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The growing demand for durable PEM systems (PEMFCs and PEMWEs) has emphasized the significance of corrosion resistance and hydrogen uptake characteristics in metallic bipolar plates. To mitigate degradation in corrosive environments, noble metal coatings such as platinum (Pt) and gold (Au) have been applied; however, their effects on hydrogen permeation are not well understood. This study evaluates the hydrogen permeation characteristics of STS470, STS316L, and a titanium alloy using the Devanathan–Stachurski electrochemical method, both in bare form and with noble metal coatings. Thin layers of Pt and Au were deposited via sputtering, and testing was performed in simulated acidic electrolyte environments relevant to PEM operation. The results revealed that STS470 had the highest hydrogen permeability, while the titanium alloy exhibited the lowest. Both Pt and Au coatings significantly reduced hydrogen permeation, with Pt demonstrating slightly better performance. Furthermore, these coatings improved corrosion resistance under harsh electrochemical conditions. These findings highlight the dual role of noble metal coatings in reducing hydrogen uptake and enhancing corrosion resistance, providing valuable insights for designing advanced metallic bipolar plates in next-generation PEM systems.

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권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
Investigation into the corrosion mechanism of high-voltage cables in eco-friendly vehicles Sungho Shin, Seungho Ahn, Hyuntaeck Lim p. 203-211

Influence of ethylene glycol on the electropolishing of titanium and the electrochemical characteristics in PEMFC environments Hyun-Kyu Hwang, Seong-Jong Kim p. 212-229

Prediction of electrochemical characteristics of metallic bipolar plates for PEMFCs using machine learning and deep learning model Dong-Ho Shin, Seong-Jong Kim p. 230-247

Investigation of hydrogen permeability in metallic materials for bipolar plates with noble coatings for PEMFC/PEMWC systems Hee-Gun Shin, Jae-Ho Lee, Seung-Pill Jung, Hyun-Yeong Jung, Song Jun Ho, Yeon Joo Hong, Ei Joon Shim, Hye-Jin Kim p. 248-257

치과용 리튬 디실리케이트 세라믹의 다양한 표면 처리에 따른 표면 특성 = Surface characteristics of lithium disilicate ceramics via various surface modifications for dental use 곽해성, 최한철 p. 258-268

기계학습에 기반한 AA1100 합금의 부식에 미치는 환경 영향 분석 = Machine learning-based analysis of environmental effects on the corrosion of AA1100 alloy 정용주, 김민태, 서정우, 이주희, 장희진, 김희수 p. 269-280

치과 임플란트용 타이타늄의 표면처리에 따른 부식특성 = Corrosion characteristics of titanium for dental implant with surface modifications 김승표, 최한철 p. 281-288

초고강도 철강소재 내 미량 첨가된 합금원소 (Cr 및 Si)가 제조공정 중 표층 산화물 형성과 3.5% NaCl 수용액 내 부식거동에 미치는 영향 = Effect of minor alloying elements (Cr and Si) on surface oxide formation during processing and corrosion behavior of ultra-high-strength steel in 3.5% NaCl solution 백규빈, 황은혜, 이세웅, 김성진 p. 289-298

전고체 이차전지용 음극 소재의 개발 동향 = Development of negative electrode materials for all-solid-state batteries 김재헌 p. 299-308

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