Stabilization and activation of polyoxometalate over poly(vinyl butylimidazolium) cations towards electrocatalytic water oxidation in alkaline media

Sandwich polyoxometalate [WCo3(H2O)(2)(CoW9O34)(2)](12-) (Co-WCo3) heterogenized with poly(vinyl butyl imidazolium) cations (PVIM+) acts as a stable electrochemical water oxidation catalyst in 1 M KOH with 0.28 V@10 mA cm(-2) overpotential and TOF of 6.16 s(-1). Various in situ spectroelectrochemical studies and control experiments provide the details of the catalytic activities and long-term stability of the catalyst.

Automated summary

The sandwich polyoxometalate [WCo3(H2O)(2)(CoW9O34)(2)](12-) (Co-WCo3) heterogenized with poly(vinyl butyl imidazolium) cations (PVIM+) acts as a stable electrochemical water oxidation catalyst in 1 M KOH with 0.28 V@10 mA cm(-2) overpotential and TOF of 6.16 s(-1). Various in situ spectroelectrochemical studies and control experiments provide the details of the catalytic activities and long-term stability of the catalyst.