Single-atom tailoring of platinum nanocatalysts for high-performance multifunctional electrocatalysis

Platinum-based nanocatalysts play a crucial role in various electrocatalytic systems that are important for renewable, clean energy conversion, storage and utilization. However, the scarcity and high cost of Pt seriously limit the practical application of these catalysts. Decorating Pt catalysts with other transition metals offers an effective pathway to tailor their catalytic properties, but often at the sacrifice of the electrochemical active surface area (ECSA). Here we report a single-atom tailoring strategy to boost the activity of Pt nanocatalysts with minimal loss in surface active sites. By starting with PtNi alloy nanowires and using a partial electrochemical dealloying approach, we create…

• NS
  National Science Foundation

  Awards: 1800580, 1053575, ACI 1053575
• UD
  U.S. Department of Energy

  Awards: DE SC0004993, 05CH11231, SC0004993
• UI
  UC Irvine Materials Research Institute
• NN
  National Natural Science Foundation of China

  Awards: 51390475, 51761165012, 51525102, 2017YFA0700104
• HE
  Higher Education Discipline Innovation Project

  Award: D17003
• OO
  Office of Science

  Awards: DE SC0004993, DEAC02-05CH11231
• OO
  Office of Naval Research
• DO
  Division of Materials Research
• IF
  Institute for Digital Research and Education, University of California, Los Angeles