High Surface Area of Polyhedral Chromia and Hexagonal Chromium Sulfide by the Thermolysis of Cyclohexylammonium Hexaisothiocyanatochromate(III) Sesquihydrate

A new organic-inorganic hybrid salt of cyclohexylammonium hexaisothiocyanatochromate(III) sesquihydrate, (C6H11NH3)3[Cr(NCS)6] ⋅ 3/2H2O, was synthesized at room-temperature by metathesis and ligand addition for the establishment energy-saving chemical synthesis approach. The formation this confirmed FT-IR, UV-Vis spectrophotometry, elemental microanalysis, single-crystal X-ray diffraction. TGA study showed low-temperature thermal stability salt, where chromium oxide (Cr2O3) formed under air sulfide (Cr2S3) argon, as PXRD their nanocrystalline. morphological studies SEM TEM revealed irregular polyhedron particles Cr2O3 hexagonal packed layers Cr2S3. textural nitrogen physisorption disclosed mesoporous nature high specific surface area (∼132 m2 g−1) Cr2S3 (∼241 g−1). Cyclohexylammonium could act an organic self-template mesopores temperature thermolysis assisted such pores.