Spontaneous reduction and assembly of graphene oxide into three-dimensional graphene network on arbitrary conductive substrates.
Spontaneous reduction and assembly of graphene oxide into three-dimensional graphene network on arbitrary conductive substrates.
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任意导电基底上氧化石墨烯自发还原并组装成三维石墨烯网络
DOI：
10.1038/srep02065
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发表时间：
2013
影响因子：
4.6
通讯作者：
Qu, Liangti
中科院分区：
文献类型：
--
作者：
Hu, Chuangang;Zhai, Xiangquan;Liu, Lili;Zhao, Yang;Jiang, Lan;Qu, Liangti
氧化石墨烯的化学还原是制备具有定制表面化学和功能的大规模石墨烯基材料的主要途径。然而，由于石墨烯的还原过程中存在毒性、多步骤甚至不完全去除含氧基团，所制得的石墨烯通常以无组装沉淀的形式存在。本文开发了一种衬底辅助氧化石墨烯还原和组装（SARA-GO）方法，该方法可以在任意导电衬底上自发形成3D石墨烯网络，包括活性和惰性金属、半导体硅、非金属碳甚至氧化铟锡玻璃，而无需任何额外的还原剂。SARA-GO工艺为构建独特的石墨烯组件（如微管、多通道网络、微模式）提供了一种简便、高效的方法，并允许制造高性能无粘结剂可充电锂离子电池。通用的SARD-GO方法显著提高了石墨烯的可加工性，从而有利于传感器和能源相关设备的许多重要应用。
Chemical reduction of graphene oxide (GO) is the main route to produce the mass graphene-based materials with tailored surface chemistry and functions. However, the toxic reducing circumstances, multiple steps and even incomplete removal of the oxygen-containing groups were involved and the produced graphenes existed usually as the assembly-absent precipitates. Herein, a substrate-assisted reduction and assembly of GO (SARA-GO) method was developed for spontaneous formation of 3D graphene network on arbitrary conductive substrates including active and inert metals, semiconducting Si, nonmetallic carbon and even indium-tin oxide glass without any additional reducing agents. The SARA-GO process offers a facile, efficient approach for constructing unique graphene assemblies such as microtubes, multi-channel networks, micropatterns and allows the fabrication of high-performance binder-free rechargeable lithium-ion batteries. The versatile SARD-GO method significantly improves the processablity of graphenes, which could thus benefit many important applications in sensors and energy-related devices.
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