Co_(3)(PO_(4))_(2)@rGO-900复合催化剂在析氧反应、锌-空气电池中的应用  

Application of Co_(3)(PO_(4))_(2)@rGO-900 composite catalyst in OER and zinc-zir battery

作　　者：陈苏苹 李水根 黄凡 许钧玮 张娜 李玉龙 谢翔宇 CHEN Suping;LI Shuigen;HUANG Fan;XU Junwei;ZHANG Na;LI Yulong;XIE Xiangyu(Xinyu University,Xinyu 338004 China)

机构地区：[1]新余学院新能源科学与工程学院,江西新余338004

出　　处：《新余学院学报》2025年第2期1-7,共7页Journal of Xinyu University

基　　金：江西省科学技术厅项目“柔性钙钛矿太阳电池有机阳离子的解离抑制及性能优化”(20202BAB204001);新余学院重点科研项目“高性能磷酸铁锂正极材料的制备及应用研究”(XJZD1901);江西省大学生创新创业训练项目“磷酸钴复合催化剂在OER、锌-空气电池中的应用”(S202411508003);江西省大学生创新创业训练项目“用于非酶葡萄糖传感器的NH4NiPO4@MOF复合材料”(S202411508005)。

摘　　要：采用水热法合成了一种磷酸钴与还原型氧化石墨烯的复合材料(Co_(3)(PO_(4))_(2)@rGO)。通过烧结温度的调控,制备了微米级形貌的磷酸盐(2μm)。电化学测试表明,900℃下制得的样品(Co_(3)(PO_(4))_(2)@rGO-900)表现出良好的析氧反应催化活性(100 mA/cm^(2)下过电位为422 mV,Tafel斜率为103.53 mV/dec)和稳定性。以Co_(3)(PO_(4))_(2)@rGO-900为空气阴极催化剂组装的锌-空气电池器件也表现出良好的催化性能(最大功率密度达62.1 mW/cm)。This study used hydrothermal method to synthesize a composite material of cobalt phosphate and reduced graphene oxide(Co_(3)(PO_(4))_(2)@rGO).By controlling the sintering temperature,micrometer sized phosphates(2μm)were prepared.The oxygen evolution reaction(OER)was studied by electrochemical measurements,and the sample(Co_(3)(PO_(4))_(2)@rGO-900)sintered at 900℃exhibited good OER catalytic activity(with an overpotential of 422 mV at 100 mA/cm^(2)and a Tafel slope of 103.53 mV/dec)and stability.The zinc-air battery device assembled with it as an air cathode catalyst also exhibits excellent catalytic performance(maximum power density of 62.1 mW/cm^(2)).

关 键 词：Co_(3)(PO_(4))_(2) 还原型氧化石墨烯 氧析出反应 锌-空气电池 

分 类 号：TM911[电气工程—电力电子与电力传动]