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Tunable Structured MXenes With Modulated Atomic Environments: A Powerful New Platform for Electrocatalytic Energy
Sutong Xiao1, Yijuan Zheng1,2, Xizheng Wu1,2
1College of Polymer Science and Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China.
Small (Weinheim an Der Bergstrasse, Germany)
|August 21, 2022
Summary
Structured 2D transition-metal carbides, nitrides, and carbonitrides (MXenes) show promise for electrocatalytic energy conversion. This review details recent advances in engineering MXenes for enhanced performance in these systems.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Two-dimensional (2D) transition-metal carbides, nitrides, and carbonitrides (MXenes) possess advantageous properties like tunable bandgaps and high conductivity.
- MXenes have emerged as efficient materials for electrochemical energy conversion systems over the last decade.
Purpose of the Study:
- To comprehensively summarize recent advances in engineering tunable structured MXenes for electrocatalytic energy conversion.
- To highlight breakthroughs in MXene nanoarchitecture design and their structure-performance correlations.
Main Methods:
- Focus on state-of-the-art synthetic and processing methods for MXenes.
- Discuss principles of electronic property modulation and nanoarchitecture engineering.
- Review strategies for designing catalytic centers and atomic environments.
Main Results:
- Recent breakthroughs in termination engineering, heteroatom doping, defect engineering, heterojunctions, and alloying of MXenes are discussed.
- Representative electrocatalytic applications of structured MXenes in energy conversion are summarized.
- Structure-performance correlations for MXene-based electrocatalysts are analyzed.
Conclusions:
- Engineered MXenes offer a powerful platform for advanced electrocatalytic energy conversion.
- This review provides guidance for developing novel MXene-based electrocatalysts.
- Further research can promote the practical application of tunable structured MXenes.
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