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Colloidal Synthesis of Cu–M–S (M = V, Cr, Mn) Nanocrystals by Tuning the Copper Precursor Reactivity
Chemistry of Materials ( IF 8.6 ) Pub Date : 2020-11-13 , DOI: 10.1021/acs.chemmater.0c03788
Valeria Mantella 1 , Seyedeh Behnaz Varandili 1 , James R. Pankhurst 1 , Raffaella Buonsanti 1
Affiliation  

New ternary and higher order inorganic materials are needed for a large variety of applications, yet their synthesis still represents a chemistry challenge. Herein, we focus on the synthesis of Cu–M–S nanocrystals (where M = V, Cr, Mn) via a wet-chemistry route and investigate their formation mechanisms. We reveal that the interplay between the copper precursor and the thiophilicity of the transition metal M is the key for the synthesis of pure phase Cu–M–S nanocrystals under the same reaction conditions. In particular, we observe that the interdiffusion kinetics of the intermediate species is crucial, and the extent of nucleation of the ternary product can be controlled by the copper precursor reactivity. The insights provided by this work contribute to open up new avenues toward the design of improved synthesis strategies to multinary nanocrystalline compounds.

中文翻译:

通过调整铜前体的反应性胶体合成Cu–M–S(M = V,Cr,Mn)纳米晶体

新型三元及更高阶的无机材料需要广泛的应用,但是它们的合成仍然代表着化学挑战。在这里,我们专注于通过湿化学途径合成Cu–M–S纳米晶体(其中M = V,Cr,Mn),并研究其形成机理。我们发现,在相同的反应条件下,铜前体与过渡金属M的硫亲合性之间的相互作用是合成纯相Cu–MS–S纳米晶体的关键。特别地,我们观察到中间物种的相互扩散动力学至关重要,并且三元产物的成核程度可以通过铜前体反应性来控制。
更新日期:2020-11-25
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