Issue 31, 2024

Structure evolution and specific effects for the catalysis of atomically ordered intermetallic compounds

Abstract

Atomically ordered intermetallic compounds (IMCs) have been extensively studied for exploring catalysts with high activity, selectivity, and longevity. Compared to random alloys, IMCs present a more pronounced geometric and electronic effect with desirable catalytic performance. Their well-defined structure makes IMCs ideal model catalysts for studying the catalytic mechanism. This review focuses especially on elemental composition, electron transfer, and structure/phase evolution under high temperature treatment conditions, providing direct evidence for the migration and rearrangement of metal atoms through electron microscopy. We then present the outstanding applications of IMCs in growing single-walled nanotubes, hydrogenation/dehydrogenation reactions, and electrocatalysis from the perspective of electronic, geometric, strain, and bifunctional effects of ordered IMCs. Finally, the current obstacles associated with the use of in situ techniques are proposed, as well as future research possibilities.

Graphical abstract: Structure evolution and specific effects for the catalysis of atomically ordered intermetallic compounds

Article information

Article type
Minireview
Submitted
05 maj 2024
Accepted
26 jun 2024
First published
27 jun 2024

Nanoscale, 2024,16, 14687-14706

Structure evolution and specific effects for the catalysis of atomically ordered intermetallic compounds

L. Wang, Z. Ma, J. Xue, Y. Dong, L. Chen, Y. Gu and H. Shi, Nanoscale, 2024, 16, 14687 DOI: 10.1039/D4NR01939C

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