锌离子键/共价键协同强韧仿生石墨烯纳米复合材料
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- 英文论文题名：Graphene-based Nanocomposites via Synergistic Toughening of Ionic Bonding/Covalent Cross-linking
- 论文作者：龚珊珊 ; 江雷 ; 程群峰
- 英文论文作者：Shanshan Gong ; Lei Jiang ; Qunfeng Cheng ; School of Chemistry Environment ; Bei Hang University
- 年：2016
- 作者机构：北京航空航天大学化学与环境学院;
- 论文关键词：氧化石墨烯 ; 离子键 ; 共价键 ; 协同增韧
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：TQ127.11;TB33
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：172k
- 原文格式：D
- 会议级别：全国
摘要
柔性石墨烯基纳米复合材料在可穿戴电子器件领域具有广泛的应用前景,但是,如何将氧化石墨烯纳米片组装成高性能的宏观纳米复合材料,仍然是一个巨大的挑战。受天然鲍鱼壳丰富界面的启发,我们通过构筑离子键和共价键的协同作用,制备了高性能石墨烯纳米复合材料;其中,氧化石墨烯片层与二价的Zn2+形成了离子键,同时与有机小分子PCDO形成了共价键,这种界面协同作用提高了石墨烯纳米复合材料的强度和韧性,同时其抗疲劳性能也大幅度提高。此外,这种仿生石墨烯纳米复合材料还具有优异的电学性能。这些特殊性能为仿生石墨烯纳米复合材料在航空航天、柔性电极等电子器件领域的应用提供了可能。
Robust graphene-based nanocomposites show promising applications in wearable intelligent devices. It still remains a great challenge to assemble graphene oxide nanosheets into the high performance macroscopic nanocomposites. Inspired by the abundant interface interactions of nacre, we demonstrated robust graphene-based nanocomposites via synergistic toughening of ionic bonding and covalent bonding. The ionic bonding with graphene oxide nanosheets is constructed through divalent ions of Zinc, and the covalent bonding is built with graphene oxide nanosheets through 10,12-pentacosadiyn-1-ol(PCDO). The synergistic interactions results in integrated high strength, toughness and anti-fatigue life, higher than that of nacre, respectively. Furthermore, the resultant artificial nacre also possesses high electrical conductivity. These extraordinary performances allow this kind of graphene-based artificial nacre to be potentially utilized in aerospace, flexible electrode of supercapacitor and other intelligent devices.
Robust graphene-based nanocomposites show promising applications in wearable intelligent devices. It still remains a great challenge to assemble graphene oxide nanosheets into the high performance macroscopic nanocomposites. Inspired by the abundant interface interactions of nacre, we demonstrated robust graphene-based nanocomposites via synergistic toughening of ionic bonding and covalent bonding. The ionic bonding with graphene oxide nanosheets is constructed through divalent ions of Zinc, and the covalent bonding is built with graphene oxide nanosheets through 10,12-pentacosadiyn-1-ol(PCDO). The synergistic interactions results in integrated high strength, toughness and anti-fatigue life, higher than that of nacre, respectively. Furthermore, the resultant artificial nacre also possesses high electrical conductivity. These extraordinary performances allow this kind of graphene-based artificial nacre to be potentially utilized in aerospace, flexible electrode of supercapacitor and other intelligent devices.
引文
[1]S.Gong,W.Cui,Q.Zhang,A.Cao,L.Jiang,Q.Cheng,ACS Nano 2015,9,11568.