Hydrothermal synthesis of Ni-based metal organic frameworks/graphene oxide composites as supercapacitor electrode materials

2020 ◽  
Vol 35 (11) ◽  
pp. 1439-1450 ◽  
Author(s):  
Fan He ◽  
Nana Yang ◽  
Kanshe Li ◽  
Xiaoqin Wang ◽  
Shaoling Cong ◽  
...  

Abstract

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Quoc Bao Le ◽  
Thanh-Huong Nguyen ◽  
Haojie Fei ◽  
Constantin Bubulinca ◽  
Lukas Munster ◽  
...  

AbstractBenzendicarboxylic acid (BDC)-based metal–organic frameworks (MOFs) have been widely utilized in various applications, including supercapacitor electrode materials. Manganese and copper have solid diamond frames formed with BDC linkers among transition metals chosen for MOF formation. They have shown the possibility to enlarge capacitance at different combinations of MOFs and polyaniline (PANI). Herein, reduced graphene oxide (rGO) was used as the matrix to fabricate electrochemical double-layer SCs. PANI and Mn/Cu-MOF's effect on the properties of electrode materials was investigated through electrochemical analysis. As a result, the highest specific capacitance of about 276 F/g at a current density of 0.5 A/g was obtained for rGO/Cu-MOF@PANI composite.


2021 ◽  
Vol 21 (9) ◽  
pp. 4670-4674
Author(s):  
Hye-Jin Oh ◽  
Yongju Jung ◽  
Seok Kim

As one of the energy storage systems, supercapacitors have quite long charge-discharge cycle life. Among many kinds of electrode materials, metal organic frameworks (MOFs) have unique properties such as high specific surface areas and large pore volume as supercapacitor electrode materials. Nickel-MOFs consist of binary ligand such as 1,3,5-Trimesic acid (H3BTC) and terephthalic acid (TPA) were used as working electrode materials in three electrode cell for capacitor system. When synthesizing MOFs, it is possible to prepare uniform crystals using hydrothermal synthesis. The morphology of composites was analyzed by field emission scanning electron microscopy (FE-SEM). Electrochemical properties were measured by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) in 6M KOH electrolyte.


Author(s):  
Matheus Ireno da Silva ◽  
Ítalo R. Machadoa ◽  
Henrique E. Toma ◽  
Koiti Araki ◽  
Lúcio Angnes ◽  
...  

Metal–organic frameworks (MOFs) are being extensively reported as ideal templates or precursors for energy storage and conversion materials thanks to their unique architectures with high surface area, high ordered porosity,...


2018 ◽  
Vol 10 (23) ◽  
pp. 2722-2730 ◽  
Author(s):  
Li Jing Ling ◽  
Jing Ping Xu ◽  
Yan Hua Deng ◽  
Qian Peng ◽  
Jian Hua Chen ◽  
...  

Schematic of the preparation process of NH2-MIL-125/RGO/GCE.


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