Polyaniline nanosheets templated from aniline‒acid precipitates and their electrochemical performance for flexible supercapacitor

Wu, Xuena; Zhou, Kai; Tian, Yan; Li, Zhan; Ban, Qing; Liu, Libin; Gai, Ligang

doi:10.1016/j.electacta.2023.143263

Cited by 2 publications

(1 citation statement)

References 49 publications

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“…It showed strong electrochemical performance in Na 2 SO 4 , suggesting potential for high-energy supercapacitors [19]. The incorporation of MnO 2 and PANI nanoparticles into graphene layered structures for formulating conductive ink offers significant benefits due to its conjugated aromatic chains, PANI can strongly anchor onto the graphene surface via π-π interactions without disrupting the electronic structure of graphene [20,21]. The significant π-π interactions between PANI and graphene are believed to produce charge-transfer effects, thereby improving the conductivity of the nanocomposite material [22,23].…”

Section: Introductionmentioning

confidence: 99%

Graphene-enhanced manganese dioxide functional ink infused with polyaniline for high-performance screen-printed micro supercapacitor

Shetty,

Saquib,

Selvakumar

et al. 2024

Mater. Res. Express

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In the world of miniature advancements in technology, a current champion has emerged: the micro supercapacitors. In order to fabricate these micro-supercapacitors, we have developed a promising and user-friendly approach for printing a conductive functional ink containing a ternary composite of manganese dioxide (MnO2) nanoparticles, Graphene, and polyaniline (PANI) as a dopant. Screen-printing technique was employed to fabricate micro-supercapacitors using the nanocomposite conductive ink. The performance of the energy storage device was examined using flexible symmetric and asymmetric, with an aqueous 1M KOH electrolyte. According to this strategy, the characterisation and electrochemical study results revealed that doping PANI into both symmetric and asymmetric devices significantly increased the material's capacitive performance of areal capacitance 167 mFcm-² for MnO2/Graphene/PANI-5 composite (MGP-5) and 292.5 mFcm-² for asymmetric supercapacitor (ASSC) at 5 mVs-1. Furthermore, the asymmetric supercapacitor displayed outstanding cyclic stability, retaining 93.6% of its capacitance after 10000 cycles. This underscores the possibility of incorporating polyaniline (PANI) into MnO2 and graphene matrices as efficient blueprints for the development of superior electrode materials. The improvement represents a significant step forward, opening avenues for the future development of novel devices and their integration into top-of-the-line flexible energy storage systems.

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Section: Introductionmentioning

confidence: 99%

Graphene-enhanced manganese dioxide functional ink infused with polyaniline for high-performance screen-printed micro supercapacitor

Shetty,

Saquib,

Selvakumar

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

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Polyaniline‐based synergetic electrocatalysts for CO₂ reduction reaction: A review

Yesudas K,

Buvaneswari,

Senthil Kumar

2024

Electrochemical Science Adv

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The increasing impact of industrialization on climate change, primarily due to the emission of greenhouse gases such as carbon dioxide (CO2), underscores the urgent need for effective strategies for CO2 fixation and utilization. Electrochemical CO2 reduction holds promise in this regard, owing to its scalability, energy efficiency, selectivity, and operability under ambient conditions. However, the activation of CO2 requires suitable electrocatalysts to lower energy barriers. Various electrocatalysts, including metal‐based systems and conducting polymers like polyaniline (PANi), have been identified to effectively lower this barrier and enhance CO2 reduction efficiency via synergistic mechanisms. PANi is particularly notable for its versatile interaction with CO2, cost‐effectiveness, stability, and tunable properties, making it an excellent catalyst option for CO2 reduction reactions (CO2RR). Recent advancements in research focus on enhancing PANi conductivity and facilitating electron transfer through metal and metal oxide doping. Leveraging PANi's π–π electron stabilization ensures high conductivity and stability, rendering it suitable for real‐time applications. Strategic dopant selection and optimization of Lewis acid‐base interactions are crucial for selective CO2‐to‐hydrocarbon conversion. Tailored electrode modifications, especially metal/metal oxide‐loaded PANi electrodes, outperform conventional approaches, underscoring the importance of catalyst design in advancing CO2 electroreduction technologies. This review provides a comprehensive analysis of the systematic methodology involved in preparing PANi‐modified electrodes and explores the enhancements achieved through the incorporation of metals and metal oxides onto PANi‐modified electrodes. It highlights the superior efficiency and selectivity of CO2RR facilitated by these modified electrodes through profound synergistic approach compared to conventional metal electrodes such as platinum.

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Polyaniline nanosheets templated from aniline‒acid precipitates and their electrochemical performance for flexible supercapacitor

Cited by 2 publications

References 49 publications

Graphene-enhanced manganese dioxide functional ink infused with polyaniline for high-performance screen-printed micro supercapacitor

Graphene-enhanced manganese dioxide functional ink infused with polyaniline for high-performance screen-printed micro supercapacitor

Polyaniline‐based synergetic electrocatalysts for CO₂ reduction reaction: A review

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Polyaniline nanosheets templated from aniline‒acid precipitates and their electrochemical performance for flexible supercapacitor

Cited by 2 publications

References 49 publications

Graphene-enhanced manganese dioxide functional ink infused with polyaniline for high-performance screen-printed micro supercapacitor

Graphene-enhanced manganese dioxide functional ink infused with polyaniline for high-performance screen-printed micro supercapacitor

Polyaniline‐based synergetic electrocatalysts for CO2 reduction reaction: A review

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Polyaniline‐based synergetic electrocatalysts for CO₂ reduction reaction: A review