“…Specifically, the synthetic route can determine not only size, shape, and morphology but also the achievable active surface area available to the perovskite catalysts [ 12 , 13 , 20 , 21 ]. A number of fabrication methods have been proposed over the years, to ensure chemical purity and structural integrity, including but not limited to hydrothermal and solvothermal syntheses [ 20 , 21 ], solid state reactions [ 22 , 23 ], sonochemical protocols [ 24 ], and arc-melting methods [ 25 ]. However, some of these procedures, especially those related to solid state reactions, sonochemistry, and arc-melting, tend to be limited by reproducibility, yield little if any morphological control, and/or are more prone to cost and technical limitations.…”