The catalyst is modified by a proper amount of the rare-earth metal oxide, so the catalyst has good catalytic performance; and the preparation process has simple operation.
该催化剂经适量稀土金属氧化物改性后，具有较好的催化性能，且制备过程操作简便。
The catalyst is modified by a proper amount of the rare-earth metal oxide, so the catalyst has good catalytic performance; and the preparation process has simple operation.
该催化剂经适量稀土金属氧化物改性后，具有较好的催化性能，且制备过程操作简便。
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