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研究了稀土氧化物La2O3作为添加剂对MnO2碳热还原的作用，通过还原实验，发现La2O3对MnO2碳热还原具有催化作用，对还原后试样进行SEM分析，认为其催化作用是通过催化试样中碳的气化反应而实现的.
The effect of rare earth oxide La2O3 as additive on carbothermal reduction of MnO2 was studied. It was found that La2O3 catalyzed the carbothermal reduction of MnO2 through reduction experiments. The SEM analysis of the sample after reduction showed that the catalytic effect was through the catalytic sample Carbon gasification reaction achieved.