PEMFC阳极抗H2S性能研究进展

Research progress on anode H2S-tolerance of PENFC

质子交换膜燃料电池(PEMFC)采用重整气为燃料时,阳极气体杂质是影响其性能的主要原因。目前燃料电池阳极杂质对膜电极性能影响主要集中在对CO的研究上,而杂质中H_(2)S对膜电极影响的报道较少,但事实上H_(2)S对电池性能的影响比CO的影响更严重。本文综述了质子交换膜燃料电池(PEMFC)的H_(2)S中毒机理,从增设过滤器、纯净氢气法、电化学恢复、抗硫中毒催化剂四个方面详细介绍了目前抗H_(2)S研究的发展现状。

When reformate gas is used as fuel for proton exchange membrane fuel cell(PEMFC),the impurity of anode gas is the main reason that affects the performance of PEMFC.At present,the research mainly focuses on CO-poisoning on PEMFC,while the research on anode H_(2)S-tolerance is seldom.However,the influence of H_(2)S on PEMFC performance is more serious than that of CO.In this paper,the mechanism of H_(2)S poisoning in PEMFC is reviewed,and the current development of H_(2)S-tolerance research is introduced in detail from four aspects:adding filter,pure hydrogen method,electrochemical recovery and H_(2)S-tolerance electrocatalyst.