儿茶酚
化学
超级电容器
单体
材料科学
碳纤维
杂原子
电化学
化学工程
无机化学
聚合物
高分子化学
电极
有机化学
戒指(化学)
复合材料
物理化学
工程类
复合数
作者
Ying Chang,Conghui Yuan,Cheng Liu,Jie Mao,Yuntong Li,Haiyang Wu,Yuzhe Wu,Yiting Xu,Birong Zeng,Lizong Dai
标识
DOI:10.1016/j.jpowsour.2017.08.106
摘要
A novel strategy has been developed to generate B, N co-doped carbon materials (CNBs) through the pyrolysis of boronate polymer nanoparticles (BPNs) derived from the condensation reaction between catechol and boronic monomers. The morphology, surface area and heteroatom (viz. B and N) content of the CNBs can be easily adjusted by altering the molar ratio between catechol and boronic monomers. The supercapacitor and oxygen reduction reaction (ORR) performance of the CNBs are optimized. CNBs derived from equal molar ratio of catechol and boronic monomers exhibit favorable performance for supercapacitor, featuring a specific capacitance of up to 299.4 F/g at 0.2 A/g, an improved rate capability and excellent cycle stability. Notably, CNBs prepared using 1/2 molar ratio of catechol to boronic monomers show excellent ORR performance, as they demonstrate good electrocatalytic activity, high tolerance for methanol and long durability. Our findings may be of interest in the design of carbon materials with optimized electrochemical properties through the control over surface area and the content of heteroatom.
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