2017
DOI: 10.1039/c7ee02018j
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Degradation-induced capacitance: a new insight into the superior capacitive performance of polyaniline/graphene composites

Abstract: Degradation of PANI induces superior performance of PANI/graphene composite electrodes with the high conductivity matrix of graphene.

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Cited by 170 publications
(86 citation statements)
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“…Conducting polymers, such as polyaniline (PANI), are widely studied due to their ease of preparation, good level of electrical conductivity, redox and ion-exchange properties, and environmental stability [1][2][3][4][5][6][7][8]. However, the understanding of the stability and the mechanism of degradation of polyaniline is of great importance for possible applications [9][10][11][12][13].…”
Section: Introductionmentioning
confidence: 99%
“…Conducting polymers, such as polyaniline (PANI), are widely studied due to their ease of preparation, good level of electrical conductivity, redox and ion-exchange properties, and environmental stability [1][2][3][4][5][6][7][8]. However, the understanding of the stability and the mechanism of degradation of polyaniline is of great importance for possible applications [9][10][11][12][13].…”
Section: Introductionmentioning
confidence: 99%
“…As previously indicated the increase of the particle size of NH occurs as a result of stress generation during transformation between α and β-Ni(OH) 2 . 33 Presence of PANI network in the structure is expected to compensate the generated stress during this conversion. 8 However, the decrease of charge tranfer resistance (R ct ) for the composite electrode which was contrary to the behaviour of PANI and NH electrodes (Table 3) could not only be explained by the morphological and structural changes induced by this combination.…”
Section: Discussionmentioning
confidence: 99%
“…Additionally the appearence of the bands located at 1373, 1481, 1582, 1623 cm −1 was related to the presence of less conductive fully oxidized PE phase or degradation products. [32][33][34]…”
Section: Polyaniline Electrode (Pani)mentioning
confidence: 99%
“…Furthermore, N-and O-mediated reversible active sites and accessible fast electron and ion transport channels endow the stackable OCN free-standing films electrodes with fast and high energy storage performances beyond weight limitations of conventional electrode fabrication to a commercial level. or radicals groups grafted on polymer backbones or covalent organic frameworks or coupled with conductive carbon nanostructures, e.g., quinone, 28,29 anthraquinone-2-sulfonate, 30 2,6-diaminoanthraquinone, 31 2,5-dimethoxy-1,4-benzoquinone, 32 9, 10-phenanthrenequinone, 33 carbonyl, 34,35 oligoanilines, [36][37][38] pyridine, 39 pyrene, 40 TEMPO, 41 and (tBu 2 MeSi) 3 EC [E = Si, Ge, and Sn]; 42 (3) redox active electrolytes, e.g., TEMPO molecules, 43 viologen, 44 hydroquinone (HQ), 45,46 and TEMPO grafted polymers or ionic liquids; [47][48][49][50] (4) heteroatom-enriched carbons (HECs), e.g., nitrogen, [51][52][53] oxygen, [54][55][56] boron, [57][58][59] sulfur, 60,61 fluorine, 62 and phosphorus 63,64 (doped or co-doped). Although these emerging charged organic molecules as active centers present an excellent approach to increase the pseudocapacitance by a multi-electron faradic process, the capacitance retentions after long charge/ discharge cycles still face a challenge due to the degradation of charged organic molecules leading to irreversi...…”
Section: Progress and Potentialmentioning
confidence: 99%