期刊
CHEMISTRYSELECT
卷 7, 期 26, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202202076
关键词
energy storage; lanthanides; MOF; pyridine-2; 6-dicarboxylic acid; symmetric supercapacitor
资金
- CSIR, Govt. of India [09/084(0751)/2019-EMR-I]
- DST
- SERB, Govt. of India [DST/TMD/SERI/HUB/1, CRG/2020/006143]
- DST, Govt. of India [DST/TMD/SERI/HUB/1, CRG/2020/006143]
Rare earth based metal-organic frameworks (RE-MOFs) are important in energy storage applications. In this study, two new RE-MOFs (Ln-H(2)PDA, Ln=La and Sm) were synthesized using pyridine-2,6-dicarboxylic acid linker. These MOFs showed high specific capacity and the symmetric Swagelok device using Sm-H(2)PDA MOF as working electrodes delivered high energy density and power density.
Rare earth based metal-organic frameworks (RE-MOFs) are gaining importance in energy storage applications. Herein, we report the synthesis of two new RE-MOFs (Ln-H(2)PDA, Ln=La and Sm) under hydrothermal conditions using pyridine-2,6-dicarboxylic acid (H(2)PDA) linker. The single-crystal analysis revealed that La-H(2)PDA MOF crystallizes into monoclinic system with P 21/c space group. Sm-H(2)PDA MOF also has the same crystal system, which is confirmed by powder X-ray diffraction pattern. These MOFs are evaluated for their charge storage behaviour using conventional 3-electrode system. Both La-H(2)PDA and Sm-H(2)PDA delivered high specific capacity of 220 C g(-1) (488 F g(-1)) and 711 C g(-1) (1580 F g(-1)) at a current density of 1 A g(-1), respectively. Furthermore, a symmetric Swagelok device (Sm-H(2)PDA parallel to Sm-H(2)PDA) has been fabricated using Sm-H(2)PDA MOF as working electrodes. The maximum energy density and power density delivered by this device are 18 Wh kg(-1) and 3744 W kg(-1).
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