A Self-Ordered,Crystalline Glass,Mesoporous Nanocomposite with High Proton Conductivity of 2 X 10~(-2)S cm~(-1)at Intermediate Temperature

摘要

Fuel cells are an extremely attractive energy conversion system for use in many industrial applications,including electric vehicles(EV)and on-site power plant,due to their inherently higher efficiency and lower emission when compared to that of internal combustion engines.Especially,the operation of proton exchange membrane fuel cell(PEMFC)at intermediate temperature(130- 200 deg C)has been considered to provide many advantages,such as improved CO tolerance of the Pt electrode,the reduction of the amount of Pt electrode materials,the higher energy efficiency,heat management,and cogenerations.