About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
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Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
Presentation Title |
Synthesis of the Titanium Carbonitride MXenes and their Applications in Energy Storage |
Author(s) |
Anika Tabassum, Kun Liang , Ahmad Majed , Kaitlyn E Prenger, Michael Naguib |
On-Site Speaker (Planned) |
Anika Tabassum |
Abstract Scope |
MXenes are a large family of two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides, with a composition of Mn+ 1 XnTx, where M is an early transition metal, X is C and/or N, n =1–4, and Tx denotes the surface terminations. They are electrically conductive and promising materials for electrochemical energy storage and conversion. Among the +45 synthesized MXenes, very few carbonitrides have been reported, despite the distinct properties of the first reported carbonitride (Ti3CNTx) compared to its carbide counterpart. This is in part due to the difficulty of synthesizing carbonitride. Herein, we report on the synthesis and applications of a new titanium carbonitride MXene (Ti2C0.5N0.5Tx) which exhibited the highest specific capacity among all reported MXene electrodes for sodium-ion batteries. In addition, we will discuss the performance of Ti3CNTx as electrocatalyst for hydrogen evolution reaction with an onset potential of 56 mV which is significantly lower than that of Ti3C2Tx. |