Moox decreased catalytic agglomeration rate . all these made the pt / moox samples higher specific surface area of pt / moox microparticles in the pt / moox / gc composite electrode than pt microparticles in the pt / gc electrode Sem 、 xrd结果显示, moo _ x高度分散pt颗粒,催化剂颗粒粒径更小,减少它们的附聚速度,使催化剂有相当高的表面。