2D Vanadium Carbide (MXene) for Electrochemical Synthesis of Ammonia Under Ambient Conditions

Two-dimensional (2D) materials are used in energy storage and conversion due to their unique electronic structure and large specific area. In this work, 2D vanadium carbide (V 2 CT x MXene) is fabricated and studied as an efficient and earth-abundant electrocatalyst for electrocatalytic N 2 reductio...

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Bibliographic Details
Published in:Catalysis letters 2021-12, Vol.151 (12), p.3516-3522
Main Authors: Xia, Jiaojiao, Guo, Haoran, Yu, Guangsen, Chen, Qiru, Liu, Yulin, Liu, Qian, Luo, Yonglan, Li, Tingshuai, Traversa, Enrico
Format: Article
Language:English
Subjects:
Ammonia
Carbides
Carbon
Catalysis
Chemical reduction
Chemical synthesis
Chemistry
Chemistry and Materials Science
Efficiency
Electrocatalysts
Electronic structure
Energy
Energy storage
Experiments
Industrial Chemistry/Chemical Engineering
MXenes
Organometallic Chemistry
Physical Chemistry
Science
Spectrum analysis
Two dimensional materials
Vanadium
Vanadium carbide
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Summary:Two-dimensional (2D) materials are used in energy storage and conversion due to their unique electronic structure and large specific area. In this work, 2D vanadium carbide (V 2 CT x MXene) is fabricated and studied as an efficient and earth-abundant electrocatalyst for electrocatalytic N 2 reduction reaction (NRR). When tested in 0.1 M Na 2 SO 4 , such electrocatalyst achieves a large NH 3 yield rate of 12.6 μg h –1  mg –1 cat. and a Faradaic efficiency of 4% at –0.7 V vs. reversible hydrogen electrode. Theoretical calculations show a low reaction barrier of 0.88 eV in the distal route for this catalyst. Graphic Abstract
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-021-03589-6