Soft nano-wrapping on graphene oxide by using metal-organic network films composed of tannic acid and Fe ions
Soft nano-wrapping on graphene oxide by using metal-organic network films composed of tannic acid and Fe ions
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DOI：
10.1039/c5cp00264h
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发表时间：
2015-01-01
影响因子：
3.3
通讯作者：
Haga, Masa-aki
中科院分区：
文献类型：
--
作者：
Ozawa, Hiroaki;Haga, Masa-aki
氧化石墨烯（GO）纳米片很容易被单宁酸和铁离子组成的均匀金属有机网络膜覆盖。利用原子力、扫描电子和透射电子显微镜测量来阐明包裹氧化石墨烯薄片的表面形貌。在衬底上覆盖有TA-Fe薄膜的氧化石墨烯薄膜被化学还原，而TA-Fe/GO薄膜的包裹纳米结构没有坍塌。用TA-Fe覆盖的改性氧化石墨烯薄片在水中高度稳定且易于处理，这使得放置在微电极阵列上进行电导率测量成为可能。
Graphene oxide (GO) nanosheets were easily covered with uniform metal-organic network films composed of tannic acid and Fe ions. The surface morphology of the wrapped GO sheets was elucidated using atomic force, scanning electron, and transmission electron microscopy measurements. The GO sheets covered with the TA-Fe films on a substrate were reduced chemically without the collapse of the wrapped nanostructure of the TA-Fe/GO sheets. The modified GO sheets covered with TA-Fe were highly stable in water and easy to handle, which made it possible for placing on a microelectrode array for conductivity measurements.