The adsorption properties of structurally well defined bimetallic Pt/Ru(0001) surfaces, consisting of a Ru(0001) substrate partly or fully covered by monolayer Pt islands or a monolayer Pt film, were studied by temperature programmed desorption (TPD) using CO and deuterium as probe molecules. Additionally, the adsorption of CO was investigated by infrared reflection absorption spectroscopy (IRA...

We report on a two-dimensional (2D) V1–xPtxSe2 alloy that exhibits ferromagnetic order and Rashba spin–orbit coupling. Although ferromagnetism is absent in 1T-VSe2 because of the competition with charge density wave phase, we demonstrate theoretically experimentally substitution vanadium by platinum VSe2 (10–50%) to form homogeneous 2D restores down one monolayer V0.65Pt0.35Se2. Moreover, prese...

This paper presents the results of numerical calculations magnetic characteristics Co and Fe monolayer films on Cu Pt surfaces using VASP software package. The values ​​of difference between total energies antiferromagnetic ferromagnetic configurations are calculated depending convergence parameters thickness nonmagnetic material. anisotropy moment atoms in structures / Co, Fe, determined orien...

We outline a systematic experimental and theoretical study on the influence of ruthenium contamination oxygen reduction activity (ORR) Pt/C catalyst at potentials relevant to polymer electrolyte fuel cell cathode. A commercial was contaminated by different amounts ruthenium, equivalent 0.15–4 monolayers. The resulting ruthenium-contaminated powders were characterized energy–dispersive x–ray spe...

Absrract This paper describes research in tw'o areas: heterogeneous catalysis and molecular self-asiembly. The work in heterogeneous catalysis used the platinum-catalyzed hydrogenation of diolefin(dialkyl)platinum(ll) complexes to generate platinum surface alkyls of known structure. The structure and rcactrvity of these surface alkyls were inferred from characteristic processes occurring on the...

In the interpretation of scanning tunneling spectroscopy (STS) data on molecular nanostructures the tunneling conductance is often assumed to be proportional to the local density of states of the molecule. This precludes the possibility of observing negative diierential resistance (NDR). We report here the observation of NDR in the current-voltage (I-V) characteristics of a self-assembled monol...

The platinum-based anticancer drugs cisplatin, carboplatin, and oxaliplatin are an important component of chemotherapy but are limited by severe dose-limiting side effects and the ability of tumors to develop resistance rapidly. These drugs can be improved through the use of drug-delivery vehicles that are able to target cancers passively or actively. In this study, we have tethered the active ...