Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 29, 2016
Previous Article Next Article

Tuning the surface electronic structure of a Pt3Ti(111) electro catalyst

Author affiliations

Abstract

Increasing the efficiency and stability of bimetallic electro catalysts is particularly important for future clean energy technologies. However, the relationship between the surface termination of these alloys and their catalytic activity is poorly understood. Therefore, we report on fundamental UHV-SPM, LEED, and DFT calculations of the Pt3Ti(111) single crystal surface. Using voltage dependent imaging the surface termination of Pt3Ti(111) was studied with atomic resolution. Combining these images with simulated STM maps based on ab initio DFT calculations allowed us to identify the three upper layers of the Pt3Ti(111) single crystal and their influence upon the surface electronic structure. Our results show that small changes in the composition of the second and third atomic layer are of significant influence upon the surface electronic structure of the Pt3Ti electro catalyst. Furthermore, we provide relevant insights into the dependence of the surface termination on the preparation conditions.

Graphical abstract: Tuning the surface electronic structure of a Pt3Ti(111) electro catalyst

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 27 Nov 2015, accepted on 24 Jan 2016 and first published on 25 Jan 2016


Article type: Paper
DOI: 10.1039/C5NR08420B
Citation: Nanoscale, 2016,8, 13924-13933
  • Open access: Creative Commons BY license
  •   Request permissions

    Tuning the surface electronic structure of a Pt3Ti(111) electro catalyst

    M. Paßens, V. Caciuc, N. Atodiresei, M. Moors, S. Blügel, R. Waser and S. Karthäuser, Nanoscale, 2016, 8, 13924
    DOI: 10.1039/C5NR08420B

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author