Surface composition of some selected Group VIII/gold and Group VIII/tin alloys

P. Biloen; R. Bouwman; R.A. Santen, van; H.H. Brongersma

Surface composition of some selected Group VIII/gold and Group VIII/tin alloys

P. Biloen, R. Bouwman, R.A. Santen, van, H.H. Brongersma

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

We have determined the surface composition of three different solid solutions (5 at. % Ni-Au, 4 at. % Pd-Au and 14 at. % Pt-Au) and two stoichiometric compounds (Ni3Sn and Pt3Sn), all of them selected because of their significance in current catalytic work on group VIII/"inert metal" alloys. Low-energy ion scattering (LEIS), Auger spectroscopy (AES) and selective CO chemisorption applied to Ft3Sn and Ni3Sn yield consistent results. Surface compositions work out at PtO.7Sn and NiO. 2Sn. LEIS applied to 4 at. % Pd-Au and 5 at. % Ni-Au yields surface compositions of 0.8 at. % Pd and 1.6 at. % Ni respectively. AES and CO chemisorption applied to 14 at. % Pt-Au yield surface compositions between 5 and 10 at. % Pt. The results are compared with contemporary theories on surface segregation.

Original language	English
Title of host publication	Proceedings of the Seventh International Vacuum Congress and third Conference on Solid Surfaces, 12-16 Sept 1977, Vienna
Editors	R. Dobrozemsky
Publisher	International Union for Vacuum Science, Technique and Applications
Pages	1401-
Publication status	Published - 1977

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Biloen, P., Bouwman, R., Santen, van, R. A., & Brongersma, H. H. (1977). Surface composition of some selected Group VIII/gold and Group VIII/tin alloys. In R. Dobrozemsky (Ed.), Proceedings of the Seventh International Vacuum Congress and third Conference on Solid Surfaces, 12-16 Sept 1977, Vienna (pp. 1401-). International Union for Vacuum Science, Technique and Applications.

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title = "Surface composition of some selected Group VIII/gold and Group VIII/tin alloys",

abstract = "We have determined the surface composition of three different solid solutions (5 at. % Ni-Au, 4 at. % Pd-Au and 14 at. % Pt-Au) and two stoichiometric compounds (Ni3Sn and Pt3Sn), all of them selected because of their significance in current catalytic work on group VIII/{"}inert metal{"} alloys. Low-energy ion scattering (LEIS), Auger spectroscopy (AES) and selective CO chemisorption applied to Ft3Sn and Ni3Sn yield consistent results. Surface compositions work out at PtO.7Sn and NiO. 2Sn. LEIS applied to 4 at. % Pd-Au and 5 at. % Ni-Au yields surface compositions of 0.8 at. % Pd and 1.6 at. % Ni respectively. AES and CO chemisorption applied to 14 at. % Pt-Au yield surface compositions between 5 and 10 at. % Pt. The results are compared with contemporary theories on surface segregation.",

author = "P. Biloen and R. Bouwman and {Santen, van}, R.A. and H.H. Brongersma",

year = "1977",

language = "English",

pages = "1401--",

editor = "R. Dobrozemsky",

booktitle = "Proceedings of the Seventh International Vacuum Congress and third Conference on Solid Surfaces, 12-16 Sept 1977, Vienna",

publisher = "International Union for Vacuum Science, Technique and Applications",

}

Surface composition of some selected Group VIII/gold and Group VIII/tin alloys. / Biloen, P.; Bouwman, R.; Santen, van, R.A. et al.
Proceedings of the Seventh International Vacuum Congress and third Conference on Solid Surfaces, 12-16 Sept 1977, Vienna. ed. / R. Dobrozemsky. International Union for Vacuum Science, Technique and Applications, 1977. p. 1401-.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Surface composition of some selected Group VIII/gold and Group VIII/tin alloys

AU - Biloen, P.

AU - Bouwman, R.

AU - Santen, van, R.A.

AU - Brongersma, H.H.

PY - 1977

Y1 - 1977

N2 - We have determined the surface composition of three different solid solutions (5 at. % Ni-Au, 4 at. % Pd-Au and 14 at. % Pt-Au) and two stoichiometric compounds (Ni3Sn and Pt3Sn), all of them selected because of their significance in current catalytic work on group VIII/"inert metal" alloys. Low-energy ion scattering (LEIS), Auger spectroscopy (AES) and selective CO chemisorption applied to Ft3Sn and Ni3Sn yield consistent results. Surface compositions work out at PtO.7Sn and NiO. 2Sn. LEIS applied to 4 at. % Pd-Au and 5 at. % Ni-Au yields surface compositions of 0.8 at. % Pd and 1.6 at. % Ni respectively. AES and CO chemisorption applied to 14 at. % Pt-Au yield surface compositions between 5 and 10 at. % Pt. The results are compared with contemporary theories on surface segregation.

AB - We have determined the surface composition of three different solid solutions (5 at. % Ni-Au, 4 at. % Pd-Au and 14 at. % Pt-Au) and two stoichiometric compounds (Ni3Sn and Pt3Sn), all of them selected because of their significance in current catalytic work on group VIII/"inert metal" alloys. Low-energy ion scattering (LEIS), Auger spectroscopy (AES) and selective CO chemisorption applied to Ft3Sn and Ni3Sn yield consistent results. Surface compositions work out at PtO.7Sn and NiO. 2Sn. LEIS applied to 4 at. % Pd-Au and 5 at. % Ni-Au yields surface compositions of 0.8 at. % Pd and 1.6 at. % Ni respectively. AES and CO chemisorption applied to 14 at. % Pt-Au yield surface compositions between 5 and 10 at. % Pt. The results are compared with contemporary theories on surface segregation.

M3 - Conference contribution

SP - 1401-

BT - Proceedings of the Seventh International Vacuum Congress and third Conference on Solid Surfaces, 12-16 Sept 1977, Vienna

A2 - Dobrozemsky, R.

PB - International Union for Vacuum Science, Technique and Applications

ER -

Surface composition of some selected Group VIII/gold and Group VIII/tin alloys

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