Surface hydroxyl groups: the key to a CrOx/TiO2 catalyst for efficient catalytic oxidation of 2,2′-hydrazine diisobutyronitrile

Surface hydroxyl groups could contribute to the formation of Cr–O–Ti bonds on the surface of the CrO x /TiO 2 catalyst, which thus promote the oxidation of 2,2′-hydrazobis-isobutyronitrile.