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Updated: Sep 9, 2025

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

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精密結合されたFe─Cu二原子位は,中空のC3N4球で,効率的なC─N結合と選択的光触媒尿素合成を行う

Muhammad Irfan Ahmad1, Xie Quan1, Haokun Bai1

  • 1Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.

Angewandte Chemie (International ed. in English)
|August 30, 2025
PubMed
まとめ

研究者は,CO2とN2から効率的な光触媒性尿素合成のためのFe-Cu二原子位を持つ空洞のグラフィート炭酸化物球を開発した. この方法は ハーバー・ボッシュプロセスに持続可能な代替手段となり,高い収穫量と選択性を実現します.

キーワード:
CO2 と N2 の共吸収C─N カップリング反応光触媒選択的活性サイト尿素

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Synthesis and Characterization of Functionalized Metal-organic Frameworks11:27

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Preparation of Nitriles01:12

Preparation of Nitriles

One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...
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Catalysis

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Coordination Number and Geometry

For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
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Structure of Amines

The hybridized nitrogen atom in amines possesses a lone pair of electrons and is bound to three substituents with a bond angle of around 108°, which is less than the tetrahedral angle of 109.5°. However, the C–N–H bond angle is slightly larger at 112°, with a carbon–nitrogen bond length of 147 pm. This carbon–nitrogen bond length of of amines is longer than the carbon–oxygen bond of alcohols (143 pm) but shorter than alkanes’...
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