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Phase transformation of iron phosphide nanoparticles for hydrogen evolution reaction electrocatalysis
- Issue Date
- Jun-2018
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Hydrogen evolution reaction; Iron phosphide nanoparticles; Phase transformation; Fe2P; FeP
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.43, no.24, pp 11326 - 11334
- Pages
- 9
- Journal Title
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Volume
- 43
- Number
- 24
- Start Page
- 11326
- End Page
- 11334
- ISSN
- 0360-3199
1879-3487
- Abstract
- Transition metal phosphides have emerged as alternative electrocatalysts for hydrogen evolution reaction (HER) due to their high activity and low cost compared to the conventional HER electrocatalysts such as Pt. However, the dependency of HER activity on different crystal phases is not well-understood. Here, we synthesized iron phosphide nanoparticles with two distinct phases via chemical transformation from iron metal to iron phosphides. During the development of iron phosphide phases by varying the synthesis conditions such as reaction temperature and time, the HER activities of the nanoparticle were examined. The HER activities of the iron phosphide nanoparticles were found to be phase-dependent. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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