电解质
材料科学
碳化
电极
纳米颗粒
碳纳米泡沫
化学工程
碳纤维
聚乙烯醇
纳米技术
可逆氢电极
电流密度
多孔性
复合材料
复合数
化学
工作电极
工程类
物理化学
扫描电子显微镜
物理
量子力学
作者
Yaoyao Zhao,Zhengguo Zhang,Fang Wang,Shixiong Min
摘要
In this work, we develop a hierarchical carbon foam-based monolithic electrode (Co2P@HCF) from Co2+-adsorbed polyvinyl alcohol (PVA) sponge via the successive carbonization and phosphorization. Owing to the 3D hierarchical porous structure, excellent electrolyte wettability, good mechanical strength, and intimate embedding of highly dispersed Co2P nanoparticles, the Co2P@HCF electrode delivers a high current density of 1.0 A cm-2 for the hydrogen evolution reaction (HER) at ultralow overpotentials of 189.6 and 218.6 mV in 0.5 M H2SO4 and 1.0 M KOH solutions, respectively, with remarkable durability for 100 h.
科研通智能强力驱动
Strongly Powered by AbleSci AI