Journal article

Publication year: 2022

Journal: Frontiers in Chemistry

Volume number: 10

ISSN: 2296-2646

Open access status: Gold

DOI Link: https://doi.org/10.3389/fchem.2022.1000910

Publisher: Frontiers Media

Abstract: 
2D materials are interesting flat nanoplatforms for the implementation of different electrochemical processes, due to the high surface area and tunable electronic properties. 2D transition metal dichalcogenides (TMDs) can be produced through convenient top-down liquid-phase exfoliation (LPE) methods and present capacitive behaviour that can be exploited for energy storage applications. However, in their thermodynamically stable 2H crystalline phase, they present poor electrical conductivity, being this phase a purely semiconducting one. Combination with conducting polymers like polyaniline (PANI), into nanohybrids, can provide better properties for the scope. In this work, we report on the preparation of 2D WS2@PANI hybrid materials in which we exploit the LPE TMD nanoflakes as scaffolds, onto which induce the in-situ aniline polymerization and thus achieve porous architectures, with the help of surfactants and sodium chloride acting as templating agents. We characterize these species for their capacitive behaviour in neutral pH, achieving maximum specific capacitance of 160 F/g at a current density of 1 A/g, demonstrating the attractiveness of similar nanohybrids for future use in low-cost, easy-to-make supercapacitor devices.

Harvard Citation style: Crisci, M., Boll, F., Merola, L., Pflug, J., Liu, Z., Gallego, J., et al. (2022) Nanostructured 2D WS₂@PANI nanohybrids for electrochemical energy storage, Frontiers in Chemistry, 10, Article 1000910. https://doi.org/10.3389/fchem.2022.1000910

APA Citation style: Crisci, M., Boll, F., Merola, L., Pflug, J., Liu, Z., Gallego, J., Lamberti, F., & Gatti, T. (2022). Nanostructured 2D WS₂@PANI nanohybrids for electrochemical energy storage. Frontiers in Chemistry. 10, Article 1000910. https://doi.org/10.3389/fchem.2022.1000910