Zhang Daojun, Wang Zimo, Li Jiakai, Hu Chengming, Zhang Xiaobei, Jiang Bei, Cao Zhi, Zhang Jingchao, Zhang Renchun
Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University Anyang 455000 Henan China
College of Chemistry and Molecular Engineering, Zhengzhou University 100 Science Road Zhengzhou 450001 P. R. China.
RSC Adv. 2020 Mar 2;10(15):9063-9069. doi: 10.1039/c9ra08723k. eCollection 2020 Feb 27.
A porous ZnCoO micro-rice like microstructure was synthesized calcination of a Zn-Co MOF precursor at an appropriate temperature. The as-prepared ZnCoO sample presented good electrocatalytic oxygen evolution reaction performance with a small overpotential ( = 389 mV) and high stability in basic electrolyte. Furthermore, in basic medium, the as-synthesized ZnCoO micro-rice also showed good electrocatalytic activity for glucose oxidation. A ZnCoO micro-rice modified glass carbon electrode may be used as a potential non-enzymatic glucose sensor. The excellent electrocatalytic OER and glucose oxidation performances of ZnCoO might be attributed to the unique porous structure formed by the nanoparticles. The porous architecture of the micro-rice can provide a large number of electrocatalytically active sites and high electrochemical surface area (ECSA). The result may offer a new way to prepare low-cost and high performance oxygen evolution reaction and glucose oxidation electrocatalysts.
通过在适当温度下煅烧锌-钴金属有机框架（MOF）前驱体，合成了一种多孔的类微米粉状ZnCoO微观结构。所制备的ZnCoO样品在碱性电解质中表现出良好的电催化析氧反应性能，过电位较小（η = 389 mV）且稳定性高。此外，在碱性介质中，合成的类微米粉状ZnCoO对葡萄糖氧化也表现出良好的电催化活性。ZnCoO修饰的玻碳电极可作为一种潜在的非酶葡萄糖传感器。ZnCoO优异的电催化析氧反应和葡萄糖氧化性能可能归因于纳米颗粒形成的独特多孔结构。微米粉状的多孔结构可以提供大量的电催化活性位点和高电化学表面积（ECSA）。该结果可能为制备低成本、高性能的析氧反应和葡萄糖氧化电催化剂提供一种新方法。
