Atomically engineering activation sites onto metallic 1T-MoS2 catalysts for enhanced electrochemical hydrogen evolution

Abstract Engineering catalytic sites at the atomic level provides an opportunity to understand the catalyst’s active sites, which is vital to the development of improved catalysts. Here we show a reliable and tunable polyoxometalate template-based synthetic strategy to atomically engineer metal doping sites onto metallic 1T-MoS 2 , using Anderson-type polyoxometalates as precursors. Benefiting from engineering nickel and oxygen atoms, the optimized electrocatalyst shows great enhancement in the hydrogen evolution reaction with a positive onset potential of ~ 0 V and a low overpotential of −46 mV in alkaline electrolyte, comparable to platinum-based catalysts. First-principles calculations reveal co-doping…

• NS
  National Science Foundation

  Awards: CHE-1338173, 1704992, CEBT-1704992, 1338173
• UD
  U.S. Department of Energy

  Awards: 76SF00515, DE-AC02, Contract No. DE-AC02-76SF00515, AC02-76SF00515, No. DE-AC02-76SF00515, DE-AC02-
• SD
  San Diego State University
• UI
  UC Irvine Materials Research Institute
• NN
  National Natural Science Foundation of China

  Awards: 21631007, 61722403 and 11674121, 61722403, 21225103, 11674121, 91022010, 21471087
• JU
  Jilin University
• TU
  Tsinghua University

  Awards: 20131089204, No. 20131089204
• OO
  Office of Science

  Awards: AC02-76SF00515, DE-AC02-76SF00515, DE-AC02, 76SF00515
• UO
  University of California, Irvine
• PF
  Program for Jilin University Science and Technology Innovative Research Team
• SR
  Specialized Research Fund for the Doctoral Program of Higher Education of China

  Award: 20131089204
• DO
  Division of Materials Research

  Award: CHE-1338173
• DO
  Division of Chemistry

  Awards: CHE-1338173, 1338173
• BE
  Basic Energy Sciences

  Awards: DE-AC02, DE-AC02-76SF00515, 76SF00515, Contract No. DE-AC02-76SF00515, AC02-76SF00515
• SN
  SLAC National Accelerator Laboratory

  Awards: Contract No. DE-AC02-76SF00515, AC02-76SF00515, DE-AC02-76SF00515