A fuel cell catalyst system includes a catalyst and a catalyst support material binding the catalyst and including an anticorrosive, conductive material having oxygen vacancies and a formula (I): MgTi2O5-δ  (I), where δ is any number between 0 and 3 optionally including a fractional part denoting the oxygen vacancies, the material having an electronic conductivity of about 2-10 S/m at room temperature in an ambient environment.