Simple synthesis of sub-nanometer Pd clusters: High catalytic activity of Pd/PEG-PNIPAM in Suzuki reaction

A temperature-responsive copolymer, i.e., PEG-PNIPAM, was synthesized and stabilized ultra-small Pd clusters were formed on it by direct reduction. The sub-2-nm Pd nanoclusters showed outstanding catalytic activities in Suzuki reactions.