Abstract In this study, a novel nano catalyst consisted of Co oxide particles incorporated in N-doped porous carbon, named Co3O4@N-C-600, was synthesized in the one-step pyrolysis of polyaniline-graphitic carbon nitride composite grafted cobalt acetate at 600 °C. The resulting Co3O4@N-C-600 catalyst was characterized using different identification methods. In addition, specific surface area and the size of the porous carbon cavities were measured using Brunauer-Emmett-Teller (BET) analyzer. The catalytic performance of this novel nano-catalyst was examined for reduction of aromatic and aliphatic nitro-compounds using water as green solvent at 75 °C. Also the as prepared carbon catalyst resulted corresponding amine compounds in high yields and short reaction times. After the end of the reaction, the nano catalyst was easily separated using centrifuge and the recycle studies showed that it reused in five continuous runs in the model reaction without appreciable loss of its catalytic activity.

中文翻译：

---

PANI-g-C3N4 接枝在乙酸钴上作为合成 N 掺杂碳的有效前体 含钴复合材料：一种用于还原硝基化合物的多功能催化剂

摘要 本研究通过聚苯胺-石墨氮化碳复合物接枝醋酸钴在 600° 的一步热解中合成了一种新型纳米催化剂，由掺入 N 掺杂多孔碳中的 Co 氧化物颗粒组成，命名为 Co3O4@NC-600。 C。使用不同的鉴定方法表征所得的 Co3O4@NC-600 催化剂。此外，使用Brunauer-Emmett-Teller（BET）分析仪测量比表面积和多孔碳腔的尺寸。研究了这种新型纳米催化剂在 75°C 下用水作为绿色溶剂还原芳香族和脂肪族硝基化合物的催化性能。此外，所制备的碳催化剂以高产率和短反应时间产生相应的胺化合物。反应结束后，