Cobalt (II) phthalocyanine (CoPc) supported on graphene (CVD), carbon black (Vulcan XC72), multi walled carbon nanotube (MWCNT) and their mixtures were evaluated as electrocatalysts for oxygen reduction reaction in acid electrolytes and polymer electrolyte membrane fuel cells (PEMFC). Graphene (G) and carbon supported CoPc catalysts were prepared by impregnation method. Three different temperatures (800 °C, 650 °C and 500 °C) were studied to examine the effect of heat treatment on CoPc and the best fuel cell performance was obtained with samples heat-treated at 800 °C. Maximum power densities of CoPc/G, CoPc/Vulcan-G, CoPc/MWCNT-G, CoPc/MWCNT, CoPc/Vulcan and CoPc/Vulcan-MWCNT at 60 °C cell temperature, 100% humidity and 5 psi back pressure were found as 102, 171, 179, 189, 296, 303 mW cm −2 , respectively. CVD graphene with CoPc was forming impermeable layer-structure causing mass transport limitations and lower performance. Performance enhancements were achieved by he...

中文翻译：

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混合碳-石墨烯载体钴（II）酞菁作为燃料电池阴极

评估了负载在石墨烯（CVD）上的酞菁钴（CoPc），炭黑（Vulcan XC72），多壁碳纳米管（MWCNT）及其混合物在酸性电解质和聚合物电解质膜燃料电池中作为氧还原反应的电催化剂（ PEMFC）。通过浸渍法制备了石墨烯（G）和碳载CoPc催化剂。研究了三种不同的温度（800°C，650°C和500°C），以研究热处理对CoPc的影响，并且在800°C热处理的样品中获得了最佳的燃料电池性能。在60°C电池温度，100％湿度和5 psi背压下发现CoPc / G，CoPc / Vulcan-G，CoPc / MWCNT-G，CoPc / MWCNT，CoPc / Vulcan和CoPc / Vulcan-MWCNT的最大功率密度分别为102、171、179、189、296、303 mW cm -2。具有CoPc的CVD石墨烯正在形成不可渗透的层结构，从而导致了传质限制​​和性能下降。他通过...提高了性能。