Bamboo fiber-derived bifunctional electrocatalyst for rechargeable Zn-air batteries

作者：Yu, Jian; Chen, Zehong; Zhong, Linxin; Yang, Wu; Li, Tingzhen; Huang, Yongfa; Peng, Xinwen^*

来源：IONICS, 2023, 29(8): 3193-3202.

DOI：10.1007/s11581-023-05009-8

• Bamboo
• Pulp and papermaking
• Nitrogen doping
• Mesoporous carbon
• Zn-air batteries

Low-cost and high-performance bifunctional electrocatalysts for efficient oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) are vital for the applications of rechargeable Zn-air batteries (ZABs). Herein, a porous carbon material is fabricated by traditional pulp and papermaking and carbonization process from bamboo. The resultant carbon paper catalyst possesses a high surface area, porous structure, and high content of nitrogen. Benefiting from these characteristics, this material exhibits remarkable ORR and OER catalytic performances. The aqueous rechargeable Zn-air batteries assembled with this catalyst exhibit a high power density of 279.5 mW cm(-2). This work paves an encouraging way for the industrial production of cost-effective catalysts in a sustainable manner.