Thermal and Photocatalytic Production of Hydrogen Peroxide and its Use in Hydrogen Peroxide Fuel Cells
Thermal and Photocatalytic Production of Hydrogen Peroxide and its Use in Hydrogen Peroxide Fuel Cells
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DOI：
10.1071/ch13436
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发表时间：
2014-04
影响因子：
1.1
通讯作者：
S. Fukuzumi;Yusuke Yamada
中科院分区：
文献类型：
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作者：
S. Fukuzumi;Yusuke Yamada
这篇简短的综述介绍了我们最近在热和光催化生产过氧化氢及其在过氧化氢燃料电池中的应用方面的进展。通过使用适当的金属与酸的络合物，已经使得通过单电子还原剂将分子氧选择性地双电子还原成过氧化氢成为可能。配合物的配体的质子化促进了O2的还原。以草酸为电子源，有机光催化剂在缓冲溶液中也能实现双电子还原反应。控制反应溶液的水含量和pH对于提高催化活性和耐久性是重要的。过氧化氢燃料电池可以在没有膜的单隔室结构下运行，与需要膜的双隔室氢燃料电池相比，这对于低成本燃料电池的开发肯定更有希望。综述了铁配合物作为正极材料的应用。
This mini review describes our recent developments on the thermal and photocatalytic production of hydrogen peroxide and its use in hydrogen peroxide fuel cells. Selective two-electron reduction of dioxygen to hydrogen peroxide by one-electron reductants has been made possible by using appropriate metal complexes with an acid. Protonation of the ligands of the complexes facilitates the reduction of O2. The photocatalytic two-electron reduction of dioxygen to hydrogen peroxide also occurs using organic photocatalysts and oxalic acid as an electron source in buffer solutions. The control of the water content and pH of a reaction solution is significant for improving the catalytic activity and durability. A hydrogen peroxide fuel cell can be operated with a one-compartment structure without a membrane, which is certainly more promising for the development of low-cost fuel cells as compared with two compartment hydrogen fuel cells that require membranes. Utilisation of iron complexes as cathode materials are reviewed.