Powering Cell Phones with Fuel Cells Running on Renewable Fuels

Dr. Ruiming Zhang

关键词: CATALYSTS;    CATHODES;    CORROSION;    CROSSING-OVER;    ENERGY DENSITY;    FORMIC ACID;    FUEL CELLS;    LIFETIME;    OPTIMIZATION Batteries Cell Phones Fuel Cells Renewable Fuels Formic Acid;   

DOI  :  10.2172/899684
RP-ID  :  DOE/GO14325/1
PID  :  OSTI ID: 899684
Others  :  TRN: US200711%%598

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The major goals of this project were to increase lifetime, increase energy density, and reduce material costs. The combination of identifying corrosion resistant materials and changing catalysts increased lifetimes. Work to increase the energy density included increasing the concentration of the formic acid fuel from 12M (ca. 50 wt%) to 22M (ca. 85 wt%) and decreasing the amount of fuel crossing over. The largest expense of the device is the cathode catalyst. At the beginning of the project Pt loading was over 8 mg/cm2 on our cathodes. Through optimization work we managed to bring down the cathode loading to approximately half of what we started with.