Special Issue
  • NiMo LDHs Nanosheets-Coupled V2C MXene-Based Heterocatalyst for Enhanced Overall Water Splitting

  • Deepanshu Malhotra*, Duy Thanh Tran*, Nam Hoon Kim*† , Joong Hee Lee*, **†

  • * Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Korea
    ** Carbon Composite Research Center, Department of Polymer-Nano Science and Technology, Jeonbuk National University, Jeonju 54896, Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The rapid increase in the demand for energy has put huge pressure on fossil fuels. The continuous over-utilization of these existing non-renewable energy sources has been causing severe environmental concerns. In these regards, electrochemical water splitting has gained huge attention for producing green hydrogen, a superior energy source with high gravimetric energy density (120 MJ/kg), as compared with conventional options. Electrochemical water splitting is a viable option for generating green hydrogen. However, the various limitations of state-of the art Pt/C and RuO2- based electrocatalysts has motivated the scientific community to develop novel cathode (hydrogen evolution reaction (HER)) and anode (oxygen evolution reaction (OER)) electrocatalysts. In our present study, we have achieved a new milestone by fabricating the NiMo-based transition metal LDHs coupled V2C MXene support based heterocatalyst. The synergistic impact of NiMo LDHs (corrosion resistance, favorable intrinsic catalytic properties, etc.) and V2C (high electrical conductivity, pseudocapacitive behavior, etc.) has resulted in the HER and OER at smaller overpotential of 135 and 370 mV at the current density of 10 and 30 mA cm-2 in an alkaline (1.0 M KOH) environment.


Keywords: NiMo LDHs, V2C MXene, HER, and OER, Water splitting

This Article

Correspondence to

  • Nam Hoon Kim* , Joong Hee Lee*, **

  • * Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Korea
    ** Carbon Composite Research Center, Department of Polymer-Nano Science and Technology, Jeonbuk National University, Jeonju 54896, Korea

  • E-mail: Prof. Nam Hoon Kim (E-mail: nhk@jbnu.ac.kr) and Pr