Au/ nb2o5催化氨基n -甲酰化在CO2加氢反应中的高选择性

IF 1.4 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Chemistry Letters Pub Date : 2023-10-05 DOI:10.1246/cl.230365

Mitsuyo Hidaka, Mingyue Lin, Hiroki Yamakawa, Akihiro Nakayama, Toru Murayama, Tetsuya Shimada, Shinsuke Takagi, Tamao Ishida

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引用次数: 0

摘要

与其他具有不同晶体结构的Au/Nb2O5催化剂相比，变形正交氧化铌负载的Au纳米颗粒(Au/Nb2O5- do)在CO2和H2催化n -甲酰化反应中表现出较高的催化活性。Au/Nb2O5-DO在CO2加氢过程中对甲酸甲酯也有较高的选择性。Nb2O5-DO比Au/Nb2O5-T(正晶型)和Au/Nb2O5-A(非晶型)具有更多的酸位，这有利于甲酸酯的活化和胺的吸附。与其他具有不同晶体结构的Au/Nb2O5催化剂相比，变形正交氧化铌负载的Au纳米颗粒(Au/Nb2O5- do)在CO2和H2催化n -甲酰化反应中表现出较高的催化活性。Au/Nb2O5-DO在CO2加氢反应中也表现出较高的选择性。Nb2O5-DO比Au/Nb2O5-T(正晶型)和Au/Nb2O5-A(非晶型)具有更多的酸位，这有利于甲酸酯的活化和胺的吸附。

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Au/Nb₂O₅-Catalyzed N-Formylation of Amines Utilizing High Selectivity to Formate Intermediate in CO₂ Hydrogenation

Deformed orthorhombic niobium oxide-supported Au nanoparticles (Au/Nb2O5-DO) exhibited high catalytic activity for N-formylation of amines using CO2 and H2 compared to other Au/Nb2O5 catalysts having different crystalline structures. Au/Nb2O5-DO also showed high selectivity to methyl formate in CO2 hydrogenation. Nb2O5-DO possessed greater amount of acid sites than Au/Nb2O5-T (orthorhombic) and Au/Nb2O5-A (amorphous), which would be beneficial for the formate activation and amine adsorption. Deformed orthorhombic niobium oxide-supported Au nanoparticles (Au/Nb2O5-DO) exhibited high catalytic activity for N-formylation of amines using CO2 and H2 compared to other Au/Nb2O5 catalysts having different crystalline structures. Au/Nb2O5-DO also showed high selectivity to formate in CO2 hydrogenation. Nb2O5-DO possessed greater amount of acid sites than Au/Nb2O5-T (orthorhombic) and Au/Nb2O5-A (amorphous), which would be beneficial for the formate activation and amine adsorption.

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来源期刊

Chemistry Letters 化学-化学综合

CiteScore

3.00

自引率

6.20%

发文量

260

审稿时长

1.2 months

期刊介绍： Chemistry Letters covers the following topics: -Organic Chemistry- Physical Chemistry- Inorganic Chemistry- Analytical Chemistry- Materials Chemistry- Polymer Chemistry- Supramolecular Chemistry- Organometallic Chemistry- Coordination Chemistry- Biomolecular Chemistry- Natural Products and Medicinal Chemistry- Electrochemistry