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Related Experiment Video

Updated: Jul 4, 2026

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
10:22

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

Pt(x)Ru(1-x)/Ru(0001) surface alloys-formation and atom distribution.

H E Hoster1, A Bergbreiter, P M Erne

  • 1Institute of Surface Chemistry and Catalysis, Ulm University, D-89069, Ulm, Germany. harry.hoster@uni-ulm.de

Physical Chemistry Chemical Physics : PCCP
|June 20, 2008
PubMed
Summary
This summary is machine-generated.

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Platinum-Ruthenium (PtRu) surface alloys form uniformly on a Ruthenium (Ru) substrate without significant Pt loss or ordering. Pt atoms distribute homogeneously across the surface layer, crucial for understanding alloy formation.

Area of Science:

  • Surface science
  • Materials science
  • Nanotechnology

Background:

  • Platinum-Ruthenium (PtRu) alloys are vital catalysts.
  • Understanding surface alloy formation is key to catalyst design.
  • Previous studies explored PtRu bulk alloys and adsorption on similar surfaces.

Purpose of the Study:

  • Investigate the formation and atomic distribution of PtRu surface alloys.
  • Analyze Pt atom distribution on a Ru(0001) substrate after annealing.
  • Determine the density of specific adsorption ensembles as a function of Pt content.

Main Methods:

  • Deposition of submonolayer platinum (Pt) films on a Ruthenium (Ru)(0001) substrate.
  • Annealing the films to approximately 1350 K.
  • Scanning tunneling microscopy (STM) for atomic-scale imaging and analysis.

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Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
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Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

Related Experiment Videos

Last Updated: Jul 4, 2026

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
10:22

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

Main Results:

  • Negligible Pt loss into subsurface regions observed up to near monolayer coverage.
  • Homogeneous distribution of Pt atoms across the Ru surface.
  • Absence of distinct long-range or short-range order in the PtRu surface layer.

Conclusions:

  • PtRu surface alloy formation on Ru(0001) results in a homogeneous distribution of Pt.
  • The findings provide insights into surface alloy formation mechanisms.
  • Results are comparable to PtRu bulk alloys and previous surface alloy adsorption studies.