期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 13, 页码 15315-15323出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c01339
关键词
battery-supercapacitor-hybrid; MOF; Fe-based; FeOOH; phase transformation
资金
- Natural Science Foundation of Jiangsu Province [BK20180514, BK20190503, BK20131314]
- National Natural Science Foundation of China [21371098, 21901120]
- China Scholarship Council [201906855022]
- City University of Hongkong
- 111 Project [D20015]
Two-dimensional Fe-based metal-organic framework (FeSC1) and one-dimensional coordination polymer (FeSC2) were synthesized through reaction among FeSO4 center dot 7H(2)O, the tripodal ligand 4,4',4 ''-s-triazine-2,4,6-triyl-tribenzoate (H(3)TATB), and flexible secondary building blocks p/m-bis((1H-imidazole-1-yl)methyl)benzene (bib). Both materials showed outstanding electrochemical performances, with charge storage mainly dominated by diffusion-controlled section through power-law equations (i proportional to v(0.5)). Long-term cycling loops also revealed partial phase transformations to more stable FeOOH.
One two-dimensional Fe-based metal-organic framework (FeSC1) and one one-dimensional coordination polymer (FeSC2) have been solvothermally prepared through the reaction among FeSO4 center dot 7H(2)O, the tripodal ligand 4,4',4 ''-s-triazine-2,4,6-triyl-tribenzoate (H(3)TATB), and flexible secondary building blocks p/m-bis((1H-imidazole-1-yl)methyl)benzene (bib). Given that their abundant interlayer spaces and different coordination modes, two compounds have been employed as battery-type electrodes to understand how void space and different coordination modes affect their performances in three-electrode electrochemical systems. Both materials exhibit outstanding but different electrochemical performances (including distinct capacities and charge-transfer abilities) under three-electrode configurations, where the charge storage for each electrode material is mainly dominated by the diffusion-controlled section (i proportional to v(0.5)) through power-law equations. Additionally, the partial phase transformations to more stable FeOOH are also detected in the long-term cycling loops. After coupling with the capacitive carbon-based electrode to assemble into the semi-solid-state battery-supercapacitor-hybrid (sss-BSH) devices, the sss-FeSC1//AC BSH device delivers excellent capacitance, superior energy and power density, and longstanding endurance as well as the potential practical property.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据