Department of Micro- and Nanotechnology, DK-2800 Kgs. Lyngby, Denmark.
Sci Rep. 2017 Jan 9;7:39770. doi: 10.1038/srep39770.
Applying protective or barrier layers to isolate a target item from the environment is a common approach to prevent or delay its degradation. The impermeability of two-dimensional materials such as graphene and hexagonal boron nitride (hBN) has generated a great deal of interest in corrosion and material science. Owing to their different electronic properties (graphene is a semimetal, whereas hBN is a wide-bandgap insulator), their protection behaviour is distinctly different. Here we investigate the performance of graphene and hBN as barrier coatings applied on copper substrates through a real-time study in two different oxidative conditions. Our findings show that the evolution of the copper oxidation is remarkably different for the two coating materials.
将保护层或阻隔层应用于目标物品，使其与环境隔离，是防止或延缓其降解的常用方法。二维材料（如石墨烯和六方氮化硼（hBN））的不渗透性在腐蚀和材料科学领域引起了极大的关注。由于它们具有不同的电子特性（石墨烯是半导体，而 hBN 是宽带隙绝缘体），它们的保护行为明显不同。在这里，我们通过在两种不同的氧化条件下进行实时研究，研究了石墨烯和 hBN 作为铜基底阻隔涂层的性能。我们的研究结果表明，这两种涂层材料对铜氧化的演变有显著不同的影响。
