Related Experiment Video
Updated: Jan 30, 2026

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
Published on: February 12, 2020
Oxygen-Functionalized Ultrathin Ti3 C2 Tx MXene for Enhanced Electrocatalytic Hydrogen Evolution
Yanan Jiang1, Tao Sun1, Xi Xie2
1SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
Abstract:
Two-dimensional (2D) transition-metal carbides (MXenes) are widely adopted as potential electrocatalysts for the hydrogen evolution reaction (HER) owing to their metallic conductivity, rich tunable surface chemistry, and atomic thickness with highly exposed active sites. Previously published theoretical results indicate that MXenes functionalized entirely with oxygen have lower ΔGH* for HER. However, MXenes contain many terminal F groups on the basal plane, which is detrimental to the HER. Herein, the development of an ultrathin Ti3 C2 MXene nanosheet fully functionalized with oxygen is reported for the HER. The obtained oxygen-functionalized Ti3 C2 (Ti3 C2 Ox ) exhibits a much higher HER activity (190 mV at 10 mA cm-2 ) than that of Ti3 C2 Tx (T=F, OH, and O). The improved HER performance is attributed to the highly active O sites on the basal plane of Ti3 C2 Tx MXenes. This study paves way for electrocatalytic applications of MXene materials by tuning their surface functional groups.
More Related Videos
10:15Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
Published on: November 7, 2025
09:18Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
Related Concept Videos
Hydrogen Bonds
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
Hydrogen Bonds
Convergent Evolution
The Evidence for Evolution
Functional Groups
Eukaryotic Evolution
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...