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Electrosynthesis of copper phosphide thin films for efficient water oxidation
- Authors
- Pawar, Sambhaji M.; Pawar, Bharati S.; Babar, Pravin T.; Ahmed, Abu Talha Aqueel; Chavan, Harish S.; Jo, Yongcheol; Cho, Sangeun; Kim, Jongmin; Inamdar, Akbar I.; Kim, Jin Hyeok; Kim, Hyungsang; Im, Hyunsik
- Issue Date
- 15-Apr-2019
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Copper phosphide; Electrodeposition; Oxygen evolution reaction; Annealing effect
- Citation
- MATERIALS LETTERS, v.241, pp 243 - 247
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 241
- Start Page
- 243
- End Page
- 247
- ISSN
- 0167-577X
1873-4979
- Abstract
- A copper phosphide (Cu3P) thin film is synthesized on a Ni foam using a one-step electrodeposition method at room temperature and annealed at 300 degrees C in Ar atmosphere. The Cu3P film is amorphous and has a flat morphology with surface voids. It works as an electrocatalyst for water oxidation in an alkaline 1 M KOH electrolyte. It exhibits excellent catalytic oxygen evolution reaction with an overpotential of 310 mV, Tafel slope of 88 mV/dec, and good stability over 20 h of operation at 10 mA/cm(2). The excellent OER performance is due to its large electrochemically active surface area and low charge transfer resistance at the catalyst-electrolyte interface after the annealing. (C) 2019 Elsevier B.V. All rights reserved.
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Related Researcher
- Inamdar, Akbar Ibrahim
- College of Advanced Convergence Engineering (Division of System Semiconductor)