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Development of Binder-Free Three-Dimensional Honeycomb-like Porous Ternary Layered Double Hydroxide-Embedded MXene Sheets for Bi-Functional Overall Water Splitting Reactions.

Authors :
Hussain, Sajjad
Vikraman, Dhanasekaran
Nazir, Ghazanfar
Mehran, Muhammad Taqi
Shahzad, Faisal
Batoo, Khalid Mujasam
Kim, Hyun-Seok
Jung, Jongwan
Source :
Nanomaterials (2079-4991); Aug2022, Vol. 12 Issue 16, p2886-2886, 18p
Publication Year :
2022

Abstract

In this study, a honeycomb-like porous-structured nickel–iron–cobalt layered double hydroxide/Ti<subscript>3</subscript>C<subscript>2</subscript>T<subscript>x</subscript> (NiFeCo–LDH@MXene) composite was successfully fabricated on a three-dimensional nickel foam using a simple hydrothermal approach. Owing to their distinguishable characteristics, the fabricated honeycomb porous-structured NiFeCo–LDH@MXene composites exhibited outstanding bifunctional electrocatalytic activity for pair hydrogen and oxygen evolution reactions in alkaline medium. The developed NiFeCo–LDH@MXene electrocatalyst required low overpotentials of 130 and 34 mV to attain a current density of 10 mA cm<superscript>−2</superscript> for OER and HER, respectively. Furthermore, an assembled NiFeCo–LDH@MXene‖NiFeCo–LDH@MXene device exhibited a cell voltage of 1.41 V for overall water splitting with a robust firmness for over 24 h to reach 10 mA cm<superscript>−2</superscript> current density, signifying outstanding performance for water splitting reactions. These results demonstrated the promising potential of the designed 3D porous NiFeCo–LDH@MXene sheets as outstanding candidates to replace future green energy conversion devices. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20794991
Volume :
12
Issue :
16
Database :
Complementary Index
Journal :
Nanomaterials (2079-4991)
Publication Type :
Academic Journal
Accession number :
158912691
Full Text :
https://doi.org/10.3390/nano12162886