微生物燃料电池非贵金属氧化物阴极催化剂研究进展

微生物燃料电池(Microbial Fuel Cell,MFC)是一种利用微生物将底物中的化学能直接转化为电能的理想产电装置,具有产电与废弃物处置双重功效.为探究非贵金属氧化物作为微生物燃料电池阴极催化剂可能的研究方向和发展趋势,主要总结了近几年来两种主要非贵金属氧化物(二氧化锰、二氧化钛)作为微生物燃料电池阴极催化剂的最新研究进展,并分析了其可能的催化反应机制.随后,对其发展方向提出了自己的见解:1)阴极材料改性:包括金属氧化物替换、掺杂、形貌特征改变等;2)阴极材料结构形貌改性:水热合成、液相沉积、溶胶凝胶等方法.

Progress of non-precious metal oxide cathode catalysts microbial fuel cells

Microbial fue1 cell(MFC) is a device directly converting chemical energy in the organic matter into electricity with the microbial catalysts,which has been paid much attention because of its advantages of abundant resource,mild reaction condition and high theoretical efficiency.In order to clarify the research direction and development trend of non-precious metal oxide cathode catalysts,the research progress of two main non-precious metal oxide cathode catalysts(manganese dioxide and titanium dioxide) of MFC are summarized.The possible catalytic reaction mechanisms are analyzed also.Then,the application prospects of non-precious metal oxide cathode catalysts about MFC are discussed: 1) Cathode material modification,including replacement of metal oxides,doping,and morphological features change,etc.2) Cathode materials morphology modification: by hydrothermal synthesis,liquid phase deposition,sol gel method,etc.