Journal
CHEMICAL COMMUNICATIONS
Volume 59, Issue 9, Pages 1225-1228Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc05806e
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Ba2Bi3Ta2O11Cl was successfully prepared via a simple one-step molten salt method, and its crystal morphology and structure were adjusted, leading to a significant improvement in its O-2-evolving activity. In addition, W doping enhances the charge separation efficiency and reduces the energy barrier for water oxidation reaction, thereby improving the activity. Finally, the optimized W-doped sample after molten salt treatment exhibits the highest O-2 production activity (55 μmol h(-1)) without any cocatalyst, which is 6 times higher than that of pristine Ba2Bi3Ta2O11Cl and 2 times higher than that of the undoped Ba2Bi3Ta2O11Cl treated with molten salt, respectively.
Here, we successfully prepared Ba2Bi3Ta2O11Cl via a simple one-step molten salt method and adjusted its crystal morphology and structure, based on which the O-2-evolving activity was significantly improved. In addition, W doping promotes the charge separation efficiency, lowers the energy barrier for water oxidation reaction, and thus improves the activity. Finally, the optimized W-doped sample after molten salt treatment shows the best O-2 production activity (55 mu mol h(-1)) without loading any cocatalyst, which is 6 times higher than that of pristine Ba2Bi3Ta2O11Cl and 2 times higher than that of the undoped Ba2Bi3Ta2O11Cl treated with molten salt, respectively.
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