Enhanced electrochemical behaviour of Co-MOF/PANI composite electrode for supercapacitors

Rajkumar, S.; Elaiyappillai, Elanthamilan; Nixon, Evangeline Jafneel; Lydia, I. Sharmila; Johnson, Princy Merlin

doi:10.1016/j.ica.2019.119393

Cited by 133 publications

(29 citation statements)

References 71 publications

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“…The as‐fabricated PANI and the different doped‐PANI on the carbon cloth acted as the working electrode, while a platinum sheet (0.5 × 2 cm 2 ) as the counter electrode and a saturated calomel electrode (SCE) as the reference electrode. It can be seen that all of the five CV curves represent typical pseudo‐capacitance characteristics with two pairs of redox peaks caused by the proton addition/release or ion doping/dedoping process 40,41 . Moreover, the redox currents of PANI‐Ni 2+ , PANI‐Co 2+ , PANI‐Mn 2+ , and PANI‐Cu 2+ electrodes are all higher than that of PANI.…”

Section: Resultsmentioning

confidence: 91%

The effect of polyaniline electrode doped with transition metal ions for supercapacitors

Wang

et al. 2021

Polymers for Advanced Techs

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Doping transition metal ions into polyaniline (PANI) as an attractive electrode material have been regarded as one of the crucial factors to improve the capacitive performance and the cycle stability of supercapacitors due to their excellent metal properties and good conductivity. Herein, PANI has been prepared via in situ facile and low‐cost electro‐polymerization method. At a current density of 0.2 A g−1, the supercapacitor using PANI electrode shows the specific capacitances of 203.0 F g−1 in 1 M H2SO4 electrolyte. To further improve the electrochemical activity of PANI electrode, the transition metal ions M2+ (M2+ = Ni2+, Co2+, Mn2+, and Cu2+) have been doped into PANI electrode via the same electro‐polymerization method. And the supercapacitor with the different doped‐PANI electrode generates the specific capacitances of 364.3, 326.1, 258.5, and 250.6 F g−1 respectively from PANI‐Ni2+, PANI‐Co2+, PANI‐Mn2+, and PANI‐Cu2+, which were superior to 79.5%, 60.6%,27.3%, and 23.4% of the pristine PANI based counterpart under the same test conditions and method. The favorable performances make the different doped‐PANI act as a new resource of the high performance electrode materials of supercapacitor.

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Section: Resultsmentioning

confidence: 91%

The effect of polyaniline electrode doped with transition metal ions for supercapacitors

Wang

et al. 2021

Polymers for Advanced Techs

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“…can effective way to boost electrochemical performance. [46] Besides that many reports were focused on mixed oxides for the synergistic effect of both oxides of the electrodes. Mixed metal oxides like NiO/CuO, Co 2 O 3 @Fe 2 O 3 , etc., grabbed much attention due to their high electrochemical properties like variable oxidation states, synergistic effects, and high electrical conductivity due to these properties many research studies were conducted on mixed metal oxides.…”

Section: Pseudocapacitors (Pcs)mentioning

confidence: 99%

“…Co–MOF has been reported to have a specific capacitance of 450 F g −1 at 0.5 A g −1[45] and further doping of TMOs with conductivity polymers like PANI, PEG etc. can effective way to boost electrochemical performance [46] . Besides that many reports were focused on mixed oxides for the synergistic effect of both oxides of the electrodes.…”

Section: Types Of Electrode Materialsmentioning

confidence: 99%

Recent Trends in Bimetallic Oxides and Their Composites as Electrode Materials for Supercapacitor Applications

2021

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There is a growing interest in supercapacitors as energy storage systems due to their high specific power, fast charge/discharge rates, and long cycling stability. Researchers have focused recently on developing nanomaterials to enhance the capacitive performance of supercapacitors. The inclusion of electroactive components, such as transition metal oxides (TMOs), carbonbased materials, and conducting polymers (CPs), is believed to play an important role in improving the electrochemical behavior of the electrode materials. Nevertheless, supercapacitors containing TMOs, carbon-based materials, and CPs commonly suffer from inferior ion-transport kinetics and poor electronic conductivity, which can affect the rate capability and cycling stability of the electrodes. Therefore, the development of TMO/CP and TMO/carbon-based electrode materials has gained widespread attention because they synergistically combine the advantages of both materials, enabling revolutionary applications in the electrochemical field. In general, TMOs have given good performance as electrodes for supercapacitors by further increasing the performance of the electrode when two metal cations are introduced into a single crystal structure. This Review describes and highlights recent progress in the development of bimetallic oxides regarding their design approach, configurations, and electrochemical properties for supercapacitor applications, at the same time providing new opportunities for future energy storage technologies.

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“…[ 186 ] Cobalt MOF/PANI composite was prepared by Srinivasan et al and applied as potential electrode material in energy storage devices. [ 187 ] An unprecedented high areal capacitance of 2146 mF cm −2 at 10 mV s −1 was observed in cobalt based MOF onto carbon cloth and electrically deposited PANI. [ 188 ] Shanahan et al PANI coated Zirconium based UiO‐66 MOF composite and observed its tunable semiconducting properties.…”

Section: Polyaniline Coated Mofmentioning

confidence: 99%

A review on polyaniline composites: Synthesis, characterization, and applications

2021

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Polyaniline (PANI) is one of the most studied intrinsically conducting polymers. Polyaniline inclusion with different porous materials is a very attractive research area. In this review, the preparation, properties, and applications of PANI composites have been summarized. PANI was found to be promising among the other conducting polymers and incorporated with different materials like graphene, graphene oxide, metal oxide, carbon, carbon nanotube, silica, silicon dioxide, biomolecules, and metal organic frameworks to enhance the area of application. Metal organic framework (MOF) itself has a vast area of application so incorporation of PANI with MOF can open up tremendous possibilities. An attempt has been made to draw attention to the recent spotlight research area that is, PANI‐MOF composites.

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Enhanced electrochemical behaviour of Co-MOF/PANI composite electrode for supercapacitors

Cited by 133 publications

References 71 publications

The effect of polyaniline electrode doped with transition metal ions for supercapacitors

The effect of polyaniline electrode doped with transition metal ions for supercapacitors

Recent Trends in Bimetallic Oxides and Their Composites as Electrode Materials for Supercapacitor Applications

A review on polyaniline composites: Synthesis, characterization, and applications

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