Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst

Maximum atom efficiency as well as distinct chemoselectivity is expected for electrocatalysis on atomically dispersed (or single site) metal centres, but its realization remains challenging so far, because carbon, as the most widely used electrocatalyst support, cannot effectively stabilize them. Here we report that a sulfur-doped zeolite-templated carbon, simultaneously exhibiting large sulfur content (17 wt% S), as well as a unique carbon structure (that is, highly curved three-dimensional networks of graphene nanoribbons), can stabilize a relatively high loading of platinum (5 wt%) in the form of highly dispersed species including site isolated atoms. In the oxygen reduction reaction, this catalyst does not…

• AV
  Alexander von Humboldt-Stiftung
• NR
  National Research Foundation
• PU
  Pohang University of Science and Technology
• NR
  National Research Foundation of Korea

  Awards: 2013M3A6B1078884, 2011-0011392, NRF-2014M1A8A1049256, NRF-2011-0011392
• KA
  Korea Advanced Institute of Science and Technology
• GF
  Global Frontier Hybrid Interface Materials
• KC
  Korea Carbon Capture and Sequestration R and D Center

  Award: NRF-2014M1A8A1049256