Microwave-plasma-processed self-catalyzed stainless steel fiber paper porous transport layer for anion exchange membrane water electrolysis

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources Pub Date : 2025-03-14 DOI:10.1016/j.jpowsour.2025.236735

Shuo-En Yu , Ruei-Yu Hsu , Zhi-Hui Pu , I-Chun Cheng , Jian-Zhang Chen

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Abstract

Anion exchange membrane water electrolysis (AEMWE) shows great potential for water splitting. The catalyst layer (CL), porous transport layer (PTL), and design of the operation system are crucial for advancing AEMWE technology. In this study, we propose a technique in which a rapid high-energy-efficiency microwave plasma (MP) process is used to improve a PTL made of stainless steel fiber paper (SSP) with catalytic activity for the oxygen evolution reaction (OER). SSP treated with Ar microwave plasma (SSP-ArMP) demonstrated a lower overpotential, reduced Tafel slope, lower charge transfer resistance (R_ct), and higher double-layer capacitance (2C_dl). At 70 °C, cathode-wet and cathode-dry AEMWE operations reached 1000 mA/cm² with 1.80 V and 1.86 V, corresponding to hydrogen production energy consumption of 46.67 and 47.96 kWh/kgH₂, respectively. Both cathode-wet and cathode-cry operations showed similar stability characteristics.

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来源期刊

Journal of Power Sources 工程技术-电化学

CiteScore

16.40

自引率

6.50%

发文量

1249

审稿时长

36 days

期刊介绍： The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells. Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include: • Portable electronics • Electric and Hybrid Electric Vehicles • Uninterruptible Power Supply (UPS) systems • Storage of renewable energy • Satellites and deep space probes • Boats and ships, drones and aircrafts • Wearable energy storage systems