Pentlandite rocks as sustainable and stable efficient electrocatalysts for hydrogen generation

  title={Pentlandite rocks as sustainable and stable efficient electrocatalysts for hydrogen generation},
  author={Bharathi Konkena and Kai Junge Puring and I. Sinev and Stefan M Piontek and Oleksiy Khavryuchenko and Johannes P. D{\"u}rholt and Rochus Schmid and H. T{\"u}ys{\"u}z and M. Muhler and W. Schuhmann and Ulf-Peter Apfel},
  journal={Nature Communications},
  • Bharathi Konkena, Kai Junge Puring, +8 authors Ulf-Peter Apfel
  • Published 2016
  • Materials Science, Medicine
  • Nature Communications
  • The need for sustainable catalysts for an efficient hydrogen evolution reaction is of significant interest for modern society. Inspired by comparable structural properties of [FeNi]-hydrogenase, here we present the natural ore pentlandite (Fe4.5Ni4.5S8) as a direct ‘rock' electrode material for hydrogen evolution under acidic conditions with an overpotential of 280 mV at 10 mA cm−2. Furthermore, it reaches a value as low as 190 mV after 96 h of electrolysis due to surface sulfur depletion… CONTINUE READING
    65 Citations

    Figures and Topics from this paper

    Pyrite-Type Nanomaterials for Advanced Electrocatalysis.
    • 63
    Conductive Tungsten Oxide Nanosheets for Highly Efficient Hydrogen Evolution.
    • 73
    Rationally engineered active sites for efficient and durable hydrogen generation
    • 13
    • PDF
    Efficient hydrogen production on MoNi4 electrocatalysts with fast water dissociation kinetics
    • 303
    • PDF
    Sulfur-Doped Nickel Phosphide Nanoplates Arrays: A Monolithic Electrocatalyst for Efficient Hydrogen Evolution Reactions.
    • 36


    Enhanced catalytic activity in strained chemically exfoliated WS₂ nanosheets for hydrogen evolution.
    • 1,588
    • PDF
    An efficient molybdenum disulfide/cobalt diselenide hybrid catalyst for electrochemical hydrogen generation
    • 560
    • PDF
    Hydrogen-evolution catalysts based on non-noble metal nickel-molybdenum nitride nanosheets.
    • 842
    • PDF
    Metallic Iron-Nickel Sulfide Ultrathin Nanosheets As a Highly Active Electrocatalyst for Hydrogen Evolution Reaction in Acidic Media.
    • 394
    High-index faceted Ni3S2 nanosheet arrays as highly active and ultrastable electrocatalysts for water splitting.
    • 919
    • PDF
    Ultrathin WS2 nanoflakes as a high-performance electrocatalyst for the hydrogen evolution reaction.
    • 480
    • PDF
    Earth-Abundant Metal Pyrites (FeS2, CoS2, NiS2, and Their Alloys) for Highly Efficient Hydrogen Evolution and Polysulfide Reduction Electrocatalysis
    • 378