A Strong Integrated Strength and Toughness Artificial Nacre Based on Dopamine Cross-Linked Graphene Oxide
A Strong Integrated Strength and Toughness Artificial Nacre Based on Dopamine Cross-Linked Graphene Oxide
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基于多巴胺交联氧化石墨烯的强韧综合人工珍珠层
DOI：
10.1021/nn503755c
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发表时间：
2014-09-01
期刊：
影响因子：
17.1
通讯作者：
Cheng, Qunfeng
中科院分区：
文献类型：
--
作者：
Cui, Wei;Li, Mingzhu;Cheng, Qunfeng
各行各业对这种强集成材料的需求大幅增加。受天然珍珠层优异的综合力学性能和层次化纳米/微米级结构的启发，我们开发了一种基于氧化石墨烯(GO)薄片的蒸发诱导组装法制备强整合人工珍珠层的策略。其抗拉强度和韧性分别是天然珍珠岩的1.5倍和2倍。同时，人造珍珠层具有较高的导电性。这种强集成人工珍珠层在航空航天、柔性超级电容器电极、人工肌肉和组织工程等领域具有巨大的潜在应用前景。
Demands of the strong integrated materials have substantially increased across various industries. Inspired by the relationship of excellent integration of mechanical properties and hierarchical nano/microscale structure of the natural nacre, we have developed a strategy for fabricating the strong integrated artificial nacre based on graphene oxide (GO) sheets by dopamine cross-linking via evaporation-induced assembly process. The tensile strength and toughness simultaneously show 1.5 and 2 times higher than that of natural nacre. Meanwhile, the artificial nacre shows high electrical conductivity. This type of strong integrated artificial nacre has great potential applications in aerospace, flexible supercapacitor electrodes, artificial muscle, and tissue engineering.