Edge-terminated molybdenum disulfide with a 9.4-Å interlayer spacing for electrochemical hydrogen production

Layered molybdenum disulfide has demonstrated great promise as a low-cost alternative to platinum-based catalysts for electrochemical hydrogen production from water. Research effort on this material has focused mainly on synthesizing highly nanostructured molybdenum disulfide that allows the exposure of a large fraction of active edge sites. Here we report a promising microwave-assisted strategy for the synthesis of narrow molybdenum disulfide nanosheets with edge-terminated structure and a significantly expanded interlayer spacing, which exhibit striking kinetic metrics with onset potential of −103 mV, Tafel slope of 49 mV per decade and exchange current density of 9.62 × 10−3 mA cm−2, performing among the…

• UD
  U.S. Department of Energy

  Awards: AC02-06CH11357, Contract No. DE-AC02-06CH11357, DE-AC02, 06CH11357, No. DE-AC02-06CH11357, DE-AC02-06CH11357, DE-AC02-
• OO
  Office of Science

  Awards: DE-AC02-06CH11357, Contract No. DE-AC02-06CH11357, DE-AC02, No. DE-AC02-06CH11357, 06CH11357, AC02-06CH11357
• BE
  Basic Energy Sciences

  Awards: DE-AC02, Contract No. DE-AC02-06CH11357, AC02-06CH11357, 06CH11357