期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 718, 期 -, 页码 304-310出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.05.201
关键词
Oxide materials; Chemical synthesis; Electrochemical reactions; Microstructure
资金
- National Natural Science Foundation of China [21501101]
- Program for Science & Technology Innovation Talents in the University of Henan Province [15HASTIT007]
Hierarchical porous CuO microspheres are successfully synthesized through a facile hydrothermal method using Na2HPO4-NaOH buffer solution as solvent. The SEM and TEM results reveal that the CuO microspheres are assembled by (001) facet-exposed nanocrystals. The BET result indicates that the CuO microspheres have a surface area of 61.9 m(2) g(-1) and an average pore size of similar to 3.7 nm. Moreover, it is found that the buffer solution not only serves as reactant and medium, but also affects the final shape of the CuO microspheres. The buffer solution can supply a suitable amount of OH- ions, which leads to no extra OH- ions absorb on the original crystals, thus favoring to form into 3D spherical microstructure. In addition, the CuO microspheres are used as the electrodic material for non-enzymatic glucose sensor, which present low detection limit (0.50 mu M), fast amperometric response time (3 s), and wide linear range (0.001-4.0 mM). The improved electrocatalytic performance is ascribed to the synergistic effect of exposure of (001) facet, large special surface area, and porous structure. (C) 2017 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据