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A research team led by Professor Zeng Jie at the University of Science and Technology of China (USTC) has achieved a significant advancement in manipulating the coordination environment of single atoms. By meticulously adjusting the chloride ligands in the metal precursor, the team successfully altered the coordination environment of platinum atoms situated on ceria nanoislands. These platinum atoms were dispersed on a ceria support embedded within silica, and through precise control of calcination conditions, the team transformed the platinum atoms from a surface chloride-containing coordination configuration to a chloride-free state. This study uncovered that platinum single atoms coordinated with chloride exhibit enhanced oxygen and catalytic activity.
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