Self-supported porous CoOOH nanosheet arrays as a non-enzymatic glucose sensor with good reproducibility
Self-supported porous CoOOH nanosheet arrays as a non-enzymatic glucose sensor with good reproducibility
复制标题
自支撑多孔 CoOOH 纳米片阵列作为非酶葡萄糖传感器，具有良好的重现性
DOI：
10.1016/j.snb.2014.12.113
复制
发表时间：
2015-04-01
影响因子：
8.4
通讯作者：
Wang, Yan
中科院分区：
文献类型：
--
作者：
Zhang, Li;Yang, Chunli;Wang, Yan
采用电化学辅助方法在钛箔上制备了多孔CoOOH纳米片阵列。纳米片状阵列具有层次化多孔结构，比表面积为470m(2)g(-1)。将所制备的CoOOH纳米片阵列作为非酶传感器用于葡萄糖检测。葡萄糖的安培检测在0.52V(相对于Ag/AgCl)进行。该方法的检测下限(S/N=3)为1.37µM，灵敏度为526.8+/-muAMM(-1)cm(-2)，与葡萄糖浓度在3-1.109 mM范围内呈线性关系(R=0.995)。对葡萄糖的高灵敏度主要归功于导电衬底上的分级多孔CoOOH纳米片阵列的独立和自支撑特性。阵列电极最吸引人的特点是重现性，使得5个电极对葡萄糖的响应电流的相对标准偏差为3.21%。(C)2015爱思唯尔B.V.保留所有权利。
Porous CoOOH nanosheet arrays are constructed on Ti foils by an electrochemical assistant method. The nano sheet arrays exhibit hierarchical porous structures with a specific surface area of 470 m(2)g(-1). The as-prepared CoOOH nanosheet arrays are used for glucose detection as a non-enzymatic sensor. The amperometric detection of glucose is carried out at 0.52 V (versus Ag/AgCl). The amperometric signals are linearly proportional to glucose concentration from 3 mu M to 1.109 mM (R = 0.995), showing a low detection limit (S/N = 3) of 1.37 mu M and a high sensitivity of 526.8 +/- mu AmM(-1)cm(-2) . The high sensitivity towards glucose is mainly attributed to the freestanding and self-supported features of hierarchical porous CoOOH nanosheet arrays on a conducting substrate. The most attractive feature of the array electrodes is the reproducibility, which helps the relative standard deviation of the response currents to glucose from five electrodes is 3.21%. (C) 2015 Elsevier B.V. All rights reserved.