单层石墨烯制备及其耐腐蚀特性实验研究  

Preparation of monolayer graphene and its corrosion resistance characteristics

作　　者：邢玉雷[1] 徐克[1] 蔡光兰 齐春华[1] 王鑫[1] 刘志成 

机构地区：[1]国家海洋局天津海水淡化与综合利用研究所,天津300192 [2]天津大学材料学院,天津300192 [3]常州二维碳素科技股份有限公司,江苏常州213149

出　　处：《现代化工》2016年第3期87-90,共4页Modern Chemical Industry

基　　金：国家海洋局青年海洋科学基金(2013556);国家科技支撑计划课题(2014BAB04B02);国家自然科学基金(51209044)

摘　　要：采用低压气相化学沉积方法在铜基底表面制备了单层石墨烯,微观表征了其单层特性;然后通过电化学分析方法研究了单层石墨烯/铜的耐腐蚀特性,量化分析了其抗腐蚀能力。研究结果表明,单层石墨烯能够有效地抑制铜在电解液中的氧化还原反应而自身不会损坏,但如果石墨烯生长不完整或存在缺陷则相应部位的铜会被腐蚀。石墨烯/铜比裸铜的腐蚀电位提高了20 m V,电流密度降低了近1个数量级,其腐蚀阻抗模值较裸铜提高了1个数量级。研究表明,单层石墨烯能很好地将铜基底与电解液隔离,有效增强了铜的抗腐蚀能力。A monolayer grapheme is prepared on copper substrate by using low pressure chemical vapor deposition method. The corrosion resistant behaviors of the graphene / copper sample are studied by using electrochemical analysis.The results show that the perfect monolayer graphene film can effectively suppress the oxidation and reduction reactions of copper in electrolyte and does not damage itself. In contrast,if the graphene film growth is incomplete or defective,the corresponding parts of copper substrate will be corrosive. In comparison with copper,the corrosion potential of graphene /copper sample has increased by 20 m V but the current density has decreased by nearly an order of magnitude. At the same time,the corrosion impedance modulus of graphene / copper has improved by an order of magnitude. In a word,all the results show that the monolayer graphene can well isolate copper substrate from the electrolyte,effectively enhancing the corrosion resistance of copper.

关 键 词：石墨烯 气相化学沉积 电化学分析 耐腐蚀 

分 类 号：TG174.36[金属学及工艺—金属表面处理] TB321[金属学及工艺—金属学]