Patent ID: 7718304

Claim:
An electrode used to form a fuel cell, the electrode comprising: a support; and a catalyst layer formed on the support, the catalyst layer comprising: a support catalyst, and a proton conductor having an amorphous phase of 60% by weight or more, the proton conductor comprising: at least one material selected from the group consisting of B 2 O 3 , ZrO 2 , SiO 2 , WO 3 , and MoO 3 ; and P 2 O 5 , wherein an amount of the proton conductor is in a range of 0.5 to 60 parts by weight based on 100 parts by weight of the support catalyst, and wherein the weight ratio of P 2 O 5 to B 2 O 3 is in a range of 1:0.12 to 1:0.40.