A computational exploration of the oxygen reduction reaction over a carbon catalyst containing a phosphinate functional group

Abstract

Oxygen reduction reaction (ORR) over a carbonaceous catalyst (1) with a phosphinate (>P(O)OH) moiety was explored computationally. Under the acidic environment of a fuel cell, 1 could be active for ORR and be converted to 2 with a >P(OH)₂ moiety. An edge phosphinate could be active for both 2- and 4-electron ORR.