4.8 Article

Perfect Photon-to-Hydrogen Conversion Efficiency

Journal

NANO LETTERS
Volume 16, Issue 3, Pages 1776-1781

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b04813

Keywords

Photocatalysis; solar-to-fuel conversion; hydrogen; water splitting; nanoparticles

Funding

  1. I-CORE Program of Planning and Budgeting Committee
  2. Israel Science Foundation [152/11]
  3. Adelis Foundation
  4. Schulich postdoctoral fellowship

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We report a record 100% photon-to-hydrogen production efficiency, under visible light illumination, for the photocatalytic water-splitting reduction half-reaction. This result was accomplished by utilization of nanoparticle-based photocatalysts, composed of Pt-tipped CdSe@CdS rods, with a hydroxyl anion radical redox couple operating as a shuttle to relay the holes. The implications of such record efficiency for the prospects of realizing practical over all water splitting and solar-to-fuel energy conversion are discussed.

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