Synthesis of stable titanium carbide MXene nanocomposites using crosslinker nanoparticles for flexible supercapacitors: A novel and cost-effective approach. Issue 12 (15th June 2023)

• Record Type: Journal Article
• Authors: Falak, Ushnah; Rasheed, Aamir; Rasheed, Tabinda; Dastgeer, Ghulam; Lee, Seung Goo; Ajmal, Sara
• Is Part Of: Ceramics international. Volume 49:Issue 12(2023)
• Page Start: 21026
• Page End: 21035
• Publication Date: 2023-06-15
• Subjects: Ag@ RGO -- MXene nanocomposites -- LBL assembly -- Energy storage -- Flexible supercapacitors; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2023.03.238
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: This study presents a novel and cost-effective silver nanoparticles (AgNPs)-based cross-linking approach to synthesize AgNPs-decorated reduced graphene oxide (Ag@RGO) and its stable nanocomposites (NCs) with titanium carbide MXene for flexible supercapacitors (SCs). MXene/Ag@RGO NCs showed enhanced electrochemical performance compared to individual MXene. The electrostatic interactions between positively charged AgNPs@RGO and negatively charged MXene stabilized the assembly of 2D layers. Moreover, the presence of AgNPs played a crucial role in maintaining an optimal distance between the layers of two-dimensional (2D) MXene. This distance helped to prevent restacking of the MXene layers and ensured the interlayer ionic flow unimpeded, promoting efficient charge transport. In conclusion, the stable self-assembly of these 2D-2D structures holds significant potential for high-performance supercapacitor (SC) electrodes. The prepared NCs demonstrated specific capacitance (Csp) of ∼630 F/g which is 9.6 and 3.5 times better than pure MXene and MXene/RGO, respectively, along with only a 0.12% decrease in Csp after 1000 C V cycles (1.97% decrease after 5000 GCD cycles). Overall, this study proposes an interesting idea to explore stabilized nanocomposite structures for next-generation flexible SCs. Graphical abstract: Image 1