Predominated Thermodynamically Controlled Reactions for Suppressing Cross Nucleations in Formation of Multinary Substituted Tetrahedrite Nanocrystals
Predominated Thermodynamically Controlled Reactions for Suppressing Cross Nucleations in Formation of Multinary Substituted Tetrahedrite Nanocrystals
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DOI：
10.1021/acs.jpclett.8b00680
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发表时间：
2018-04-19
影响因子：
5.7
通讯作者：
Pradhan, Narayan
中科院分区：
文献类型：
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作者：
Bera, Suman;Dutta, Anirban;Pradhan, Narayan
I-II-V-VI族半导体Cu_（12-x）M_xSb_4S_（13）（M = Zn-II、Cd-II、Mn-II和Cu-II）取代的黝铜矿纳米结构仍然是尚未被广泛探索的一类新的多元材料。由于离子的不同，这些纳米结构的形成过程总是存在交叉成核的可能性。最大限度地减少反应时间，在这里，一个主要的热力学控制方法的报告，这是从它们可能的交叉成核的四元成核。因此，防止了可能的交叉成核，并形成了一系列几乎单分散的有趣的取代的黝铜矿纳米结构。还提出了可能的LaMer图的单一和多材料的成核。此外，所有这些新材料的带隙进行了计算，并初步测试这些材料的光电化学水裂解的适用性。
Group I-II-V-VI semiconducting Cu12-xMxSb4S13 (M = Zn-II, Cd-II, Mn-II and Cu-II) substituted tetrahedrite nanostructures remain a new class of multinary materials that have not been widely explored yet. Having different ions, the formation process of these nanostructures always has the possibility of formation of cross nucleations. Minimizing the reaction time, herein, a predominantly thermodynamic control approach is reported, which decouples the quaternary nucleations from their possible cross nucleations. As a consequence, possible cross nucleations were prevented and a series of nearly monodisperse intriguing substituted tetrahedrite nanostructures were formed. The possible LaMer plot for the single- and multimaterial nucleations is also proposed. Further, bandgaps of all of these new materials are calculated, and preliminarily, the applicability of these materials is tested for photoelectrochemical water splitting.