Buscar
Mostrando ítems 1-10 de 2368
Thiol Adsorption on the Au(100)-hex and Au(100)-(1 × 1) Surfaces
(American Chemical Society, 2015-06)
Alkanethiol adsorption on the Au(100) surfaces is studied by using scanning tunneling microscopy, X-ray photoelectron spectroscopy, and electrochemical techniques. Adsorption of hexanethiol (HT) on the Au(100)-hex surface ...
Comparative Study of the Adsorption of Thiols and Selenols on Au(111) and Au(100)
(American Chemical Society, 2017-12)
The effect of the Au crystalline plane on the adsorption of different thiols and selenols is studied via reductive desorption (RD) and X-ray photoelectron spectroscopy (XPS) measurements. Self-assembled monolayers (SAMs) ...
Do the joint effects of size, shape and ecocorona influence the attachment and physical eco(cyto)toxicity of nanoparticles to algae?
(2020-03-15)
We systematically investigated how the combinations of size, shape and the natural organic matter (NOM)-ecocorona of gold (Au) engineered nanoparticles (ENPs) influence the attachment of the particles to algae and physical ...
Reactivity and Morphology of Oxygen-Modified Au Surfaces
(American Chemical Society, 2012-08-07)
Inducing the adsorption of oxygen on gold surfaces transforms the inert metal into a surprisingly reactive material, which acts as a highly selective, low-temperature catalyst. The strong interaction of atomic oxygen with ...
Evolution of the electronic structure during the epitaxial growth of Au on Pt(100)
(Elsevier Science, 2016-04)
We report an angle-resolved photoemission study of the electronic structure of Au layers grown epitaxially on Pt(100) in the coverage range 1-10 monolayers (ML). Our results include an analysis of the electronic band ...
New insights into the Sn underpotential deposition on Au(100)
(John Wiley & Sons Ltd, 2012-01)
The underpotential deposition (UPD) of Sn in the system Au(100)/Sn2+, SO42− has been studied by classical electrochemical techniques and in situ scanning tunneling microscopy. The results show that the Sn UPD initiates at ...
A theoretical approach of the ethanol adsorption on Au(100), Au(110) and Au(111) surfaces
(ElsevierNL, 2019)
The adsorption of ethanol on Au(100), Au(110) and Au(111) surfaces was studied using electronic structure calculations under the scheme of the density functional theory (DFT) with van der Waals corrections, vdW-DF2 and PBE ...
Improved electrocatalysis and electrophoretic deposition due to the strong synergy between Au and Ag nanoparticles
(Wiley Blackwell Publishing, Inc, 2020-08-21)
Here we demonstrate that every time Au and Ag NPs are physically mixed together they outperform their monometallic counterparts upon electrocatalysis of hydroquinone (HQ) and electrophoretic deposition (EPD) coverage.We ...
Electrochemical and in-situ stm study of the surface alloy formation in the system Au(100)/Cd
(Elsevier, 2014-06)
The Cd UPD process in the system Au(100)/Cd2+, SO4 2− and the involved Au-Cd surface alloy formation have been investigated, using conventional electrochemical techniques and in-situ STM analysis. The voltammetric experiences ...
Unraveling the Radiation Damage of n-dodecanetiol Self-Assembled Monolayers on Au(100) and Au(111): a Prerequisite to Understand the Oriented-Attachment of Au Nanoparticles
(American Chemical Society, 2021-11)
We present a quantitative X-ray Photoelectron Spectroscopy study on the electron-induced degradation of Self-Assembled Monolayers of n-dodecanethiol on Au(100) and Au(111). This study is motivated by the lack of mechanistic ...