Exceptional activity for direct synthesis of phenol from benzene over PMoV@MOF with O2

Three novel catalysts named as PMo12 − nVn@HKUST-1 (n = 1–3) were designed and obtained through encapsulating vanadium-doped Keggin polyoxometalates (POMs) PMo12 − n Vn into the framework HKUST-1 (also denoted as Cu3(BTC)2, MOF-199). The character structure of PMo12 − n Vn@HKUST-1 was elucidated through the single crystal XRD of PMo11V@HKUST-1. Reaction rate could be greatly enhanced by PMo12 − n Vn@HKUST-1 in liquid hydroxylation of benzene with O2. Only in 20 min, a high TOF (44.2 h− 1) of PMo9V3@HKUST-1 was obtained.

Figure optionsDownload as PowerPoint slideHighlights
► Three novel catalysts PMo12-nVn@HKUST-1 (n = 1–3) were designed and obtained.
► Reaction rate could be greatly enhanced in liquid hydroxylation of benzene.
► Only in 20 min, a high TOF (44.2 h− 1) of PMo9V3@HKUST-1 was obtained.