Diamond photochemistry with visible light

Jonathon Barkl, Anna M. Zaniewski, Franz Koeck, Robert J. Nemanich

Research output: Contribution to journalArticle

Abstract

This project demonstrates diamond-based photochemistry using visible light. Diamond has the unique property of having a widely tunable electrochemical surface, with hydrogen terminated diamond known to have a negative electron affinity. This property enables the emission of electrons from the surface of the diamond. In this work, electrons are emitted into an aqueous solution, creating a reservoir of free, solvated electrons, that can be used to initiate energy intensive chemical reactions. We demonstrate that visible light incident on thin films of diamond on molybdenum substrates can be used to reduce nitrogen gas to ammonia via the photogenerated electrons.

Original languageEnglish (US)
Pages (from-to)195-197
Number of pages3
JournalDiamond and Related Materials
Volume96
DOIs
StatePublished - Jun 1 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Materials Chemistry
  • Electrical and Electronic Engineering

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