文献类型：期刊文献

英文题名：ZnO-MnO₂ co-modified hierarchical porous carbon nanofiber film electrodes for high-energy density supercapacitors

作者：Luo, Yongmei Li, Junqi Chen, Chaoyi Liu, Wei

第一作者：Luo, Yongmei;罗咏梅

通信作者：Li, JQ[1]

机构：[1]Guizhou Univ, Sch Mat & Met, Guiyang 550025, Peoples R China;[2]Guizhou Inst Technol, Guiyang 550025, Peoples R China

第一机构：Guizhou Univ, Sch Mat & Met, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Mat & Met, Guiyang 550025, Peoples R China.

年份：2025

卷号：15

期号：1

外文期刊名：SCIENTIFIC REPORTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001428453400039)】；

基金：This research was funded by National Natural Science Foundation of China (52274260, 52164017, 52074096, 52263004), Guizhou Provincial Science and Technology Projects GCC ([2023] 017), Innovative young scientific and technological talents training projects of Guiyang City (Zhu Ke He Tong [2024] 2-12), Guizhou Provincial Science and Technology Projects (Qian Ke He Ji Chu-ZK [2022] Yi Ban 179).

语种：英文

摘要：This study focuses on preparing composite hierarchical porous carbon nanofiber film that includes ZnO and MnO2. Using electrospinning technology, hierarchical porous structure was introduced into the nanofibers, enhancing energy density through the synergistic effect of zinc oxide and manganese dioxide. The zinc-manganese dioxide co-modified hierarchical porous carbon nanofiber film (ZnMnO-HPC) exhibits outstanding electrochemical performance when used as supercapacitor electrode, with a specific capacity reaching 401.77 C/g at 0.5 A/g, and 201.29 C/g at high current density of 5 A/g. ZnMnO-HPC also exhibits remarkable energy density when assembled with activated carbon electrode into asymmetric capacitor, reaching 38.37 Wh/kg at a power density of 407 W/kg and 19.5 Wh/kg at a power density of 12,800 W/kg, indicating promising applications in the high-energy-density supercapacitor field.