Tailoring Electrocatalytic Properties by Nanoengineered Bulk Metal Glass Surfaces

2016 ◽  
Keyword(s):  
Bulk Metal ◽  
Electrocatalytic Properties ◽  
Glass Surfaces

scholarly journals The electrical conductivity of thin metallic films I—Rubidium on pyrex glass surfaces

1936 ◽  
Vol 157 (891) ◽  
pp. 311-330 ◽  
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Electrical Conductivity ◽  
Film Thickness ◽  
High Vacuum ◽  
Mean Free Path ◽  
Metallic Films ◽  
Bulk Metal ◽  
Modern Technique ◽  
Glass Surfaces

This paper describes measurements of the resistivity of thin films of rubidium, deposited on cooled pyrex surfaces by a method which allows the use of the conditions of purity and high vacuum possible with modern technique. In this work, by vigorous heat treatment in high vacua, clean pyrex surfaces have been obtained on which stable and coherent films as thin as 40 A. have been produced. Conductivities have been obtained with a number of atoms on the surface corresponding to less than the number contained in a monatomic layer of rubidium; moreover, the approach of thicker films to the resistivity of the bulk metal is in agreement with that calculated from a simple theory which takes account of the fact that the film thickness is less than the normal electronic mean free path in the bulk metal.

Acquired Factor XI Inhibitors in Two Patients with Hereditary Factor XI Deficiency

1984 ◽  
Vol 51 (03) ◽  
pp. 371-375 ◽  
Author(s):  
Kangathevy Morgan ◽  
Sandra Schiffman ◽  
Donald Feinstein
Keyword(s):  
Protein A ◽  
Lambda Light Chain ◽  
Factor Xi ◽  
Spontaneous Bleeding ◽  
Factor Xi Deficiency ◽  
Hereditary Factor ◽  
Coagulation Mechanism ◽  
Factor Xia ◽  
Polyclonal Igg ◽  
Glass Surfaces

SummaryTwo patients with hereditary factor XI deficiency developed inhibitors following plasma transfusions. Neither had severe spontaneous bleeding. The patients’ plasmas neutralized both factor XI in plasma, purified factor XI, and purified factor XIa. The inhibitor in both patients’ plasmas adsorbed to Protein A- Sepharose. The inhibitors eluted from Protein A-Sepharose were partially neutralized by kappa and lambda light chain antisera indicating that they were polyclonal IgG antibodies. Both inhibitors markedly decreased adsorption of factor XI to glass surfaces. The cleavage of factor XI by trypsin was unaffected by the inhibitors. The lack of severe spontaneous bleeding in both of these patients strongly suggests that an alternate coagulation mechanism bypassing factor XI must compensate for this severe defect.

Bulk Metal Electrodeposition in the Sub-monolayer Regime: Ru on Pt(111)*

1997 ◽  
Vol 1 (1) ◽  
pp. 137-150
Author(s):  
K. A. Friedrich ◽  
K.-P. Geyzers ◽  
A. Marmann ◽  
U. Stimming ◽  
R. Vogel
Keyword(s):  
Bulk Metal ◽  
Metal Electrodeposition

Incorporation of Multi Wall Carbon Nanotubes into Glass-Surfaces via Laser-Treatment

2003 ◽  
Vol 772 ◽  
Author(s):  
T. Seeger ◽  
G. de la Fuente ◽  
W.K. Maser ◽  
A.M. Benito ◽  
A. Righi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Continuous Wave ◽  
Silica Surface ◽  
Multi Wall Carbon Nanotubes ◽  
Composite Formation ◽  
Multi Walled Carbon Nanotubes ◽  
Glass Surfaces ◽  
Walled Carbon Nanotubes ◽  
First Time ◽  
Scanning Electron

AbstractCarbon nanotubes (CNT) are interesting candidates for the reinforcement in robust composites and for conducting fillers in polymers due to their fascinating electronic and mechanical properties. For the first time, we report the incorporation of multi walled carbon nanotubes (MWNTs) into silica-glass surfaces by means of partial surface-melting caused by a continuous wave Nd:YAG laser. MWNTs were detected being well incorporated in the silica-surface. The composites are characterized using scanning electron microscopy (SEM) and Raman-spectroscopy. A model for the composite-formation is proposed based on heatabsorption by MWNTs and a partial melting of the silica-surface.

First electrochemical synthesis of mesoporous RhNi alloy films for an alkali-mediated hydrogen evolution reaction

2021 ◽  
Vol 9 (5) ◽  
pp. 2754-2763
Author(s):  
Kenya Kani ◽  
Hyunsoo Lim ◽  
Andrew E. Whitten ◽  
Kathleen Wood ◽  
Anya J. E. Yago ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrochemical Synthesis ◽  
Polymeric Micelles ◽  
Deposition Method ◽  
Alloy Films ◽  
Electrocatalytic Properties ◽  
Self Assembled

The mesoporous RhNi alloy films are synthesized by controlling the concentration of Rh precursor, applied potentials, and pH via the electrochemical co-deposition method with self-assembled polymeric micelles templates for enhancing electrocatalytic properties.

scholarly journals Physical and chemical reactivity of mechanically primed glass surfaces of CSP reflectors

2020 ◽  
Author(s):  
Sofia Boukheir ◽  
Abdelouahed Chbihi ◽  
Amal Matal ◽  
Sara Lakhouil ◽  
Sanae Naamane ◽  
...  
Keyword(s):  
Chemical Reactivity ◽  
Glass Surfaces ◽  
Physical And Chemical

scholarly journals Development of a numerical compensation framework for geometrical deviations in bulk metal forming exploiting a surrogate model and computed compatible stresses

2021 ◽  
Author(s):  
Lorenzo Scandola ◽  
Christoph Büdenbender ◽  
Michael Till ◽  
Daniel Maier ◽  
Michael Ott ◽  
...  
Keyword(s):  
Finite Element ◽  
Surrogate Model ◽  
Metal Forming ◽  
Computer Aided Design ◽  
Transition Process ◽  
Reference Points ◽  
Compensation Method ◽  
Tool Geometry ◽  
Bulk Metal ◽  
Bulk Metal Forming

AbstractThe optimal design of the tools in bulk metal forming is a crucial task in the early design phase and greatly affects the final accuracy of the parts. The process of tool geometry assessment is resource- and time-consuming, as it consists of experience-based procedures. In this paper, a compensation method is developed with the aim to reduce geometrical deviations in hot forged parts. In order to simplify the transition process between the discrete finite-element (FE) mesh and the computer-aided-design (CAD) geometry, a strategy featuring an equivalent surrogate model is proposed. The deviations are evaluated on a reduced set of reference points on the nominal geometry and transferred to the FE nodes. The compensation approach represents a modification of the displacement-compatible spring-forward method (DC-SF), which consists of two elastic FE analyses. The compatible stress originating the deviations is estimated and subsequently applied to the original nominal geometry. After stress relaxation, an updated nominal geometry of the part is obtained, whose surfaces represent the compensated tools. The compensation method is verified by means of finite element simulations and the robustness of the algorithm is demonstrated with an additional test geometry. Finally, the compensation strategy is validated experimentally.

Sign in / Sign up

Export Citation Format

Share Document