التفاصيل البيبلوغرافية
| العنوان: |
Direct cleavage of C=O double bond in CO2 by the subnano MoOx surface on Mo2N. |
| المؤلفون: |
Liu, Hao-Xin, Wang, Wei-Wei, Fu, Xin-Pu, Liu, Jin-Cheng, Jia, Chun-Jiang |
| المصدر: |
Nature Communications; 10/23/2024, Vol. 15 Issue 1, p1-12, 12p |
| مصطلحات موضوعية: |
DOUBLE bonds, SCISSORS & shears, CATALYST synthesis, HYDROGENATION, HETEROSTRUCTURES |
| مستخلص: |
Compared to H2-assisted activation mode, the direct dissociation of CO2 into carbonyl (*CO) with a simplified reaction route is advantageous for CO2-related synthetic processes and catalyst upgrading, while the stable C = O double bond makes it very challenging. Herein, we construct a subnano MoO3 layer on the surface of Mo2N, which provides a dynamically changing surface of MoO3↔MoOx (x < 3) for catalyzing CO2 hydrogenation. Rich oxygen vacancies on the subnano MoOx surface with a high electron donating capacity served as a scissor to directly shear the C = O double bond of CO2 to form CO at a high rate. The O atoms leached in CO2 dissociation are removed timely by H2 to regenerate active oxygen vacancies. Owing to the greatly enhanced dissociative activation of CO2, this MoOx/Mo2N catalyst without any supported active metals shows excellent performance for catalyzing CO2 hydrogenation to CO. The construction of highly disordered defective surface on heterostructures paves a new pathway for molecule activation. The direct dissociation of CO2 into carbonyl (*CO) via a simplified reaction pathway benefits CO2-related synthesis and catalyst improvement, though the stability of the C = O double bond poses a significant challenge. Here, the authors design a subnano MoO3 layer on the surface of Mo2N, offering a dynamically adaptive surface for catalyzing CO2 hydrogenation. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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