Organo lanthanide complex (C 5Me 5)NdCl 2·LiCl has been found to be an efficient catalyst for the hydrogenation of ......

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我们对用纳米镁粉(平均颗粒度≤40nm)在常压下制备MgB2超导样品(以下简称纳米MgB2超导样品)进行了研究．得到了一组与用普通颗粒镁粉......