焦磷酸氧钒

焦磷酸氧钒是一种无机化合物，化学式为(VO)2P2O7，它存在α、β和γ三种晶型。它可由磷酸氢钒酰(IV)（VO(HPO4)·H2O）在350 °C以上的热分解制得。Preparation and characterization of vanadyl hydrogen phosphate hemihydrate and its topotactic transformation to vanadyl pyrophosphate. J. Am. Chem. Soc. 1984. 106 (26). .氨可以将其中的钒从四价还原至三价。Redox interaction of ammonia with (VO)2P2O7. J. Chem. Soc., Faraday Trans., 1995, 91, 725-731. .它和磷酸钒(III)、二氧化钒在二氯化铂存在下反应，可以得到钒的混合价态磷酸盐VIIIVIV3O3(PO4)3：VIIIVIV3O3(PO4)3: A Novel Vanadium Phosphate for Selective Oxidation of Light Hydrocarbons. Chemistry of Materials, 2007. 19 (17). 
 (VO)2P2O7 + VPO4 + VO2 → V4O3(PO4)3

它和金属氧化物（MO，M=Co, Ni, Cu）在高温反应，可以得到MV2O2(PO4)2：Beiträge zum thermischen Verhalten und zur Kristallchemie wasserfreier Phosphate. XXXIX. Journal of Inorganic and General Chemistry, 2008. 634 (10): 1677-1686. .
 (VO)2P2O7 + MO → MV2O2(PO4)2 (M=Co, Ni, Cu)

它可用作烷烃及环烷烃氧化的催化剂。The Catalytic Function of Phosphorus Enriched on the Surface of Vanadium-based Catalysts in Selective Oxidations. ChemCatChem, 2023. 15 (21). e202300839. Influence of Steam on a Vanadyl Pyrophosphate Catalyst During Propane Oxidation. J. Phys. Chem. B 2018, 122, 2, 695–704. .Green and selective oxidation of cyclohexane over vanadium pyrophosphate supported on mesoporous KIT-6. Chemical Engineering Journal, 2017. .

参考文献

拓展阅读
 Lucas Foppa, Frederik Rüther, Michael Geske, Gregor Koch, Frank Girgsdies, Pierre Kube, Spencer J. Carey, Michael Hävecker, Olaf Timpe, Andrey V. Tarasov, Matthias Scheffler, Frank Rosowski, Robert Schlögl, and Annette Trunschke. Data-Centric Heterogeneous Catalysis: Identifying Rules and Materials Genes of Alkane Selective Oxidation. J. Am. Chem. Soc. 2023, 145, 6, 3427–3442. .
 Wen-Sheng Dong; Jonathan K. Bartley; Frank Girgsdies; Robert Schlögl; Graham J. Hutchings. The hydration and transformation of vanadyl pyrophosphate. J. Mater. Chem., 2005,15, 4147-4153. .

Category:四价钒化合物
Category:焦磷酸盐