2023-Sustainable Industrial Processing Summit
Echegoyen Intl. Symp / Nanomaterials for Future Energy Demands

Editors:F. Kongoli, M.P. Brzezinska, M.A. Alario-Franco, F. Marquis, M.S. Noufal, E.Palomares, J.M. Poblet, D.M. Guldi, A.A. Popov, A.R. Puente Santiago, B. Raveau, D. G. Rodriguez, S. Stevenson, T. Torres, A. Tressaud, M. de Campos
Publisher:Flogen Star OUTREACH
Publication Year:2023
Pages:166 pages
ISBN:978-1-989820-78-0 (CD)
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2023_Volume1
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    BAND ENGINEERING IN Ti2N/Ti3C2Tx-MXene INTERFACE LEADS TO ENHANCE THE PERFORMANCE OF AQUEOUS NH4+-ion HYBRID SUPERCAPACITORS

    Xiaofeng Zhang1; Muhammad Sufyan Javed2; Weihua Han1;
    1LANZHOU UNIVERSITY, LanZhou, China; 2LANZHOU UNIVERSITY, Lanzhou, China;
    Type of Paper: Regular
    Id Paper: 430
    Topic: 16

    Abstract:

    The aqueous hybrid supercapacitor (AHSC) based on ammonium ion (NH4+) is an interesting energy storage device with excellent properties. However, the scarcity of appropriate and effective cathode materials limited its practicality. Two-dimensional (2D) transition metal nitrides, carbides, and/or carbonitrides (MXenes) show potential as cathode materials, but their low capacitance also limits their applicability. Here, we synthesized N-functionalized 2D MXene (Ti3C2Tx) with Ti2N interface engineering (Ti2N/Ti3C2Tx), which displayed not only superior capacitance and rate capability but also a cycling stability then pristine Ti3C2Tx. Ex-situ XRD and XPS were used to study the fast transport of electrons/ions and its charge storage mechanism at the interface of Ti2N/Ti3C2Tx. Furthermore, density functional theory (DFT) calculations were employed to validate the superior conductivity at the interface of the Ti2N/Ti3C2Tx(Tx = OH) electrode. Moreover, AHSC was assembled with the Ti2N/Ti3C2Tx as cathode and activated carbon as anode possesses outstanding energy storage performance. This study not only elucidates the charge storage process of Ti2N/Ti3C2Tx but also provide new insights for designing novel cathode materials for energy storage devices. 

     

    Keywords:

    Batteries; Energy; Hydrogels; Nanomaterials; Synthesis

    Cite this article as:

    Zhang X, Javed M, Han W. (2023). BAND ENGINEERING IN Ti2N/Ti3C2Tx-MXene INTERFACE LEADS TO ENHANCE THE PERFORMANCE OF AQUEOUS NH4+-ion HYBRID SUPERCAPACITORS. In F. Kongoli, M.P. Brzezinska, M.A. Alario-Franco, F. Marquis, M.S. Noufal, E.Palomares, J.M. Poblet, D.M. Guldi, A.A. Popov, A.R. Puente Santiago, B. Raveau, D. G. Rodriguez, S. Stevenson, T. Torres, A. Tressaud, M. de Campos (Eds.), Sustainable Industrial Processing Summit Echegoyen Intl. Symp / Nanomaterials for Future Energy Demands (pp. 161-162). Montreal, Canada: FLOGEN Star Outreach