open access publication

Article, 2024

Chemisorption of gas atoms on one-dimensional transition-metal halides

Applied Surface Science, ISSN 1873-5584, 0169-4332, Volume 649, Page 159168, 10.1016/j.apsusc.2023.159168

Contributors

Moustafa, Hadeel 0000-0001-7022-0058 [1] Mortensen, Jens Jørgen 0000-0001-5090-6706 [1] Rossmeisl, Jan 0000-0001-7749-6567 [2] Jacobsen, Karsten Wedel 0000-0002-1121-2979 (Corresponding author) [1]

Affiliations

  1. [1] Technical University of Denmark
  2. [NORA names: DTU Technical University of Denmark; University; Denmark; Europe, EU; Nordic; OECD];
  3. [2] University of Copenhagen
  4. [NORA names: KU University of Copenhagen; University; Denmark; Europe, EU; Nordic; OECD]

Abstract

We study computationally the bonding of hydrogen and oxygen to one-dimensional materials with the formula XY3, where X represents Ti, Zr, or Hf and Y represents a halogen atom Cl, Br, or I. The materials consist of chains of transition metal atoms surrounded by halogen atoms with a three-fold rotation symmetry. The chemisorption leads to a reduction in the number of d-electrons in the materials accompanied by significant changes in Fermi energy. The chemisorption energies are seen to correlate with the work functions of the clean systems supporting the view that electron transfer plays a major role in the bonding.

Keywords

Br, Fermi, Fermi energy, HF, Ti, XY3, Zr, atomic Cl, atoms, bonding of hydrogen, bonds, chain, changes, chemisorption, chemisorption energy, cleaning system, d-electrons, electron, electron transfer, energy, formula, function, gas atoms, halides, halogen, halogen atoms, hydrogen, materials, metal atoms, one-dimensional materials, oxygen, reduction, rotation, rotational symmetry, symmetry, system, transfer, transition metal atoms, transition-metal halides

Funders

  • The Velux Foundations

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