|About this Abstract
||Materials Science & Technology 2019
||Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
||Two-dimensional Titanium Carbonitride MXene as Electrocatalyst for Hydrogen Evolution Reaction
||Kun Liang, Anika Tabassum, Michael Naguib
|On-Site Speaker (Planned)
As a carbon-free clean energy, hydrogen is a promising alternative to traditional fossil fuels. Currently, electrochemical/photoelectrochemical hydrogen evolution reaction (HER) from water is presenting attractive prospect to generate hydrogen. Until now, Pt group metals are believed to be the most effective catalysts. However, the high-cost of precious metal catalysts become a huge obstacle to produce hydrogen in large-scales. Therefore, advanced precious-metal-free catalysts are needed for HER. As a new family of 2D transition metal carbides and carbonitrides, MXenes show unique combinations of properties, which are benefit for electrochemical catalysts of HER. In this study, we report a nonprecious metal catalyst based on MXenes for high-efficiency HER. A Ti3CN nanosheet was achieved through a wet chemistry etching treatment and a delaminating process, which presented high-performance for HER in acid electrolyte. The investigation of MXenes opens up a promising paradigm for the conscious design of high-performance nonprecious metal catalyst for hydrogen generation.
||Definite: At-meeting proceedings