Abstract We present a new facile and rapid microwave-assisted method to synthesize four different copper nanocompounds on the surface of graphene oxide (GO). By starting from a mixture of copper nitrate and GO, copper hydroxy nitrate double salt (DS) (Cu2(OH)3(NO3)), copper (II) and copper (I) oxides and metallic copper (Cu0) were synthesized and supported simultaneously. The catalytic performance of the four copper/GO nanohybrids as well as some unsupported particles in some common organic reactions has been checked. The studied materials present a high versatility in C–C, C–N, and C–S couplings as well as in catalytic selective oxidation reactions. The performance of DS/GO as an heterogeneous catalyst is presented for the first time and shows the highest activity among all the copper/GO nanohybrid studied systems. The results open up the possibility of a more thorough study of the catalytic performance of the supported copper double salt in other different catalytic and consecutive processes of organic synthesis.

中文翻译：

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用铜复盐、氧化物和金属铜作为氧化和偶联反应的催化剂，轻松快速地装饰氧化石墨烯

摘要 我们提出了一种新的简便快速的微波辅助方法，用于在氧化石墨烯 (GO) 表面合成四种不同的铜纳米化合物。以硝酸铜和GO的混合物为原料，合成并负载了羟基硝酸铜复盐（DS）（Cu2（OH）3（NO3））、铜（II）和铜（I）氧化物以及金属铜（Cu0）同时地。已经检查了四种铜/GO 纳米杂化物以及一些未负载颗粒在一些常见有机反应中的催化性能。所研究的材料在 C-C、C-N 和 C-S 偶联以及催化选择性氧化反应中具有很高的通用性。DS/GO 作为非均相催化剂的性能首次被展示，并且在所有铜/GO 纳米杂化研究系统中表现出最高的活性。