Journal of Nanomaterials / 2017 / Article / Tab 4

Research Article

Lanthanum-Based Perovskite-Type Oxides La1−xCexBO3 (B = Mn and Co) as Catalysts: Synthesis and Characterization

Table 4

H2 consumed for the first step and second step of reduction on and (x = 0, 0.2, and 0.4) perovskite catalysts.

First step of reductionReduction
temperature (°C)
Second step of reductionReduction
temperature (°C)

LaCoO3Co3+ to Co2+391 (surface) 548 (bulk)Co2+ to Co0648
La0.6Ce0.4CoO3427 (surface) 508 (bulk)616

LaMnO3Mn4+ to Mn3+542Mn3+ to Mn2+798

La0.8Ce0.2MnO3Mn4+ to Mn3+571Mn3+ to Mn2+798

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