Ionothermal Syntheses of Nano- and Microstructured Ternary Copper–Indium–Chalcogenides

Abstract

Ternary compounds of copper indium selenide nano-and microsized materials were prepared through colloidal synthesis using an indium(III) selenide precursor and copper(I) chloride via a microwave-assisted ionothermal route. The indium-(III) selenide precursor used in the reaction was formed in situ from a diphenyl diselenide precursor and chloroindate(III) ionic liquids (ILs), also via a microwave-assisted ionothermal route. The crystal structures of three intermediates, namely, CuCl 2 (OMe) 2 -(H 2 O)){Cu(PhSeO 2 ) 2 } n , [CuCl(Se 2 Ph 2 ) 2 ] n , and [C 8 mim] 3 -{Cu I Cl 2 Cu II OCl 8 } n , were determined after formation through a ionothermal procedure utilizing metal-containing imidazolium ILs and a selenium precursor with conventional heating. Herein, we compare the use of microwave irradiation over conventional heating with different ILs on the stoichiometry of the resulting products. The influence of the reaction temperature, reaction time, order of addition of reagents, and variation of ILs, which were characterized using PXRD, SEM, and EDX, on the final products was investigated.

Coordination Polymers of Indium/Copper Selenolates and the Preparation of Metal Selenides

“…The binary compounds or their molecular precursors can be employed as starting materials for the preparation of ternary compounds of type CuInE 2 . The chalcopyrite type compound CuInSe 2 has been well established as the key semiconducting material for making the next generation PV devices due to their favorable properties such as high absorption coefficient, good radiation and thermal stability, high photovoltaic efficiency and low toxicity ,. Various methods to synthesize such material have been reported, however only a few have been used to generate thin film or nano‐material of CuInSe 2 with desired properties ,.…”

Discrete Supertetrahedral Tn Chalcogenido Clusters Synthesized in Ionic Liquids: Crystal Structures and Photocatalytic Activity

“…[45] Other types of discrete metal chalcogenide clusters have also been documented. [19,49,[64][65][66][67][68][69][70][71][72][73][74][75][76][77][78] All the discrete supertetrahedral Tn chalcogenido clusters synthesized in ILs thus far are summarized in Table 1, and the space group, band gap and synthetic conditions are listed as well. Noticeably, [Bmmim]Cl (Figure 2, left; Bmmim = 1-butyl-2,3-dimethylimidazolium) was widely adopted in the synthetic process.…”

“…The syntheses of discrete supertetrahedral T n chalcogenido clusters, however, were still elusive until we firstly reported on the syntheses of T5 clusters in ILs [45] . Other types of discrete metal chalcogenide clusters have also been documented [19,49,64–78] …”

One-pot synthesis of cellulose/MoS2 composite for efficient visible-light photocatalytic reduction of Cr(VI)

“…It is a powerful tool for the synthesis of the nanostructured materials due to the advantageous properties of rapidity and reduced energy consumption. Much progress on the preparation of nanomaterials by using this rapid method has been published, such as metal oxides (Schütz et al 2017), metal sulfides (Ma et al 2014), metal selenides (Tyrrell et al 2015), metal tellurides (Schaumann et al 2017), etc. A previous study revealed that ionic liquids have obvious effects on both the crystal structure and morphology of the nanomaterials (Lin et al 2017).…”