Hierarchically porous cellulose nanofibril aerogel decorated with polypyrrole and nickel-cobalt layered double hydroxide for high-performance nonenzymatic glucose sensors
作者机构：College of Materials Science and EngineeringCentral South University of Forestry and TechnologyChangsha 410004China Department of Hepatobiliary SurgeryHunan Provincial People’s HospitalChangsha 410000China
出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)
年 卷 期：2023年第17卷第10期
页 面：1593-1607页
核心收录：
学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 07[理学] 070305[理学-高分子化学与物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0822[工学-轻工技术与工程]
基 金：supported by the National Natural Science Foundation of China(Grant No.31901249),the Hunan Provincial Natural Science Foundation of China(Grant No.2022JJ30079) the Hunan Provincial Technical Innovation Platform and Talent Program in Science and Technology(Grant No.2020RC3041) the Training Program for Excellent Young Innovators of Changsha(Grant No.kq2106056).
主 题：cellulose nanofibril aerogel nickel-cobalt layered double hydroxide polypyrrole nonenzymatic glucose sensor
摘 要：With increasing emphasis on green chemistry,biomass-based materials have attracted increased attention regarding the development of highly efficient functional materials.Herein,a new pore-rich cellulose nanofibril aerogel is utilized as a substrate to integrate highly conductive polypyrrole and active nanoflower-like nickel-cobalt layered double hydroxide through in situ chemical polymerization and electrodeposition.This ternary composite can act as an effective self-supported electrode for the electrocatalytic oxidation of glucose.With the synergistic effect of three heterogeneous components,the electrode achieves outstanding glucose sensing performance,including a high sensitivity(851.4μA·mmol^(−1)·L·cm^(−2)),a short response time(2.2 s),a wide linear range(two stages:0.001−8.145 and 8.145−35.500 mmol·L^(−1)),strong immunity to interference,outstanding intraelectrode and interelectrode reproducibility,a favorable toxicity resistance(Cl^(‒)),and a good long-term stability(maintaining 86.0%of the original value after 30 d).These data are superior to those of some traditional glucose sensors using nonbiomass substrates.When determining the blood glucose level of a human serum,this electrode realizes a high recovery rate of 97.07%–98.89%,validating the potential for highperformance blood glucose sensing.
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