نتایج جستجو برای Electrodeposition kinetics

تعداد نتایج: 59599  

2006
A. Radisic, P. M. Vereecken, P. C. Searson, F. M. Ross,

We describe a study, using in situ transmission electron microscopy, of the shape and nucleation kinetics of three-dimensional islands formed during the electrochemical deposition of copper. By operating an electrochemical cell within an electron microscope, we obtain real-time images of the formation of copper islands on a gold electrode while simultaneously recording electrochemical data such...

Journal: :Physical chemistry chemical physics : PCCP 2014
P N Bartlett, D A Cook, M W George, A L Hector, J Ke, W Levason, G Reid, D C Smith, W Zhang,

Recent studies have shown that it is possible to electrodeposit a range of materials, such as Cu, Ag and Ge, from various supercritical fluids, including hydrofluorocarbons and mixtures of CO2 with suitable co-solvents. In this perspective we discuss the relatively new field of electrodeposition from supercritical fluids. The perspective focuses on some of the underlying physical chemistry and ...

Journal: :Science 2000
M P Zach, K H Ng, R M Penner,

Metallic molybdenum (Mo(o)) wires with diameters ranging from 15 nanometers to 1.0 micrometers and lengths of up to 500 micrometers (0.5 millimeters) were prepared in a two-step procedure. Molybdenum oxide wires were electrodeposited selectively at step edges and then reduced in hydrogen gas at 500 degrees C to yield Mo(o). The hemicylindrical wires prepared by this technique were self-uniform,...

2004
K. Seshadri,

Pulsed electrolysis of copper has been systematically investigated by electrodepositing copper from a copper sulfate bath. Pulse duty cycles of 5 to 80 percent, at frequencies from 10 to 100 Hz with current densities ranging from 2.5 to 7.5 A/dm2 were employed. The appearance of Hull Cell panels with both direct current and pulsed current was recorded. The influence of pulsed current on current...

2016
Michelle Heredia, Parag Banerjee,

From previous experiments, it was determined that nickel was able to coat boron fiber, however this was done unevenly, with cracks characterizing the coating. This was where it was hypothesized that the boron fiber crossed the interface of the nickel electrolyte solution during electrodeposition. This was different than the coating at the middle, which was all under the electrolyte solution, an...

M. Ghorbani and A.M. Saedi,

Nanowire is a cylindrical nano-structure with nanometer dimensions. In this research, the studied nanowire was made from the magnetic triple Ni-Fe-Co alloy. We utilized ordered porous anodic aluminum oxide as a template for the nanowire deposition. The nanowire arrays were electrodeposited in the cylindrical pores of the oxide layer by AC potential in a simple sulfate bath. Then the relation ...

Journal: :Chemical communications 2005
Grzegorz A Orlowski, Somenath Chowdhury, Yi-Tao Long, Todd C Sutherland, Heinz-Bernhard Kraatz,

Using electrodeposition of cyclic and acyclic Fc-peptide disulfides tightly-packed Fc-peptide monolayers were conveniently formed, which exhibit significant differences in their electron transfer kinetics.

2008
Hosik Park, Perla Ayala, Marc A. Deshusses, Ashok Mulchandani, Heechul Choi, Nosang V. Myung,

Electrodeposition of maghemite ( -Fe2O3) nanoparticles Hosik Park a,b, Perla Ayala a, Marc A. Deshusses a, Ashok Mulchandani a, Heechul Choi b, Nosang V. Myung a,∗ a Department of Chemical and Environmental Engineering, University of California-Riverside, Riverside, CA 92521, United States b Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology, 1 Oryo...

2007
Bongyoung Yoo, Feng Xiao, Krassimir N. Bozhilov, Jennifer Herman, Margaret A. Ryan, Nosang V. Myung,

There is a renewed interest in the field of thermoelectrics because of the remarkable efficiency improvement that can be achieved in nanostructured materials, for example, superlattice thin films and quantum dots. Theoretical calculations predict that further enhancement of the thermoelectric figure of merit can be achieved in superlattice nanowires (zero-dimensional) [5] rather than convention...

2003
S. R. Natarajan,

he electrodeposition of zinc on iron and steel for protection T against corrosion was first proposed in 1840. The combination of aesthetic appeal and protection thus provided has established bright zinc plating as an important process in modern industry. In today's technology, zinc is preferably deposited from acid-type electrolytes, especially chloride, as an alternative to those based on cyan...

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