Polypyrrole directly bonded to air-plasma activated carbon nanotube as electrode materials for high-performance supercapacitor

Directly‐Grown Hierarchical Carbon Nanotube@Polypyrrole Core–Shell Hybrid for High‐Performance Flexible Supercapacitors

“…[20,21] However, PPybased pseudocapacitors stillsuffer from limited cycling stability and high interfacial resistance. [23,24] Among the various PPy-based hybrids, most research interests focused on the PPy-carbon nanotube (CNT) hybrid electrode for pseudocapacitor applications over the last several years because CNTsp rovide ideal electron-conduction pathways as well as ar esilients keleton and good percolation. [23,24] Among the various PPy-based hybrids, most research interests focused on the PPy-carbon nanotube (CNT) hybrid electrode for pseudocapacitor applications over the last several years because CNTsp rovide ideal electron-conduction pathways as well as ar esilients keleton and good percolation.…”

“…[22] Thus, to solve these critical issues in PPy-basedp seudocapacitors, an umber of hybrid materials have been studied. [23,24] Among the various PPy-based hybrids, most research interests focused on the PPy-carbon nanotube (CNT) hybrid electrode for pseudocapacitor applications over the last several years because CNTsp rovide ideal electron-conduction pathways as well as ar esilients keleton and good percolation. [25][26][27] However,t ypically the fabricated PPy/CNTh ybrid electrodes on am etal current collector with bindera re very far from the expectedh igh cycle stabilityt ogether with high specificc apacitance; [17,[28][29][30][31][32] this can be attributed mainly to the utilization of binder in the conventional slurry-based wet chemical electrode fabrication approach to mix with the electroactive materials, with the residual binder resultingi ns luggish ion transport because of high interfacial Ah ierarchical carbon nanotube-polypyrrole (CNT-PPy) coreshell composite was fabricated by growingC NTsd irectly on carbon cloth (CC) as as keleton followed by electropolymerization of PPy with controlled polymerization time.…”

High‐Performance Electrocatalytic Conversion of N2 to NH3 Using Oxygen‐Vacancy‐Rich TiO2 In Situ Grown on Ti3C2Tx MXene

“…[30][31][32] The MXenes have already showed their significant applicability in biosensors, [33] electromagnetic wave absorption, [34] supercapacitors, [35,36] Li-ion batteries, [37,38] electronic devices, [39,40] gas sensors, [41] etc., because of their high conductivity, [42] hydrophilic surface, [43] and flexibility. Their general formula is recorded as M n+1 X n T x , where "M" stands for the transition metal element, "X" is C or N or CN, while T x represents the terminal groups of -OH or -F, etc., and n could be 1, 2, or 3.…”

Phenoxazine‐Based Conjugated Ladder Polymers as Novel Electrode Materials for Supercapacitors

“…The thermal decomposition (5 %w eightl oss) temperatures, T d ,w ere determined by thermogravimetric analysis( TGA;F igure 1a). Owingt ot he tight molecular structures of the ladder polymers, the T d of the LPPsa re both above 350 8Cu nder an itrogen atmosphere, higher than those of the commonc onductingp olymers (PANI % 300 8C; [13] PPy % 250 8C; [14] PEDOT % 250 8C [15] ). Because H-LPP was relativelye asily oxidized due to the electron-donating character of phenoxazine,t he T d value of H-LPP is only 220 8Cunder an air atmosphere,whereas Cl-LPP has ag reater thermals tability with a T d value stilla bove 350 8Ci na ir,o wing to the deactivation of the electron-with-drawingC la toms.…”