a result, the NaCl crystal structure of IST is slightly distorted. The distorted inter-planar angles observed with fast Fourier...

    Minho Choi, Heechae Choi, Seungchul Kim, **ho Ahn, Yong Tae Kim in Scientific Reports (2015)

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  10. Article

    Open Access

    Lattice Distortion in In3SbTe2 Phase Change Material with Substitutional Bi

    Sb atoms in In3SbTe2 (IST) are partially substituted by 3.2–5.5 at.% of Bi atoms. As a result, the NaCl crystal structure of IST is slightly distorted. The distorted inter-planar angles observed with fast Fourier...

    Minho Choi, Heechae Choi, Seungchul Kim, **ho Ahn, Yong Tae Kim in Scientific Reports (2015)

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  11. No Access

    Article

    TiO2 nanotube branched tree on a carbon nanofiber nanostructure as an anode for high energy and power lithium ion batteries

    The inherently low electrical conductivity of TiO2-based electrodes as well as the high electrical resistance between an electrode and a current collector represents a major obstacle to their use as an anode for ...

    Taeseup Song, Hyungkyu Han, Heechae Choi, Jung Woo Lee, Hyunjung Park… in Nano Research (2014)