Arya Abhishek Kumar, Singh Raman R K, Parmar Rahul, Amati Matteo, Gregoratti Luca, Saxena Sumit
Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia.
Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia.
Small. 2024 Sep;20(39):e2305320. doi: 10.1002/smll.202305320. Epub 2023 Sep 21.
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 HSO 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.
双极板是质子交换膜燃料电池（PEMFC）的关键部件，由钛、铂、铬合金或有局限性的石墨材料制成。导电性、成本和耐腐蚀性是双极板材料的关键考虑因素。具有出色导电性和韧性的石墨烯是作为PEMFC双极板金属基底涂层的一个有吸引力的选择。本研究调查了在0.5m硫酸环境中通过化学气相沉积法在纯镍 - 铜合金和商用镍 - 铜合金上制备的石墨烯的耐腐蚀性及其耐久性，旨在探索使用石墨烯涂层的镍 - 铜合金来构建PEMFC双极板。纯合金上的石墨烯涂层显示出比商用合金显著优越的耐腐蚀性，这归因于前者能够形成相当无缺陷的石墨烯。
