文献类型：期刊文献

英文题名：Controlled Synthesis of CuO from needle to flower-like Particle Morphologies for Highly Sensitive Glucose Detection

作者：Ma, Xianguo Zhao, Qian Wang, Hui Ji, Shan

第一作者：马先果

通信作者：Ji, S[1];Wang, H[2]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2017

卷号：12

期号：9

起止页码：8217-8226

外文期刊名：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE

收录：;Scopus(收录号：2-s2.0-85029496703);WOS:【SCI-EXPANDED(收录号:WOS:000412639500025)】；

基金：The authors would like to thank the National Natural Science Foundation of China (No. 51603049) and Natural Science Foundation of Guizhou Province (No. qian ke he J zi [2015]2059) for financially supporting this work.

语种：英文

外文关键词：Copper oxide; Hierarchical structure; Glucose oxidation; Sensor

摘要：CuO particles with morphologies ranging from "needle", "flat flowers" to "peony-like" flower shape were prepared by varying hydrothermal reaction times. The structure and morphology of the CuO samples were characterized by X-ray diffraction, BET and scanning electron microscopy, and these samples were evaluated as catalysts for glucose oxidation in alkaline solution. Of the three particle morphologies, peony-like CuO produced the highest glucose sensitivity of 1322 [mu A mM(-1) cm(-2), with a broad detection range of 1.0 mu M - 4.0 mM, and a detection limit of 0.5 mu M under an applied potential of +0.5 V vs. Ag/AgCl. The peony-like CuO electrode also had excellent selectivity in the presence of interfering agents which usually co-exist in solution, for example uric acid, ascorbic acid and sodium chloride). Overall, we conclude that complex particle structure (of possible multiple grain boundary content) improves sensitivity for glucose detection and forms a target for developing effective non enzymatic sensors.