材料科学
石墨烯
质子交换膜燃料电池
腐蚀
合金
涂层
复合材料
电导率
冶金
化学工程
纳米技术
燃料电池
化学
物理化学
工程类
作者
Abhishek Arya,Raman Raghuvir Kumar Singh,Rahul Parmar,Matteo Amati,Luca Gregoratti,Sumit Saxena
出处
期刊:Small
[Wiley]
日期:2023-09-21
标识
DOI:10.1002/smll.202305320
摘要
Abstract Bipolar plates, a critical component of proton exchange membrane fuel cell (PEMFC), are constructed out of alloys of Ti, Pt, Cr, or graphitic materials that have limitations. Electrical conductivity, cost, and corrosion resistance are among the critical considerations for bi‐polar plate material. Graphene, which possesses impressive conductivity and toughness, is an attractive option as coating on metallic substrates of PEMFC bipolar plates. This study investigates corrosion resistance and its durability due to graphene developed by chemical vapor deposition on a pure Ni–Cu alloy and a commercial Ni–Cu alloy in 0.5 m H 2 SO 4 environment, with a view to exploring use of graphene coated Ni–Cu alloys for the construction of PEMFC bipolar plates. The graphene coating on the pure alloy shows remarkably superior corrosion resistance than the commercial alloy that is attributed to the former's ability to develop considerably defect‐free graphene.
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