The passivating process caused surface oxidation of WP catalysts, but did not change their crystal structure.

WP催化剂钝化时，其表面层能被氧化，但不改变其体相结构。

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The passivating process caused surface oxidation of WP catalysts, but did not change their crystal structure.

WP催化剂钝化时，其表面层能被氧化，但不改变其体相结构。

youdao