UNIST · Engineering
김광승 교수의 연구실은 나노소재 기반의 환경 정화 및 에너지 변환 기술 개발에 초점을 맞추고 있습니다. 그래핀 유도체, 도핑된 탄소 소재, 복합 나노재료를 활용해 수은 이온 제거, 크롬(VI) 흡착, 이산화탄소 선택적 흡착 등 환경 오염 제거에 효과적인 재료를 개발하고 있으며, 수소 및 산소 발생 반응을 위한 저가 대체 전기촉매의 설계에도 기여하고 있습니다. 특히 실용화 가능성을 고려한 대량 합성 및 재활용 성능 향상에도 주력하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular Clusters of π-Systems: Theoretical Studies of Structures, Spectra, and Origin of Interaction EnergiesKwang S. Kim, P. Tarakeshwar, and Jin Yong LeeView Author Information National Creative Research Initiative Center for Superfunctional Materials, Department of Chemistry, Division of Molecular and Life Sciences, Pohang University of Science and Technology, San 31, Hyojadong, Pohang 790-784, Korea Cite this: Chem. Rev. 2000, 100, 11, 4145–4186P
Abstract The sustainable and scalable production of hydrogen through hydrogen evolution reaction (HER) and oxygen through oxygen evolution reaction (OER) in water splitting demands efficient and robust electrocatalysts. Currently, state‐of‐the‐art electrocatalysts of Pt and IrO 2 /RuO 2 exhibit the benchmark catalytic activity toward HER and OER, respectively. However, expanding their practical application is hindered by their exorbitant price and scarcity. Therefore, the development of alternat
A facile chemical route to synthesize the polypyrrole-reduced graphene oxide composite showing a highly selective Hg(2+) removal capacity is reported. The gram scale production, high adsorption capacity and recycling make this material practically useful for waste water treatment.
This review deals with wide-ranging environmental studies of graphene-based materials on the adsorption of hazardous materials and photocatalytic degradation of pollutants for water remediation and the physisorption, chemisorption, reactive adsorption, and separation for gas storage. The environmental and biological toxicity of graphene, which is an important issue if graphene composites are to be applied in environmental remediation, is also addressed.
Nanoscale iron particles decorated graphene sheets synthesized via sodium borohydride reduction of graphene oxide, showed enhanced magnetic property, surface area and Cr(vi) adsorption capacity compared to bare iron nanoparticles.
N-doped porous carbon produced via chemical activation of polypyrrole functionalized graphene sheets shows selective adsorption of CO(2) (4.3 mmol g(-1)) over N(2) (0.27 mmol g(-1)) at 298 K. The potential for large scale production and facile regeneration makes this material useful for industrial applications.
Abstract The most efficient electrocatalyst for the hydrogen evolution reaction (HER) is a Pt‐based catalyst, but its high cost and nonperfect efficiency hinder wide‐ranging industrial/technological applications. Here, an electrocatalyst of both ruthenium (Ru) single atoms (SAs) and N‐doped‐graphitic(G N )‐shell‐covered nitrided‐Ru nanoparticles (NPs) (having a Ru‐N x shell) embedded on melamine‐derived G N matrix { 1 : [Ru(SA)+Ru(NP)@RuN x @G N ]/G N }, which exhibits superior HER activity in b
A simple and effective strategy for fabricating high-stability alkaline anion exchange membrane water electrolyzers for large-scale hydrogen production.
High-performance 3d–5d transition metal single atom electrocatalysts ligated by various –N<sub>x</sub>C<sub>y</sub> moieties of N-doped graphene are investigated for hydrogen evolution and oxygen evolution/reduction reactions using high-throughput computational screening and machine learning.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn Binding Forces between Aromatic Ring and Quaternary Ammonium CompoundKwang S. Kim, Jin Yong Lee, Sang Joo Lee, Tae-Kyu Ha, and Dong H. KimCite this: J. Am. Chem. Soc. 1994, 116, 16, 7399–7400Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Published inissue 1 August 1994https://pubs.acs.org/doi/10.1021/ja00095a050https://doi.org/10.1021/ja00095a050research-articleACS PublicationsRequest reuse permissionsArticle Vi
Graphene sheets decorated with SnO(2) nanoparticles (RGO-SnO(2)) were prepared via a redox reaction between graphene oxide (GO) and SnCl(2). Graphene oxide (GO) was reduced to graphene (RGO) and Sn(2+) was oxidized to SnO(2) during the redox reaction, leading to a homogeneous distribution of SnO(2) nanoparticles on RGO sheets. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images show uniform distribution of the nanoparticles on the RGO surface and high-resolut
