Specific Peptide Regulated Synthesis of Ultrasmall Platinum Nanocrystals

摘要

Platinum (Pt) nanocrystals (NCs) have been extensively explored because of their excellent catalytic performance in applications such as fuel cell and hydrogen generation.Pt NCs of variable sizes have been synthesized using different stabilizing agents.Systematic studies have shown that the size of Pt NCs has an obvious effect on their catalytic activity and selectivity,especially for sub-10 nm NCs with a high ratio of atoms at corners and edges.Ultrasmall Pt NCs with sizes under 5 nm are found to have a particularly high catalytic performance in some reactions.To date, the synthesis of ultrasmall Pt NCs under 5 nm involves rigorous synthetic conditions such as high temperature and hazardous organic solvent.