The catalytic mechanism of titanium dioxide loading with a chromium oxide (CrO_x/TiO₂) catalyst for the oxidation of 2,2′-hydrazobis-isobutyronitrile to 2,2′-azobis-isobutyronitrile was investigated, which revealed that the surface hydroxyl groups of TiO₂ could promote the formation of the real active center (Cr–O–Ti) for an efficient catalytic oxidation process.

中文翻译：

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表面羟基：CrOx/TiO2催化剂高效催化氧化2,2'-二异丁腈的关键

研究了二氧化钛负载氧化铬（CrO _x /TiO ₂）催化剂将2,2'-偶氮二异丁腈氧化为2,2'-偶氮二异丁腈的催化机理，结果表明表面羟基TiO ₂的加入可以促进真正活性中心（Cr-O-Ti）的形成，从而实现高效的催化氧化过程。