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Preparation of Amines: Reduction of Oximes and Nitro Compounds

Preparation of Amines: Reduction of Oximes and Nitro Compounds

Oximes can be reduced to primary amines using catalytic hydrogenation, hydride reduction, or sodium metal reduction. The reduction of aliphatic and aromatic nitro compounds to primary amines takes place by either catalytic hydrogenation or by using active metals like Fe, Zn, and Sn in the presence of an acid.
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...

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Updated: Jun 28, 2025

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

通过梯度兴奋剂构建定向静电电位差,以实现高效的氧降解反应.

Zhijie Qi¹, Zhenjie Lu¹, Xiangjie Guo¹

¹Key Laboratory for Soft Chemistry and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.

Small (Weinheim an der Bergstrasse, Germany)

|April 9, 2024

概括

此摘要是机器生成的。

渐变兴奋剂增强了催化剂,以改善氧降解反应. 这一策略优化了电子结构和电荷分布,提高了气电池的性能.

关键词:

同基材料是共基材料.在Zn空气电池.静电电位差的不同.渐变化剂的化剂.氧减少反应反应的氧减少反应.

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Published on: May 15, 2015

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

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Published on: April 10, 2018

相关实验视频

Last Updated: Jun 28, 2025

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

兴奋剂是增强碳封装过渡金属催化剂 (TM@C) 氧降解反应 (ORR) 活性的关键.
以前的随机兴奋剂限制了对催化剂电子结构的控制,这是由于无序的静电电位.

研究的目的:

开发一个梯度兴奋剂策略,以改善ORR活动.
为了制造缺乏的石墨烯和富含的碳纳米管,封装了纳米粒子 (Co@CNTs@NG).

主要方法:

使用梯度兴奋剂方法制造Co@CNTs@NG催化剂.
催化剂电子结构和静电电位分布的表征.
评估ORR性能和Zn-空气电池中的应用.

主要成果:

梯度兴奋剂在碳层中产生了对静电潜力的受控增加.
这促进了定向电子传输,优化了电荷分布,并增强了ORR活动 (E_onset = 0.96 V,E_1/2 = 0.86 V).
Co@CNTs@NG在Zn-空气电池中表现出色,峰值功率密度为132.65 mA cm-2和OCV为1.51 V.

结论:

拟议的梯度兴奋剂策略有效调节材料的电子结构和工作功能.
这种方法显著提高了ORR性能,并显示了像Zn-air电池这样的储能应用的前景.