High performance metal oxide based sensing device using an electrode with a solid/liquid/air triphase interface
High performance metal oxide based sensing device using an electrode with a solid/liquid/air triphase interface作者机构：College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou 215123 China School of Chemistry and Environment Beihang University Beijing 100191 China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2017年第10卷第9期
页 面：2998-3004页
核心收录：
学科分类：07[理学]
基 金：国家自然科学基金 the Jiangsu Province Science Foundation for Distinguished Young Scholars the Chinese Thousand Youth Talents Program
主 题：superhydrophobicity triphase interface metal oxide electrocatalyst sensing device
摘 要：The wetting properties of an electrode surface are of significant importance to the performance of electrochemical devices because electron transfer occurs at the electrode/electrolyte interface. Described in this paper is a low-cost metal oxide electrocatalyst (CuO)-based high-performance sensing device using an enzyme electrode with a solid/liquid/air triphase interface in which the oxygen level is constant and sufficiently high. We apply the sensing device to detect glucose, a model test analyte, and demonstrate a linear dynamic range up to 50 mM, which is about 25 times higher than that obtained using a traditional enzyme electrode with a solid/liquid diphase interface. Moreover, we show that sensing devices based on a triphase assaying interface are insensitive to the significant oxygen level fluctuation in the analyte solution.
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