976 resultados para 101-626D


Relevância:

20.00% 20.00%

Publicador:

Resumo:

While Scanning Tunneling Microscopy (STM) has evolved as an ideal tool to study surface chemistry at the atomic scale, the identification of adsorbed species is often not straightforward. This paper describes a way to reliably identify H2O, CO and O2 on the TiO2 anatase (101) surface with STM. These molecules are of a key importance in the surface chemistry of this and many other (photo-) catalytic materials. They exhibit a wide variety of contrasts in STM images, depending on the tip condition. With clean, metallic tips the molecules appear very similar, i.e., as bright, dimer-like features located in the proximity of surface Ti5c atoms. However, each species exhibits a specific response to the electric field applied by the STM tip. It is shown that this tip–adsorbate interaction can be used to reliably ascertain the identity of such species. The tip–adsorbate interactions, together with comparison of experimental and calculated STM images, are used to analyse and revisit the assignments of molecular adsorbed species reported in recent studies.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Leonhardstift Frankfurt am Main;

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Leonhardstift Frankfurt am Main;

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Rubr. Kapitelanfänge mit roten und blauen Init.; Vorbesitzer: Leonhardstift Frankfurt am Main

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Bartholomaeusstift Frankfurt am Main

Relevância:

20.00% 20.00%

Publicador:

Resumo:

75 Briefe mit Beilagen zwischen Prof. Frances Bartlett Kinne und Max Horkheimer, 1956-1973; 7 Briefe mit Beilagen zwischen Prof. Otto Kirchheimer und Max Horkheimer, 1952-1954; 19 Briefe mit Beilagen zwischen Prof. Guido Kisch und Max Horkheimer, 1955-1956; 23 Briefe mit Beilagen zwischen Walter Kittel (Oberbaurat i. R.), 1964-1973; 14 Briefe mit Beilagen zwischen Jules Klanfer und Max Horkheimer, 1963-1964; 4 Briefe mit Beilagen zwischen Prof. Otto Klineberg und Max Horkheimer, 1960-1961; 1 Brief von Max Horkheimer an Otto Klineberg (Psychologe), 22.6.1960;

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Dominikanerkloster Frankfurt am Main