Jump to main content
Jump to site search


Microscopic evidence for the dissociation of water molecules on the cleaved GaN(1-100)

Abstract

The dissociation of water molecules absorbed on a cleaved non-polar GaN(1-100) surface was studied primarily with synchrotron-based photoemission spectra and calculations with density-functional-theory. The adsorbed water molecules are spontaneously dissociated into hydrogen atoms and hydroxyl groups at either 300 or 130 K, which implies a negligible activation energy (< 11 meV) for the dissociation. The produced H and OH were bound to the surface nitrogen and gallium on GaN(1-100) respectively. These results highlight promising applications of the non-polar GaN(1-100) surface in water dissociation and hydrogen generation.

Back to tab navigation

Supplementary files

Publication details

The article was accepted on 06 Dec 2017 and first published on 06 Dec 2017


Article type: Paper
DOI: 10.1039/C7CP07728A
Citation: Phys. Chem. Chem. Phys., 2017, Accepted Manuscript
  •   Request permissions

    Microscopic evidence for the dissociation of water molecules on the cleaved GaN(1-100)

    S. Wu, L. Lan, P. Cai, Y. Chen, Y. Lai, M. Lin, Y. Hsu, W. Lee, J. Kuo, M. Luo and C. Kuo, Phys. Chem. Chem. Phys., 2017, Accepted Manuscript , DOI: 10.1039/C7CP07728A

Search articles by author

Spotlight

Advertisements