2005 Volume 2005 Issue 218 Pages 155-158
Intercalation of metal chlorides into fine natural graphite flakes of 2×10-6m in diameter was attempted. CuCl2 was satisfactorily intercalated from the vapour phase. NiCl2 and PdCl2 were also intercalated from the liquid phase using chloroform solvent. The reduction products of obtained graphite intercalation compounds were used as carbon supports of the platinum electrocatalyst for the polymer electrolyte fuel cell. The oxygen reduction activity was evaluated and it can be seen that natural graphite flakes with the treatment using intercalation technique provide different level of activity from that of pristine natural graphite flakes.