Ultrathin Nanosheets-Assembled Nickel-Based Metal-Organic Framework Microflowers for Supercapacitor Application

2022 ◽  
Author(s):  
Chong-Huan Wang ◽  
Da-Wei Zhang ◽  
Shude Liu ◽  
Yusuke Yamauchi ◽  
Fei-Bao Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Metal Organic Framework ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Supercapacitor Application ◽  
Ultrathin Nanosheets ◽  
Metal Organic ◽  
Organic Framework

Herein, we propose a solvent-assisted approach for preparing Ni-MOF microflowers with high specific capacitance and excellent rate capability as an electrode material for supercapacitors. Such high electrochemical performance is attributed...

scholarly journals Co3O4Electrode Prepared by Using Metal-Organic Framework as a Host for Supercapacitors

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Jiaqiang Jiang ◽  
Fuxiang Wei ◽  
Genxi Yu ◽  
Yanwei Sui
Keyword(s):  
Electron Microscopy ◽  
Specific Capacitance ◽  
Metal Organic Framework ◽  
High Specific Capacitance ◽  
Cobalt Nitrate ◽  
High Rate ◽  
Phase Method ◽  
Simple Liquid ◽  
Metal Organic ◽  
Organic Framework

Co3O4nanoparticles were prepared from cobalt nitrate that was accommodated in the pores of a metal-organic framework (MOF) ZIF-8 (Zn(MeIM)2, MeIM = 2-methylimidazole) by using a simple liquid-phase method. Analysis by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the obtained Co3O4was composed of separate nanoparticles with a mean size of 30 nm. The obtained Co3O4nanoparticles exhibited superior electrochemical property. Co3O4electrode exhibited a maximum specific capacitance of 189.1 F g−1at the specific current of 0.2 A g−1. Meanwhile, the Co3O4electrode possessed the high specific capacitance retention ratio at the current density ranging from 0.2 to 1.0 A g−1, thereby indicating that Co3O4electrode suited high-rate charge/discharge.

scholarly journals Electrochemical Detection of Sarcosine and Supercapacitor Based on a New Ni–Metal Organic Framework Electrode Material

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1036
Author(s):  
Shaomin Lin ◽  
Yi Wang ◽  
Chenyang Zhang ◽  
Yunying Wu ◽  
Bodong Zhang ◽  
...  
Keyword(s):  
Electrode Material ◽  
Linear Response ◽  
Hydrothermal Reaction ◽  
Metal Organic Framework ◽  
Potential Candidate ◽  
Supercapacitor Application ◽  
Intrinsic Nature ◽  
Naoh Solution ◽  
Metal Organic ◽  
Organic Framework

A new Ni metal organic framework based on 2,2′-Biphenyldicarboxylic, 4,4′- bipyridine as linker is prepared by hydrothermal reaction and directly used as an electrode material for supercapacitor and the detection of sarcosine. [Ni3(BIPY)3(BPDA)2(HCOO)2(H2O)2]n (Ni-1; BIPY = 4,4′-bipyridine; BPDA = 2,2′-Biphenyldicarboxylate) displays the specific capacitance of the Ni-1 are 667 F/gat 1 A/g and retention is 82% of initial capacitance at 1 A/g. The excellent electrochemical property is ascribed to the intrinsic nature of Ni-1. Furthermore, the sarcosine sensing performance of the Ni-1 electrode is evaluated in 0.1 M of NaOH solution and the electrode showed a wider range of linear response 1 × 10−4 M to 1 × 10−3 M. Thus, the results show that the Ni-1 is a potential candidate for not only sensing of sarcosine but also supercapacitor application.

Metal-Organic Framework (MOF-5) incorporated on NiCo2O4 as Electrode Material for Supercapacitor Application

2021 ◽  
pp. 130338
Author(s):  
S Kishore babu ◽  
M. Jayachandran ◽  
T. Maiyalagan ◽  
T. Vijayakumar ◽  
B. Gunasekaran
Keyword(s):  
Electrode Material ◽  
Metal Organic Framework ◽  
Supercapacitor Application ◽  
Metal Organic ◽  
Organic Framework

Metal–organic framework derived leaf-like CoSNC nanocomposites for supercapacitor electrodes

Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 17958-17964 ◽  
Author(s):  
Yu Wang ◽  
Qinjie Du ◽  
Haimin Zhao ◽  
Shanshan Hou ◽  
Yu Shen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Metal Organic Framework ◽  
Supercapacitor Application ◽  
Metal Organic ◽  
Enhanced Electrochemical Performance ◽  
Organic Framework

A facile strategy to fabricate leaf-like CoSNC nanocomposites with CoS2 nanoparticles embedded in N-doped carbon frameworks for enhanced electrochemical performance in supercapacitor application.

Thin niobium and iron–graphene oxide composite metal–organic framework electrodes for high performance supercapacitors

2020 ◽  
Vol 44 (29) ◽  
pp. 12664-12673 ◽  
Author(s):  
T. Eswaramoorthi ◽  
S. Ganesan ◽  
M. Marimuthu ◽  
K. Santhosh
Keyword(s):  
Graphene Oxide ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Metal Organic Framework ◽  
Pressure Tube ◽  
Oxide Composite ◽  
Metal Organic ◽  
Current Densities ◽  
Organic Framework

A new composite NbOF–GO and FeOF–GO electrode material was synthesized by the screw-capped pressure tube method for a supercapacitor with specific capacitance values of 599 and 459 F g−1 at current densities of 0.5 and 0.2 A g−1.

scholarly journals Fabrication of Hierarchical NiMoO4/NiMoO4 Nanoflowers on Highly Conductive Flexible Nickel Foam Substrate as a Capacitive Electrode Material for Supercapacitors with Enhanced Electrochemical Performance

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1143 ◽  
Author(s):  
Anil Yedluri ◽  
Tarugu Anitha ◽  
Hee-Je Kim
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Nickel Foam ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

Hierarchical NiMoO4/NiMoO4 nanoflowers were fabricated on highly conductive flexible nickel foam (NF) substrates using a facile hydrothermal method to achieve rapid charge-discharge ability, high energy density, long cycling lifespan, and higher flexibility for high-performance supercapacitor electrode materials. The synthesized composite electrode material, NF/NiMoO4/NiMoO4 with a nanoball-like NF/NiMoO4 structure on a NiMoO4 surface over a NF substrate, formed a three-dimensional interconnected porous network for high-performance electrodes. The novel NF/NiMoO4/NiMoO4 nanoflowers not only enhanced the large surface area and increased the electrochemical activity, but also provided an enhanced rapid ion diffusion path and reduced the charge transfer resistance of the entire electrode effectively. The NF/NiMoO4/NiMoO4 composite exhibited significantly improved supercapacitor performance in terms of a sustained cycling life, high specific capacitance, rapid charge-discharge capability, high energy density, and good rate capability. Electrochemical analysis of the NF/NiMoO4/NiMoO4 nanoflowers fabricated on the NF substrate revealed ultra-high electrochemical performance with a high specific capacitance of 2121 F g−1 at 12 mA g−1 in a 3 M KOH electrolyte and 98.7% capacitance retention after 3000 cycles at 14 mA g−1. This performance was superior to the NF/NiMoO4 nanoball electrode (1672 F g−1 at 12 mA g−1 and capacitance retention 93.4% cycles). Most importantly, the SC (NF/NiMoO4/NiMoO4) device displayed a maximum energy density of 47.13 W h kg−1, which was significantly higher than that of NF/NiMoO4 (37.1 W h kg−1). Overall, the NF/NiMoO4/NiMoO4 composite is a suitable material for supercapacitor applications.

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