Concepedia

S. Ullmann

SU

Statistics

Publications

10

Citations

875

H-Index

10

Active since

1990

Affiliations

Haldor Topsoe (Denmark)(Current)

Technical University of Denmark

S. Ullmann is an author at Haldor Topsoe (Denmark) specializing in materials science, natural sciences, and surface science.

Publications per year

1990–2016

10

Publications

10

Atomic-scale electron microscopy at ambient pressure

J.F. Creemer, Stig Helveg, G.H. Hoveling et al. · Ultramicroscopy · 2008 · 331 citations

, , +9

Dissociation of CH4 on Ni(111) and Ru(0001)

R.C. Egeberg, S. Ullmann, I. Alstrup et al. · Surface Science · 2002 · 106 citations

, , +5

Chemisorption of Methane on Ni(100) and Ni(111) Surfaces with Preadsorbed Potassium

H.S. Bengaard, I. Alstrup, Ib Chorkendorff et al. · Journal of Catalysis · 1999 · 104 citations

, , +12

Xps study of chemisorption of CH4 on Ni(100)

Ib Chorkendorff, I. Alstrup, S. Ullmann · Surface Science · 1990 · 102 citations

, , +9

The interaction of CH4 at high temperatures with clean and oxygen precovered Cu(100)

I. Alstrup, Ib Chorkendorff, S. Ullmann · Surface Science · 1992 · 77 citations

, , +6

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