Hydrogen bubble-assisted growth of Pt3Te4 for electrochemical catalysts
- 주제(키워드) Hydrogen bubble assisted growth , Electrochemical deposition , Platinum telluride , Hydrogen evolution reaction
- 주제(기타) Materials Science, Multidisciplinary
- 주제(기타) Physics, Applied
- 설명문(일반) [Bae, Dongyeon; Kim, Jeong Hyo; Kwon, Hagyeong; Cho, Suyeon] Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea; [Won, Dongyeun] Sungkyunkwan Univ, Dept Energy Sci, Suwon 16419, South Korea; [Lin, Chia-Hsien; Chiang, Ching-Yu; Ku, Ching-Shun] Natl Synchrotron Radiat Res Ctr, Mat Sci Grp, Hsinchu 30076, Taiwan; [Park, Karam; Jeong, Sukmin] Jeonbuk Natl Univ, Dept Phys, Jeonju 54896, South Korea; [Park, Karam; Jeong, Sukmin] Jeonbuk Natl Univ, Res Inst Phys & Chem, Jeonju 54896, South Korea; [Yang, Heejun] Korea Adv Inst Sci & Technol KAIST, Dept Phys, Daejeon 34141, South Korea
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS, KCI등재
- 발행기관 ELSEVIER
- 발행년도 2021
- URI http://www.dcollection.net/handler/ewha/000000191230
- 본문언어 영어
- Published As https://doi.org/10.1016/j.cap.2021.04.019
초록/요약
Novel materials and structures with abundant active sites have been in continuous demand for electrochemical catalytic applications. In this study, we synthesized platinum telluride (Pt3Te4) nanocrystals on two-dimensional metallic molybdenum ditelluride (MoTe2) using a dynamic hydrogen bubble template method in the hydrogen evolution reaction (HER). The local crystal structure and chemical state of the Pt3Te4 nanocrystals were investigated using X-ray nano-diffraction and X-ray nano-absorption spectroscopy. In our electrochemical deposition method, the morphology, and HER performance of the Pt3Te4 nanocrystals could be manipulated through the hydrogen bubble generation rate. Thus, the nanorod-shaped Pt3Te4 nanocrystals, fabricated by a high rate of hydrogen bubble generation, exhibited outstanding HER performance, which is in contrast with the HER performance of hemisphere-shaped Pt3Te4. Our study provides a facile and systematic way of synthesizing high-performance electrochemical catalysts using the hydrogen bubble-assisted growth method.
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