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Updated: Jun 23, 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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聚多巴胺功能化HNIW晶体的制备和在固体推进剂中的应用

Fengdan Zhu1, Chang Liu1, Desheng Yang1

  • 1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.

Polymers
|June 19, 2024
PubMed
概括

当使用氧加速方法涂上多多巴胺 (PDA) 时,HNIW (hexanitrohexaazaisowurtzitane) 推进剂更安全,性能更好. 这种新型涂层降低了相位转换和冲击灵敏度,增强了HNIW.

关键词:
霍尼·威尼斯 (HNIWW) 是一个功能化的水晶.聚多巴胺胺是一种多多巴胺胺.推进剂 推进剂是一种推进剂.

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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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Nitriles can be reduced to primary amines using reducing agents like lithium aluminum hydride or catalytic hydrogenation. The reduction introduces an amino group with an extra carbon in the skeleton. Nitriles are formed from the reaction between alkyl halides and sodium cyanide through the SN2 mechanism. Primary alkyl halides are the preferred substrates to prepare nitriles.
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Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
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