Phenothiazine/reduced graphene oxide composite as a pseudocapacitive cathode for lithium ion capacitors

Chen, Jiao-Juan; Fan, Leqing; Wu, Zheng-Xue; Deng, Xu-Geng; Tang, Tao; Huang, Yunfang; Wu, Jihuai

doi:10.1016/j.electacta.2022.141340

Cited by 3 publications

(2 citation statements)

References 53 publications

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“…Unlike batteries, where electrode reactions occur within the volume of electrodes and depend on the diffusion rate of electrolyte ions, SCs store energy at the electrode/electrolyte interface due to the formation of an electric double layer (EDL) [7][8][9][10]. A considerable contribution to the energy storage in SCs is also provided by pseudocapacitance resulting from fast redox Faraday reactions [11][12][13][14]. The electrochemical process takes place on the surface, which leads to a higher flow rate due to the absence of diffusion hindrance.…”

Section: Introductionmentioning

confidence: 99%

Advanced Electrode Coatings Based on Poly-N-Phenylanthranilic Acid Composites with Reduced Graphene Oxide for Supercapacitors

et al. 2023

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The electrochemical behavior of new electrode materials based on poly-N-phenylanthranilic acid (P-N-PAA) composites with reduced graphene oxide (RGO) was studied for the first time. Two methods of obtaining RGO/P-N-PAA composites were suggested. Hybrid materials were synthesized via in situ oxidative polymerization of N-phenylanthranilic acid (N-PAA) in the presence of graphene oxide (GO) (RGO/P-N-PAA-1), as well as from a P-N-PAA solution in DMF containing GO (RGO/P-N-PAA-2). GO post-reduction in the RGO/P-N-PAA composites was carried out under IR heating. Hybrid electrodes are electroactive layers of RGO/P-N-PAA composites stable suspensions in formic acid (FA) deposited on the glassy carbon (GC) and anodized graphite foil (AGF) surfaces. The roughened surface of the AGF flexible strips provides good adhesion of the electroactive coatings. Specific electrochemical capacitances of AGF-based electrodes depend on the method for the production of electroactive coatings and reach 268, 184, 111 F∙g–1 (RGO/P-N-PAA-1) and 407, 321, 255 F∙g–1 (RGO/P-N-PAA-2.1) at 0.5, 1.5, 3.0 mА·cm–2 in an aprotic electrolyte. Specific weight capacitance values of IR-heated composite coatings decrease as compared to capacitance values of primer coatings and amount to 216, 145, 78 F∙g–1 (RGO/P-N-PAA-1IR) and 377, 291, 200 F∙g–1 (RGO/P-N-PAA-2.1IR). With a decrease in the weight of the applied coating, the specific electrochemical capacitance of the electrodes increases to 752, 524, 329 F∙g–1 (AGF/RGO/P-N-PAA-2.1) and 691, 455, 255 F∙g–1 (AGF/RGO/P-N-PAA-1IR).

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Section: Introductionmentioning

confidence: 99%

Advanced Electrode Coatings Based on Poly-N-Phenylanthranilic Acid Composites with Reduced Graphene Oxide for Supercapacitors

et al. 2023

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“…The combination of advantages of batteries and SCs can be achievable in the hybrid SCs based on conductive polymers and carbon nanomaterials, where energy is stored at the electrode/electrolyte interface using double-layer capacitance and Faraday pseudocapacitance [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. This type of a system with two energy storage mechanisms requires the development of highly efficient electrode materials that determine the capacitance, energy density, and specific power of SCs [ 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Hybrid Electrode Coatings Based on Conjugated Polyacid Ternary Nanocomposites for Supercapacitor Applications

et al. 2023

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Electrochemical behavior of novel electrode materials based on polydiphenylamine-2-carboxylic acid (PDPAC) binary and ternary nanocomposite coatings was studied for the first time. Nanocomposite materials were obtained in acidic or alkaline media using oxidative polymerization of diphenylamine-2-carboxylic acid (DPAC) in the presence of activated IR-pyrolyzed polyacrylonitrile (IR-PAN-a) only or IR-PAN-a and single-walled carbon nanotubes (SWCNT). Hybrid electrodes are electroactive layers of stable suspensions of IR-PAN-a/PDPAC and IR-PAN-a/SWCNT/PDPAC nanocomposites in formic acid (FA) formed on the flexible strips of anodized graphite foil (AGF). Specific capacitances of electrodes depend on the method for the production of electroactive coatings. Electrodes specific surface capacitances Cs reach 0.129 and 0.161 F∙cm−2 for AGF/IR-PAN-a/PDPACac and AGF/IR-PAN-a/SWCNT/PDPACac, while for AGF/IR-PAN-a/PDPACalk and AGF/IR-PAN-a/SWCNT/PDPACalk Cs amount to 0.135 and 0.151 F∙cm−2. Specific weight capacitances Cw of electrodes with ternary coatings reach 394, 283, 180 F∙g−1 (AGF/IR-PAN-a/SWCNT/PDPACac) and 361, 239, 142 F∙g−1 (AGF/IR-PAN-a/SWCNT/PDPACalk) at 0.5, 1.5, 3.0 mA·cm−2 in an aprotic electrolyte. Such hybrid electrodes with electroactive nanocomposite coatings are promising as a cathode material for SCs.

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Composites Based on Poly(Diphenylamine-2-carboxylic Acid) and Highly Porous Carbon for Flexible Electrodes of Supercapacitors

Tkachenko,

Ozkan,

Petrov

et al. 2023

Polym. Sci. Ser. B

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Phenothiazine/reduced graphene oxide composite as a pseudocapacitive cathode for lithium ion capacitors

Cited by 3 publications

References 53 publications

Advanced Electrode Coatings Based on Poly-N-Phenylanthranilic Acid Composites with Reduced Graphene Oxide for Supercapacitors

Advanced Electrode Coatings Based on Poly-N-Phenylanthranilic Acid Composites with Reduced Graphene Oxide for Supercapacitors

Novel Hybrid Electrode Coatings Based on Conjugated Polyacid Ternary Nanocomposites for Supercapacitor Applications

Composites Based on Poly(Diphenylamine-2-carboxylic Acid) and Highly Porous Carbon for Flexible Electrodes of Supercapacitors

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