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Updated: Feb 25, 2026

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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Ni/ZIF-8ナノ触媒に対するアンモニア・ボランの水解:高効率,メカニズム,制御された水素放出

Changlong Wang1,2, Jimena Tuninetti3, Zhao Wang4

  • 1Laboratoire de Chimie de Coordination , UPR CNRS 8241, Toulouse 31077 Cedex, France.

Journal of the American Chemical Society
|August 2, 2017
PubMed
まとめ

ゼオリティクイミダゾラートフレームワーク型ニッケルナノ粒子は,多くの非貴金属および貴金属ナノ粒子のシステムを上回る,アンモニア-ボラン水解のための効率的な,リガンドフリーな触媒を提供する. この突破により 制御された水素の生産が可能になりました

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Catalysis02:50

Catalysis

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Hydroboration-Oxidation of Alkenes

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Nitriles are reduced to amines in the presence of strong reducing agents like lithium aluminum hydride through a typical nucleophilic acyl substitution. The reaction requires two equivalents of the reducing agent. The reducing agent acts as a source of hydride ions.
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
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1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism

Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
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Introduction
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Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
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