Jongsoon Kim

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The three-dimensional network of TiO(2) hollow nanoribbons designed from a peptide assembly using atomic layer deposition is demonstrated as a promising Li secondary battery electrode in this study. The nanoribbon network ensures effective transport of electrons and Li ions due to (i) a well-connected network of nanoribbons and (ii) the hollow structure of(More)
The facile synthesis of silicon nanotubes using a surface sol-gel reaction on pyridine nanowire templates is reported and their performance for energy storage is investigated. Organic-inorganic hybrid pyridine/silica core-shell nanowires prepared using surface sol-gel reaction were converted to silica nanotubes by pyrolysis in air; this was followed by the(More)
Large-scale electric energy storage is a key enabler for the use of renewable energy. Recently, the room-temperature Na-ion battery has been rehighlighted as an alternative low-cost technology for this application. However, significant challenges such as energy density and long-term stability must be addressed. Herein, we introduce a novel cathode material,(More)
Growing interest in electric vehicles, storage of energy from renewable sources, and load-leveling has positioned Li rechargeable batteries at the center of great attention, as they provide outstanding performance in terms of energy storage. [ 1 , 2–6 ] In the past decade, Li rechargeable battery technology has monopolized portable electric device markets(More)
Porous silicon nanowire is fabricated by a simple electrospinning process combined with a magnesium reduction; this material is investigated for use as an anode material for lithium rechargeable batteries. We find that the porous silicon nanowire electrode from the simple and scalable method can deliver a high reversible capacity with an excellent cycle(More)
Korea Atomic Energy Research Institute (KA 305-600, Korea Department of Materials Science and Eng Materials, Seoul National University, 599 Korea. E-mail: matlgen1@snu.ac.kr Center for Nanoparticle Research, Instit University, Seoul 151-742, Korea Department of Materials Science and Engine and Technology (KAIST), 291 Daehak-ro, Yu Materials and Process(More)
The development of a water oxidation catalyst has been a demanding challenge for the realization of overall water-splitting systems. Although intensive studies have explored the role of Mn element in water oxidation catalysis, it has been difficult to understand whether the catalytic capability originates mainly from either the Mn arrangement or the Mn(More)
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