Vanadium pyrophosphate oxides: The role of preparation chemistry in determining renewable acrolein production from glycerol dehydration

- The PEG-derived vanadium phosphorus oxides fabricated as catalysts for the target reaction.
- The acrolein formation rate up to 35.3 mmol gcat−1 h−1 is achievable.
- Type of alcohol and addition of PEG in preparation critically determine catalyst characters.
- Balanced V5+/V4+ ratio and suitable density of medium strong acid sites maximize activity.