Development of a free-standing flexible electrode for efficient overall water-splitting performance via electroless deposition of iron-nickel-cobalt on polyacrylonitrile-based carbon cloth.

Autor: Chae SH; Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea; Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea., Young Lee C; Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea., Jae Lee J; Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea., Jun Lee J; Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea., Kim H; Department of Fashion Design, Honam University, Gwangju 62399, Republic of Korea., Muthurasu A; Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea; Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea. Electronic address: amuthurasu@gmail.com., Kyoung Shin H; MJ Engineering and Construction, Jeonju 54852, Republic of Korea. Electronic address: marylin2006@naver.com.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2024 Oct 28; Vol. 680 (Pt A), pp. 42-53. Date of Electronic Publication: 2024 Oct 28.
DOI: 10.1016/j.jcis.2024.10.147
Abstrakt: Developing cost-effective and highly efficient electrodes for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is crucial, particularly for alkaline OER and HER. Herein, electroless plating of iron-nickel-cobalt (Fe-Ni-Co) electrocatalyst on a flexible polyacrylonitrile (PAN)-based carbon cloth (CC) was performed to synthesize a free-standing catalytic electrode for bifunctional electrocatalysts. The three-dimensional porous backbone of PAN-based CC and the synergistic effect between Fe-Ni-Co and corresponding hydroxides result in outstanding OER and HER activities, that is low overpotentials of 230 and 150 mV at 10 mA cm -2 and Tafel slopes of 63 and 57.1 mV dec -1 , respectively. Additionally, a complete alkaline electrolyzer was constructed using Fe-Ni-Co plated PAN-based CC as both the cathode and anode. When operated at 10 mA cm -2 , this setup enabled efficient water splitting at a low potential of 1.57 V. This study provides new opportunities for the development of advanced Fe-Ni-Co electrocatalyst with superior bifunctional OER and HER performance and cost-effectiveness that are suitable for integration into PAN-based CC via electroless plating.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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