Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

AbstractIn this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The AC/SIFSIX-3-Ni composites are coated onto the aluminum substrate using the doctor blade method and conducted an ion-gel electrolyte to produce a symmetrical supercapacitor. The electrochemical properties of the AC/SIFSIX-3-Ni composite-based supercapacitor are evaluated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge tests (GCD). The AC/SIFSIX-3-Ni composite-based supercapacitor showed reasonable capacitive behavior in various electrochemical measurements, including CV, EIS, and GCD. The highest specific capacitance of the AC/SIFSIX-3-Ni composite-based supercapacitor was 129 F g−1 at 20 mV s−1.

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Capacitive behavior of functionalized activated carbon-based all-solid-state supercapacitor

Carbon letters ◽

10.1007/s42823-020-00219-w ◽

2021 ◽

Author(s):

Kyu Seok Lee ◽

Ye Ji Seo ◽

Hyeon Taek Jeong

Keyword(s):

Cyclic Voltammetry ◽

Activated Carbon ◽

Solid State ◽

Specific Capacitance ◽

Electrochemical Impedance ◽

Electrochemical Performances ◽

Galvanostatic Charge ◽

Capacitive Behavior ◽

Charge Discharge ◽

Discharge Curves

AbstractIn this report, we incorporate activated carbon (AC) onto aluminum substrate via doctor blade method to produce an all-solid-state supercapacitor. The electrochemical properties of the all-solid-state supercapacitor were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Galvanostatic charge/discharge tests also were carried out to exhibit stability of the AC-based supercapacitor. The impedance and charge/discharge curves of the all-solid-state supercapacitor showed good capacitive behavior after functionalized AC. The highest specific capacitance obtained for the AC-based supercapacitor was 106 F g−1. About 160% of specific capacitance increased after functionalization of the AC, which indicated that modification of the AC by nitric acid was able to introduce functional groups on the AC and improve its electrochemical performances.

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Study on Activated Carbon /Polyaniline Electrode Materials for Supercapacitorsts

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.97-101.1582 ◽

2010 ◽

Vol 97-101 ◽

pp. 1582-1585 ◽

Cited By ~ 1

Author(s):

Yan Hong Tian ◽

Bo Rong Wu ◽

Ding Wen Mao

Keyword(s):

Activated Carbon ◽

Composite Electrode ◽

Electrode Materials ◽

Electrochemical Impedance ◽

Reference Electrode ◽

Bet Surface Area ◽

Electrochemical Performances ◽

Galvanostatic Charge ◽

Composite Surface ◽

Pani Composite

Activated carbon (AC)/polyaniline (PANI) composite electrode materials were synthesized in this article. The effect of preparation such as BET surface area and porous size of AC on the electrochemical performances of AC/PANI composite material was investigated. The electrochemical performances of the composite were tested with cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectrometry in 6mol/L KOH solution using Hg/HgO as reference electrode. Composite surface morphology was examined by scanning electron microscope (SEM). The result shows that when the ratio of AC to aniline increases, the conversion of aniline and the capacitance value of composite also increase in keeping the ratio of AC to aniline constant. When AC: aniline : (NH4)2S2O8 =7:1:1, the conversion of aniline up to more than 95% and the capacitance value of electrode materials increased from 239F/g(pure AC) to 409F/g, which is 71.1% higher than pure AC. Pore structure of AC also has great effect on electrochemical performances of electrode material. With the increase of proportion of mesoporous, the electrochemical properties of composite are greatly increased.

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Facile synthesis of nickel-based metal organic framework [Ni3(HCOO)6] by microwave method and application for supercapacitor

Functional Materials Letters ◽

10.1142/s1793604718500303 ◽

2018 ◽

Vol 11 (02) ◽

pp. 1850030 ◽

Cited By ~ 1

Author(s):

Jujie Luo ◽

Xing Yang ◽

Shumin Wang ◽

Yuhong Bi ◽

Amit Nautiyal ◽

...

Keyword(s):

Electrochemical Impedance ◽

Metal Organic Framework ◽

Microwave Method ◽

X Ray Diffraction ◽

Galvanostatic Charge ◽

Facile Synthesis ◽

X Ray ◽

Irradiation Power ◽

Metal Organic ◽

Organic Framework

The metal organic framework (MOF) [Ni3(HCOO)6] was synthesized via the simple and fast microwave method, and the effect of irradiation power on crystallinity of synthesized Ni-based MOF was studied. The samples were characterized by using Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The synthesized Ni-based MOF was electrochemically characterized by using galvanostatic charge–discharge (GCD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) techniques. The synthesized MOF showed the highest specific capacitance of 1196.2[Formula: see text]F/g at 1[Formula: see text]A/g with excellent cyclability (86.04% capacitance retention after 2,000 cycles), thereby demonstrating its potential application in supercapacitors.

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Nitric Acid Activated Carbon Aerogels for Supercapacitors

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.302.158 ◽

2013 ◽

Vol 302 ◽

pp. 158-164 ◽

Cited By ~ 1

Author(s):

Ya Jie Li ◽

Xing Yuan Ni ◽

Jun Shen ◽

Dong Liu ◽

Nian Ping Liu

Keyword(s):

Activated Carbon ◽

Nitric Acid ◽

Electrochemical Impedance ◽

Carbon Aerogels ◽

Electrochemical Performances ◽

Galvanostatic Charge ◽

Sem Images ◽

Resorcinol Formaldehyde ◽

Charge Discharge ◽

Discharge Test

The electrochemical performances of resorcinol–formaldehyde-based carbon aerogels can be significantly enhanced by nitric acid activation.FT-IR spectra and SEM images reveal the constitution and morphology of samples .The electrochemical performances of materials were tested by cyclic voltammetry,galvanostatic charge/discharge test ,electrochemical impedance spectroscopy and cyclic test. The results show that activation does not influence the molecular structure of carbon aerogels,which maintains their nano-porous structure. Activation increases the specific capacitance by 50% and improves the conductivity of carbon aerogels,resulting in fenfect cycling stability. So nitric acid activated carbon aerogels is an ideal electrode material for supercapacitors.

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Synthesis of nickel-metal organic framework nanoplates with pyridine modulation and application to supercapacitors

Journal of Energy Storage ◽

10.1016/j.est.2021.102528 ◽

2021 ◽

Vol 38 ◽

pp. 102528

Author(s):

Sufeng Wang ◽

Ji Wang ◽

Min Zeng ◽

Jianhua Yang ◽

Nantao Hu ◽

...

Keyword(s):

Metal Organic Framework ◽

Nickel Metal ◽

Metal Organic ◽

Organic Framework

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Water Photo-Electrooxidation Using Mats of TiO2 Nanorods, Surface Sensitized by a Metal–Organic Framework of Nickel and 1,2-Benzene Dicarboxylic Acid

Hydrogen ◽

10.3390/hydrogen2010004 ◽

2021 ◽

Vol 2 (1) ◽

pp. 58-75

Author(s):

Sheng-Mu You ◽

Waleed M. A. El Rouby ◽

Loïc Assaud ◽

Ruey-An Doong ◽

Pierre Millet

Keyword(s):

Dicarboxylic Acid ◽

Electrochemical Impedance ◽

Metal Organic Framework ◽

Linear Sweep Voltammetry ◽

Tio2 Nanorods ◽

Tem Analysis ◽

Vis Spectroscopy ◽

Metal Organic ◽

Benzene Dicarboxylic Acid ◽

Organic Framework

Photoanodes comprising a transparent glass substrate coated with a thin conductive film of fluorine-doped tin oxide (FTO) and a thin layer of a photoactive phase have been fabricated and tested with regard to the photo-electro-oxidation of water into molecular oxygen. The photoactive layer was made of a mat of TiO2 nanorods (TDNRs) of micrometric thickness. Individual nanorods were successfully photosensitized with nanoparticles of a metal–organic framework (MOF) of nickel and 1,2-benzene dicarboxylic acid (BDCA). Detailed microstructural information was obtained from SEM and TEM analysis. The chemical composition of the active layer was determined by XRD, XPS and FTIR analysis. Optical properties were determined by UV–Vis spectroscopy. The water photooxidation activity was evaluated by linear sweep voltammetry and the robustness was assessed by chrono-amperometry. The OER (oxygen evolution reaction) photo-activity of these photoelectrodes was found to be directly related to the amount of MOF deposited on the TiO2 nanorods, and was therefore maximized by adjusting the MOF content. The microscopic reaction mechanism which controls the photoactivity of these photoelectrodes was analyzed by photo-electrochemical impedance spectroscopy. Microscopic rate parameters are reported. These results contribute to the development and characterization of MOF-sensitized OER photoanodes.

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