A simple oxalate route was applied to synthesize Mn–Co binary
oxalate precursors in an alcoholic solution which were further calcined
in air to obtain the porous Mn–Co oxide nanorods. Typically, two
alcoholic solutions of mixed Mn2+–Co2+ (10 mmol/10 mmol) and
20% excess of oxalic acid (24 mmol) were combined at ambient condition
under strong stirring. Then, the mixture was stirred for another
0.5 h, washed and dried at 80 °C overnight, followed by calcination in
air at 450 °C for 3 h with the heating rate of 2 °C min−1. The asobtained
catalysts were denoted as b. In addition, the single oxides
with Mn and Co were prepared by the same process which was labeled
as a (MnOx) and c (Co3O4), respectively.
 
A simple oxalate route was applied to synthesize Mn–Co binary
oxalate precursors in an alcoholic solution which were further calcined
in air to obtain the porous Mn–Co oxide nanorods. Typically, two
alcoholic solutions of mixed Mn2+–Co2+ (10 mmol/10 mmol) and
20% excess of oxalic acid (24 mmol) were combined at ambient condition
under strong stirring. Then, the mixture was stirred for another
0.5 h, washed and dried at 80 °C overnight, followed by calcination in
air at 450 °C for 3 h with the heating rate of 2 °C min−1. The asobtained
catalysts were denoted as b. In addition, the single oxides
with Mn and Co were prepared by the same process which was labeled
as a (MnOx) and c (Co3O4), respectively.
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