石墨烯
材料科学
氧化物
共晶体系
纳米技术
生物传感器
电极
铟
液态金属
电化学
基质(水族馆)
氧化铟锡
合金
化学工程
光电子学
复合材料
化学
冶金
薄膜
物理化学
工程类
地质学
海洋学
作者
Mahroo Baharfar,Mohannad Mayyas,Mohammad Rahbar,Francois‐Marie Allioux,Jianbo Tang,Yifang Wang,Zhengjun Cao,Franco Centurion,Rouhollah Jalili,Guozhen Liu,Kourosh Kalantar‐Zadeh
出处
期刊:ACS Nano
[American Chemical Society]
日期:2021-11-16
卷期号:15 (12): 19661-19671
被引量:52
标识
DOI:10.1021/acsnano.1c06973
摘要
Liquid metals (LMs) are electronic liquid with enigmatic interfacial chemistry and physics. These features make them promising materials for driving chemical reactions on their surfaces for designing nanoarchitectonic systems. Herein, we showed the interfacial interaction between eutectic gallium-indium (EGaIn) liquid metal and graphene oxide (GO) for the reduction of both substrate-based and free-standing GO. NanoIR surface mapping indicated the successful removal of carbonyl groups. Based on the gained knowledge, a composite consisting of assembled reduced GO sheets on LM microdroplets (LM-rGO) was developed. The LM enforced Ga3+ coordination within the rGO assembly found to modify the electrochemical interface for selective dopamine sensing by separating the peaks of interfering biologicals. Subsequently, paper-based electrodes were developed and modified with the LM-rGO that presented the compatibility of the assembly with low-cost commercial technologies. The observed interfacial interaction, imparted by LM's interfaces, and electrochemical performance observed for LM-rGO will lead to effective functional materials and electrode modifiers.
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