Porous hollow tubular carbon materials based on zeolitic imidazolate framework-8 derived from ZnO nanorods as new enzyme immobilizing matrix for high-performance bioanode of glucose/O2 biofuel cells
Porous hollow tubular carbon materials based on zeolitic imidazolate framework-8 derived from ZnO nanorods as new enzyme immobilizing matrix for high-performance bioanode of glucose/O2 biofuel cells
复制标题
基于ZnO纳米棒的沸石咪唑酯骨架8的多孔中空管状碳材料作为新型酶固定基质用于葡萄糖/O2生物燃料电池的高性能生物阳极
DOI：
10.1016/j.jelechem.2017.04.054
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发表时间：
2017-07-01
影响因子：
4.5
通讯作者：
Chen, Jinhua
中科院分区：
文献类型：
--
作者：
Jiang, Kanghua;Zhang, Xiaohua;Chen, Jinhua
本工作以氧化锌（ZnO）纳米棒为碳源，通过直接碳化的方法制备了Au纳米颗粒修饰的多孔中空管状碳材料（PHTCs@Au），并将其作为酶固定化基质构建了葡萄糖/O-2生物燃料电池（BFC）的生物阳极。由于PHTCs@Au具有高的比表面积、良好的导电性和特殊的多孔-中空管状结构，所制备的PHTCs@Au/GOD（葡萄糖氧化酶）-GA（戊二醛）/玻碳（GC）电极对葡萄糖氧化具有良好的催化能力和稳定性。以PHTCs@Au/GOD-GA/GC电极为阳极，商用Pt板电极为阴极组装的葡萄糖/O-2生物燃料电池，在0：23 V时可获得最大功率密度310 μ W·cm（-2），开路电位为0.63 V。PHTCs的这些诱人特性也为超级电容器和燃料电池等能量储存和转换装置提供了潜在的应用前景。
In this work, Au NPs decorated porous hollow tubular carbon materials (PHTCs@Au) by direct carbonization of zeolitic imidazolate framework-8 (ZIF-8) derived from ZnO nanorods were prepared and used as enzyme immobilizing matrix to construct a bioanode for glucose/O-2 biofuel cells (BFCs). Due to high surface area, good electric conductivity and extraordinary porous-hollow tubular structure of PHTCs@Au, the resulted enzyme electrode (PHTCs@Au/GOD (glucose oxidase)-GA (glutaraldehyde)/glassy carbon (GC) electrode) exhibited excellent catalytic capacity towards glucose oxidation and good stability. For the assembled glucose/O-2 BFC with the PHTCs@Au/GOD-GA/GC electrode as the bioanode and a commercial Pt plate electrode as the cathode, the maximum power density of 310 mu W cm(-2) can be obtained at 0:23 V, and the open circuit potential is 0.63 V. The attractive features of PHTCs also provide potential applications in energy storage and conversion devices such as supercapacitor and fuel cells, etc.