“…As three-dimensional coordination-type materials, hexacyanidometallates have been applied in various fields, including gas storage, 15,16 radioactive wastes pretreatments, [17][18][19][20] drug delivery 21 etc. Recently, given the structural and compositional diversity, relative robustness and fast electron transfer of short cyanide linkers in mixed metal cyanide-based compounds, they have garnered much attention as potential robust and efficient water oxidation catalysts.…”