Wide pH range electrocatalytic hydrogen evolution using molybdenum phosphide nanoparticles uniformly anchored on porous carbon cloth
- Authors
- Lee, Dong-Yeop; Song, Hee Jo; Kim, Dong-Wan
- Issue Date
- 1-4월-2021
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Molybdenum phosphide; Freestanding; Hydrogen evolution reaction; Electrocatalyst; Wide pH
- Citation
- CERAMICS INTERNATIONAL, v.47, no.7, pp.9347 - 9353
- Indexed
- SCIE
SCOPUS
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 47
- Number
- 7
- Start Page
- 9347
- End Page
- 9353
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/49433
- DOI
- 10.1016/j.ceramint.2020.12.065
- ISSN
- 0272-8842
- Abstract
- The development of efficient and inexpensive electrocatalysts is regarded as an urgent concern in electrochemical water-splitting system. Herein, we propose a novel strategy for the fabrication of molybdenum phosphide nanoparticles (MoP NPs) anchored on porous carbon cloth (MoP@PCC) as a noble metal-free electrocatalyst for hydrogen evolution reaction (HER). Benefiting from the thin and uniform coating of ultrafine molybdenum dioxide (MoO2) NPs on PCC, less-aggregated MoP NPs can be formed on PCC after thermal phosphidation, resulting in an efficient performance for HER over a wide pH range. Particularly, MoP@PCC exhibited good electrocatalytic activities in alkaline and neutral solutions with low overpotentials of 122 and 160 mV at a current density of -10 mA cm(-2), respectively. Additionally, MoP@PCC exhibited long-term stability and durability with continuous 10,000 cyclic voltammetry (CV) cycles and chronopotentiometric operation over 50 h, both in alkaline and neutral solutions.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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