123rd General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Exhibition Hall 2
Time 4월 18일 (목요일) 11:00~12:30
Code ELEC.P-439
Subject Activating MoS2 basal plane with Ni2P nanoparticles for Pt-like hydrogen evolution reaction
Authors Minkyung Kim, Jae Sung Lee1,*
Department of Energy Engineering, Ulsan National Institute of Science and Technology, Korea
1School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Korea
Abstract Electrocatalytic water splitting has great importance for sustainable hydrogen production due to its high purity and environmental-friendly process. The development of an efficient and non-noble metal cheaper catalyst for sustainable hydrogen generation is highly desirable to meet future energy challenges. Due to its inert basal plane, the molybdenum sulfide displays relatively poor performance in acidic media. Here we activate the MoS2 basal planes by growing Ni2P nanoparticles on it. The Ni2P/MoS2 heterostructure is constructed via in-situ phosphidation of an indigenously synthesized NiMoS4 salt as a single precursor to form a widely cross-doped and chemically connected heterostructure. As a result, the Ni2P/MoS2 heterostructure grown on N:RGO or N:CNT displays Pt-like HER performance in acidic media, outperforming the incumbent best HER electrocatalyst, Pt/C, in a more meaningful high current density region (>200 mA/cm2) making them a promising candidate for practical water electrolysis applications.
E-mail minkyong9778@naver.com