将槟榔原料与一定量的磷酸氢二铵均匀混合，在氮气气氛下制备氮磷共掺杂生物质炭，再与KOH二次煅烧生成孔隙结构发达的杂原子掺杂多孔碳。电化学测试结果表明，杂原子掺杂碳催化剂材料的ORR （氧还原）活性良好，具有优异的稳定性和抗中毒特性。组装的锌-空气电池的测试结果显示，无金属催化剂可与商业20% Pt/C催化剂性能相媲美，表明以生物质为基础的氮磷共掺杂活性炭是一种很有商业价值的氧还原催化剂材料。

Nitrogen and phosphorus co-doped biochar is prepared by mixing betel nut with a certain amount of diamine hydrogen phosphate in the atmosphere of nitrogen,and then calcined with KOH to form a heteroatom doped porous carbon with developed pore structure.It is indicated through electrochemical test that the heteroatom doped carbon catalyst material has excellent ORR (oxygen reduction reaction) activity,excellent stability and strong resistance to poisoning.When a zinc-air battery is assembled with the carbon material,the test results show that the metal-free catalyst performs as well as the commercially purchased 20% Pt/C catalyst,indicating that biomass-based nitrogen/phosphorus co-doped activated carbon is a commercially valuable OPR catalyst material.

宋雨蔷(1996-),女,硕士研究生,研究方向为电化学,1301734031@qq.com;邢献军(1964-),男,博士,教授,主要从事先进能源技术与装备研究,通讯联系人,xxianjun@hfut.edu.cn。