Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Ralf Vanselow"'
Autor:
Ralf Vanselow, Russell Howe
This volume contains review articles which were written by the invited speak ers of the seventh International Summer Institute in Surface Science (ISISS), held at the University of Wisconsin - Milwaukee in July 1985. The form of ISISS is a set of t
Autor:
Ralf Vanselow, X.Q.D. Li
Publikováno v:
Surface Science. 301:L229-L234
Vapour growth as a function of sample temperature was studied with FEM in the clean vicinal areas of Rh{111}; and Rh{110}. A fairly steady growth was observed up to about 700 K: Classical growth at T edges of {111} and at 680 K along the 〈100〉 ed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70ef25b55ed91a3c174dfa1a1151c9e6
https://doi.org/10.1016/0039-6028(94)91278-5
https://doi.org/10.1016/0039-6028(94)91278-5
Autor:
Ralf Vanselow, X.Q.D. Li
Publikováno v:
Surface Science Letters. 281:326-330
Vapour growth as a function of sample temperature was studied with FEM in the clean vicinal areas of Ta{110} and Ta{110}. A fairly steady growth was observed up to about 800 K: Classical growth at T Tc is in agreement with a prediction by Burton and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::258ec6b37f743d022166a4a834761d72
https://doi.org/10.1016/0167-2584(93)91174-m
https://doi.org/10.1016/0167-2584(93)91174-m
Autor:
Ralf Vanselow
Publikováno v:
Surface Science. 279:L213-L218
After heat treatment at ∼1600 K and rapid quenching, thermal roughening through kink formation could be observed on “FEM-clean” Pt{110} and on all its vicinal areas (which are made up of {110} terraces). Noticeable exceptions were the areas bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a2bf3bad8957523b0d68526a26cf6b5
https://doi.org/10.1016/0039-6028(92)90542-e
https://doi.org/10.1016/0039-6028(92)90542-e
Autor:
X.Q.D. Li, Ralf Vanselow
Publikováno v:
Surface Science. 264:L200-L206
Field emission studies on clean, thermally rounded Pt and Rh crystallites show that the work function of a kinked area is determined by the terrace structure, the kink atom density and the surface dipole moment of the kink atom. The dipole moment dec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66086db661a95b359a5ef77efab2fe6d
https://doi.org/10.1016/0039-6028(92)90154-x
https://doi.org/10.1016/0039-6028(92)90154-x
Autor:
Ralf Vanselow
Publikováno v:
Catalysis Letters. 10:19-26
Banholzer et al. used an orbital symmetry model to predict the activity of various Pt faces for the dissociation of adsorbed NO. The predictions were later extended to the adsorption system CO/Pt. Our experimentally observed activities for the dissoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1984b2725139157343905fc7c3d9f9ea
https://doi.org/10.1007/bf00764732
https://doi.org/10.1007/bf00764732
Publikováno v:
Surface Science. 225:L29-L32
Carbon monoxide thermally dissociates in the kinked areas of a rounded Pt single crystal. The created C atoms cause a work function increase (Δφ = + 0.04 eV ({430}) to + 0.14 eV ({210}); experimental error in Δφ: ± 0.02 eV), which appears to dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0096be845f609a17ad5d282c9b087db2
https://doi.org/10.1016/0039-6028(90)90415-5
https://doi.org/10.1016/0039-6028(90)90415-5
Autor:
X.Q.D. Li, Ralf Vanselow
Publikováno v:
Surface Science. 236:L369-L371
Using FEM, work function measurements were carried out on kinked surface areas of Pt and Rh ({210}, {531}Rh, {321}, {520}, {310}, {320}, {430} and {741}Pt). The work function change after saturated CO adsorption at room temperature, ΔoCO, increases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4f478ef3d9150c53124c7c25c041f50
https://doi.org/10.1016/0039-6028(90)90466-l
https://doi.org/10.1016/0039-6028(90)90466-l
Autor:
Ralf Vanselow, X.Q.D. Li
Publikováno v:
Surface Science. 273:L487
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d663ba388d27a35f55fd44f006122a39
https://doi.org/10.1016/0039-6028(92)90064-d
https://doi.org/10.1016/0039-6028(92)90064-d
Autor:
Ralf Vanselow
Publikováno v:
Surface Science. 149:381-393
It could be demonstrated that, as in the case of thermionic ion emission [Pederson and Vanselow, Surface Sci. 135 (1983) 553; Vanselow and Pederson, Surface Sci. 140 (1984) 123], thermionic electron emission can be described by j = ∗ j exp (φ/k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66b7bf310dd2f89337fd49c42a9125ef
https://doi.org/10.1016/0039-6028(85)90070-6
https://doi.org/10.1016/0039-6028(85)90070-6