Synthesis, characterization, morphological and electrical studies of polypyrrole nanostructures

Jose, Divya; Joseph, Rani; John, Honey

doi:10.1063/1.5093829

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…Hybrids of rGO with PPy were synthesized by the in situ chemical polymerization of pyrrole in the presence of rGO using APS as oxidant and p ‐TSA as an organic acid dopant. [ 23 ] For the preparation of binary hybrids of PPy and rGO, rGO was sonicated in 1M p ‐TSA for 30 min, and to this, 200 μL of pyrrole was added and homogenized. The polymerization reaction was initiated by the dropwise addition of 2M APS solution to the monomer and rGO mixture.…”

Section: Methodsmentioning

confidence: 99%

Enhanced Mechanical Energy Harvesting in Triboelectric Nanogenerator by the Reinforcement of Polypyrrole‐Decorated rGO Sheets in PDMS

et al. 2023

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Energy harvesting triboelectric nanogenerators (TENGs) to scavenge unused mechanical energy have received significant attention in this decade. Herein, the development of reduced graphene oxide (rGO):polypyrrole (PPy) hybrid‐modified polydimethylsiloxane (PDMS) as TENG for various device applications is reported. The bulk of PDMS is altered by different fillers such as rGO, PPy, and the binary hybrids of rGO and PPy with varying weight ratios. Among various PDMS composites, 1 wt% of 1:8 rGO:PPy–PDMS composite exhibits higher TENG responses than other PDMS composite. The superior TENG performances of 1 wt% 1:8 rGO:PPy–PDMS composite are attributed to the formation of intensified negative charges inside the PDMS matrix. This charge intensification in the composite is due to various mechanisms, including the charge trapping ability of rGO:PPy filler, microcapacitor formation by introducing hybrid filler in the system with proper conducting networks, and the electron‐donating nature of PPy conducting polymer. A 3D stacked device proposed using 1 wt% 1:8 rGO:PPy–PDMS composite delivered a short‐circuit current of 16 μA and an open‐circuit potential of 60 V by simple palm pressing. Also, the ability of the stacked device for charging/powering portable devices and light‐emitting diodes is demonstrated.

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Section: Methodsmentioning

confidence: 99%

Enhanced Mechanical Energy Harvesting in Triboelectric Nanogenerator by the Reinforcement of Polypyrrole‐Decorated rGO Sheets in PDMS

et al. 2023

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“…The authors have cited additional references within the Supporting Information. [58][59][60][61][62][63][64][65][66][67][68][69]…”

Section: Supporting Informationmentioning

confidence: 99%

Laser irradiation of photothermal precursors – a novel approach to produce carbon materials for supercapacitors

Tammela,

Iurchenkova,

Wang

et al. 2024

ChemSusChem

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Carbon materials finds extensive utility across various industrial applications today. Nonetheless, the production processes for these materials continue to entail elevated temperatures, inert atmospheres, and toxic chemicals. The prevalent method for large‐scale carbon material production, namely the pyrolysis of waste biomass and polymers, typically unfolds within the temperature range of 500 – 700 °C under nitrogen atmosphere. Unfortunately, this approach suffers from significant energy inefficiency due to substantial heat loss over extended processing durations. In this work, we propose an interesting alternative: the carbonization of photothermal nanocellulose/polypyrrole composite films through CO2 laser irradiation in the presence of air. This innovative technique offers a swift and energy‐efficient means of preparing carbon materials. The unique interaction between nanocellulose and polypyrrole imparts the film with sufficient stability to retain its structural integrity post‐carbonization. This breakthrough opens up new avenues for producing binder‐free electrodes using a rapid and straightforward approach. Furthermore, the irradiated film demonstrates specific and areal capacitances of 159 F g‐1 and 62 mF cm‐2, respectively, when immersed in a 2 M NaOH electrolyte. These values significantly surpass those achieved by current commercial activated carbons. Together, these attributes render CO2‐laser carbonization an environmentally sustainable and ecologically friendly method for carbon material production.

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“…4(b) shows the corresponding FT-IR spectra of the three states of PPy/I3membrane. Herein, the peak at around 3415 cm -1 stands for the typical N-H stretching vibration [45], the peak observed at 1542 cm -1 can be signed to C=C stretch of pyrrole ring and the peaks at 1040 cm -1 and 904 cm -1 are attributed to C-H in-plane and out-plane deformation of the 10 pyrrole unit, respectively [46,47]. Meanwhile, the C-N stretching coupled with N-H plane deformation at 1450 cm -1 , besides, symmetrical angular deformation of CH3 at 1290 cm -1 [27], and C-N stretching of the amino groups at 1175 cm -1 [48] were observed in the three states of PPy/I3membrane, which are corresponding to the characteristic peaks of PPy.…”

Section: Structure Analysismentioning

confidence: 99%

Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions

Luo

Gao

et al. 2021

Separation and Purification Technology

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Synthesis, characterization, morphological and electrical studies of polypyrrole nanostructures

Cited by 4 publications

References 15 publications

Enhanced Mechanical Energy Harvesting in Triboelectric Nanogenerator by the Reinforcement of Polypyrrole‐Decorated rGO Sheets in PDMS

Enhanced Mechanical Energy Harvesting in Triboelectric Nanogenerator by the Reinforcement of Polypyrrole‐Decorated rGO Sheets in PDMS

Laser irradiation of photothermal precursors – a novel approach to produce carbon materials for supercapacitors

Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions

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