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Synthesis of core@shell catalysts guided by Tammann temperature
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Synthesis of core@shell catalysts guided by Tammann temperature
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Journal Article
Synthesis of core@shell catalysts guided by Tammann temperature
2024
Overview
Designing high-performance thermal catalysts with stable catalytic sites is an important challenge. Conventional wisdom holds that strong metal-support interactions can benefit the catalyst performance, but there is a knowledge gap in generalizing this effect across different metals. Here, we have successfully developed a generalizable strong metal-support interaction strategy guided by Tammann temperatures of materials, enabling functional oxide encapsulation of transition metal nanocatalysts. As an illustrative example, Co@BaAl
2
O
4
core@shell is synthesized and tracked in real-time through in-situ microscopy and spectroscopy, revealing an unconventional strong metal-support interaction encapsulation mechanism. Notably, Co@BaAl
2
O
4
exhibits exceptional activity relative to previously reported core@shell catalysts, displaying excellent long-term stability during high-temperature chemical reactions and overcoming the durability and reusability limitations of conventional supported catalysts. This pioneering design and widely applicable approach has been validated to guide the encapsulation of various transition metal nanoparticles for environmental tolerance functionalities, offering great potential to advance energy, catalysis, and environmental fields.
The authors report a synthetic strategy to create core@shell catalysts using strong metal-support interactions and low-Tammann-temperature compounds. The resulting materials are highly stable and may be useful in industrial applications.
