Rectangular flake-like mesoporous NiCo_2O_4 as enzyme mimic for glucose biosensing and biofuel cell  

基于矩形片状介孔NiCo_2O_4用于非酶葡萄糖生物传感器和葡萄糖生物燃料电池的研究（英文）

作　　者：崔世强 张江江 丁亚萍 古淑青 胡萍 胡宗倩 

机构地区：[1]School of Materials Science and Engineering, Shanghai University [2]Department of Chemistry, College of Sciences, Shanghai University [3]Shanghai Exit-Entry Inspection and Quarantine Bureau [4]State Key Laboratory of High performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences [5]Beijing Institute of Radiation Medicine

出　　处：《Science China Materials》2017年第8期766-776,共11页中国科学（材料科学（英文版）

基　　金：supported by the National Natural Science Foundation of China (21671132 and 81301345);Shanghai Natural Science Foundation (14ZR1450000);support from Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University

摘　　要：The rectangular flake-like mesoporous NiCo_2O_4（meso-NiCo_2O_4） catalysts were first used in glucose bio-sensing and glucose biofuel cell（GBFC） as an enzyme mimic simultaneously. The meso-NiCo_2O_4 displayed excellent catalytic capability to glucose including a super-fast response time（within1 s）, a super-high sensitivity（662.31 μA（mmol L^（-1））^（-1）cm^（-2））,and a super-low detection limit（0.3 nmol L^（-1）at S/N = 3） on the sensor. On the other hand, meso-Ni Co_2O_4 provided great values in GBFC as anode material with an open circuit voltage of0.63 V, a maximum power density of 0.092 m W cm^（-2）, and a limiting current density of 1.3 m A cm^（-2）, respectively. The preeminent catalytic abilities may be attributed to the large specific surface area resulting from the mesoporous structure and the surpassing intrinsic catalytic activity of Ni Co_2O_4 itself.These significant findings may promote the development of the supersensitive detection of glucose and will undoubtedly widen the catalytic materials for biofuel cell electrodes.矩形片状介孔NiCo_2O_4催化剂被首次同时用于非酶葡萄糖传感器和非酶葡萄糖燃料电池中.结果表明:在传感器上,介孔NiCo_2O_4催化剂对葡萄糖具有优异的传感特性,如超快的响应时间(小于1 s),超高的灵敏度(662.31μA(mmol L-1)-1cm-2)以及超低的检测限(0.3 nmol L-1at S/N=3);在燃料电池上,介孔Ni Co2O催化剂作为负极材料展示出了良好的应用前景,包括0.63 V的开路电压,0.092 m W cm-24的最大输出功率和1.3 mA cm^-2的极限电流密度.该材料对葡萄糖优异的催化能力归因于介孔结构引起的巨大比表面积能够提供更多的活性位点和NiCo_2O_4本身具有的良好的催化能力.本研究为促进非酶葡萄糖超敏感检测和丰富非酶葡萄糖燃料电池负极催化材料的发展提供了有利的依据.

关 键 词：flake-like mesoporous NiCo2O4 GLUCOSE electrochemical sensor fuel cells 

分 类 号：O643.36[理学—物理化学] TM911.4[理学—化学]