Figure Abstract (IMAGE)

Dalian Institute of Chemical Physics, Chinese Academy Sciences

Figure Abstract

Caption

Under formaldehyde-acetic acid condensationreaction conditions, the V4+ phase (VO)2P2O7 remains stable, while V⁵⁺ phases transform due to lattice oxygen loss. They ultimately form a reduced V⁴⁺ phase (R1-VOHPO4), which can reversibly convert back into an intermediate αII-VOPO4 phase.Different phases play distinct roles in the reaction, collectively determining catalytic performance.

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Chinese Journal of Catalysis

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