Refractory‐Metal‐Based Chalcogenides for Energy

Abstract

When it is asked, “where can refractory metals be used?,” the possible shortest answer is, “where cannot they be used?” The uses of refractory‐metal‐based compounds in research and industry are too many to be enumerated; nevertheless, some outstanding examples are briefly mentioned here. Essentially, chalcogenide forms of refractory metals are preferred in the fabrication of high‐performance structures. Therefore, expanding the current studies that usually focus on tungsten‐ and molybdenum‐based structures to other materials may open new opportunities. Moreover, research on ternary and quaternary structures can also be a keystone in creating high‐performance products. The rationale of the present review is to give a brief overview of the recent history of refractory‐metal‐based chalcogenides (RMCs). Initially, the framework is confined to the general design and approaches for the synthesis of refractory metal chalcogenides. The assay is continued by extending with characteristic features of materials from crystalline properties to thermoelectric attributes and examining device fabrication processes. Taken together, the device fabrication part where RMCs are mainly used is extensively focused upon. Finally, outlook and future perspectives are given on the design and construction of RMCs to enable future inspiration and innovation.

Investigation of Tungsten‐Based Seleno‐Chevrel Compounds with Different Compositions for Efficient Water Splitting

“…[10] Research is ongoing to identify a photocatalyst that has visible light absorption, high economic efficiency, high stability, a suitable band gap, and convenient redox potential levels. [11] For this purpose, several materials, including ternary oxides, metal chalcogenides, carbon-based materials, etc., [12,13] have been considered as alternatives; nevertheless, none possess all the necessary requirements for an efficient photocatalyst. Among these materials, CuInS 2 is considered for the photocatalytic water splitting with its superior properties as suitable band gap, environment friendly elements, etc.…”