[19a-C201-1~11] 8.3 Plasma nanotechnology

△ [19a-C201-1] Elucidation on effects of surface state of carbon nanowalls on electrochemical durability for fuel cell application

〇(D)Shun Imai¹, Hiroki Kondo¹, Kenji Ishikawa¹, Mineo Hiramatsu², Makoto Sekine¹, Masaru Hori³ (1.Nagoya Univ. Eng., 2.Meijo Univ., 3.Nagoya Univ. Inst. Innovation for Future Society)

Keywords:fuel cell, carbon nanowalls

For practical uses of polymer electrolyte fuel cell, highly durable catalyst supports are demanded. we are focusing on carbon nanowalls (CNWs). We already reported that CNWs fabricated by CH₄/H₂ plasma exhibit high durability which showed almost no degradation even after 20,000 cycles of potential cycle test. Though, the factor which cause this high durability of CNWs is not clarified yet. In this research, we report the effect of changing the surface state of CNWs on electrochemical durability.