Abstract

Functionalized aromatic amines are an important basis for the production of pharmaceuticals, agrochemicals, polymers, dyes, and other industrially significant products. The catalytic reduction of nitroarenes to aromatic amines is one of the methods most commonly used for the production of amines both in industry and in the laboratory. In this work, we synthesized Ag/CeO₂ catalysts with different silver contents (1, 3, 5, and 10 wt %) and studied the physicochemical and catalytic properties of these systems. The effect of the amount of an active component (Ag) on the activity of the catalyst in the reduction of 4-nitrophenol with sodium borohydride in water at room temperature and atmospheric pressure was shown. As the silver content was increased to 10 wt %, the rate of reaction increased, but the absolute activity (TOF) decreased.

中文翻译：

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Ag含量对常温常压还原4-硝基苯酚中Ag / CeO 2催化剂活性的影响

摘要

官能化的芳香胺是生产药品，农用化学品，聚合物，染料和其他工业上重要产品的重要基础。将硝基芳烃催化还原成芳族胺是工业上和实验室中最常用于生产胺的方法之一。在这项工作中，我们合成了Ag / CeO ₂银含量（1、3、5和10 wt％）的催化剂，并研究了这些系统的物理化学和催化性能。显示了在室温和大气压下在水中用硼氢化钠还原4-硝基苯酚中活性成分（Ag）的量对催化剂活性的影响。随着银含量增加到10wt％，反应速率增加，但是绝对活性（TOF）降低。