Abstract
High surface area carbons are used as electrocatalyst supports for noble metal particles in phosphoric acid fuel cells. Under operating conditions at high temperature (in excess of 200°C), the carbon support corrodes. An examination of the corrosion characteristics of various carbons as a function of electrode potential, acid temperature and carbon treatments is given. Since efficient catalyzation of the carbon requires small noble metal electrocatalyst particles, a high surface area carbon is required. The influence of heat treatment on commercial carbons shows a decrease in dispersion for the noble metals, although the heat treatment stabilizes the carbons against corrosive degradation. Correlations between the electrochemical properties of the carbons and the X-ray diffraction ( c 2 ) lattice parameters were observed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
