Temperature-Limited Synthesis of Copper Manganites along the Borderline of the Amorphous/Crystalline State and Their Catalytic Activity in CO Oxidation.

ABSTRACT: Copper manganese oxides (CMO) with CuMn₂O₄ composition are well-known catalysts, which are widely used for the oxidative removal of dangerous chemicals, e.g., enhancing the CO to CO₂ conversion. Their catalytic activity is the highest, close to those of the pre-crystalline and amorphous states. Here we show an easy way to prepare a stable CMO material at the borderline of the amorphous and crystalline state (BAC-CMO) at low temperatures (<100 °C) followed annealing at 300 °C and point out its excellent catalytic activity in CO oxidation reactions. We demonstrate that the temperature-controlled decomposition of [Cu(NH₃)₄](MnO₄)₂ in CHCl₃ and CCl₄ at 61 and 77 °C, respectively, gives rise to th

SUBMITTER: Solt HE 

PROVIDER: S-EPMC7818585 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature