This book contains 7 chapters and appendix. At Chapter 1 explains roughly about many kind of Carbon Materials as a Support material for fuel cell and also graphene. Method of study namely many kind of instrumentation for analysis and characterization quality of fuel cell and also material, all of them are described at Chapter 2. Chapter 3 explains deeply about many interesting things about graphene, especially for Pt sub nano clusters. In order to answer many question about formation process of Pt sub nano clusters, it can be addressed at Chapter 4. Subsequently, effect of doping nitrogen to graphene, it can be studied at Chapter 5. The support material effect such as carbon black, N-doped graphene and graphene can be studied at Chapter 6. Finally, Chapter 7 describes about conclusions and future work and support material data can be found at Appendix, respectively.