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Kim, Guntae
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Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, PEMFC, metal-air batteries, Metal-CO2 system, Catalyst for DRM

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Highly active dry methane reforming catalysts with boosted in situ grown Ni-Fe nanoparticles on perovskite via atomic layer deposition

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dc.contributor.author Joo, Sangwook ko
dc.contributor.author Seong, Arim ko
dc.contributor.author Kwon, Ohhun ko
dc.contributor.author Kim, Kyeounghak ko
dc.contributor.author Lee, Jong Hoon ko
dc.contributor.author Gorte, Raymond J. ko
dc.contributor.author Vohs, John M. ko
dc.contributor.author Han, Jeong Woo ko
dc.contributor.author Kim, Guntae ko
dc.date.available 2020-12-31T00:27:04Z -
dc.date.created 2020-09-11 ko
dc.date.issued 2020-08 ko
dc.identifier.citation SCIENCE ADVANCES, v.6, no.35, pp.eabb1573 ko
dc.identifier.issn 2375-2548 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/49121 -
dc.description.abstract With the need for more stable and active metal catalysts for dry reforming of methane, in situ grown nanoparticles using exsolution are a promising approach. However, in conventional exsolution, most nanoparticles remain underneath the surface because of the sluggish diffusion rate of cations. Here, we report the atomic layer deposition (ALD)-combined topotactic exsolution on La0.6Sr0.2Ti0.85Ni0.15O3-delta toward developing active and durable catalysts. The uniform and quantitatively controlled layer of Fe via ALD facilitates the topotactic exsolution, increasing finely dispersed nanoparticles. The introduction of Fe2O3 yields the formation of Ni-Fe alloy owing to the spontaneous alloy formation energy of -0.43 eV, leading to an enhancement of the catalytic activity for dry methane reforming with a prolonged stability of 410 hours. Overall, the abundant alloy nanocatalysts via ALD mark an important step forward in the evolution of exsolution and its application to the field of energy utilization. ko
dc.language 영어 ko
dc.publisher AMER ASSOC ADVANCEMENT SCIENCE ko
dc.title Highly active dry methane reforming catalysts with boosted in situ grown Ni-Fe nanoparticles on perovskite via atomic layer deposition ko
dc.type ARTICLE ko
dc.identifier.wosid 000563099200008 ko
dc.type.rims ART ko
dc.identifier.doi 10.1126/sciadv.abb1573 ko
dc.identifier.url https://advances.sciencemag.org/content/6/35/eabb1573 ko
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