Easy access to Cu0nanoparticles and porous copper electrodes with high oxidation stability and high conductivity

2012 ◽  
Vol 22 (3) ◽  
pp. 987-993 ◽  
Author(s):  
Christian Kind ◽  
André Weber ◽  
Claus Feldmann
Keyword(s):  
Oxidation Stability ◽  
High Conductivity ◽  
Easy Access ◽  
Copper Electrodes ◽  
Porous Copper ◽  
High Oxidation

scholarly journals Investigation into the Re-Arrangement of Copper Foams Pre- and Post-CO2 Electrocatalysis

Chemistry ◽  
2021 ◽  
Vol 3 (3) ◽  
pp. 687-703
Author(s):  
Jennifer A. Rudd ◽  
Sandra Hernandez-Aldave ◽  
Ewa Kazimierska ◽  
Louise B. Hamdy ◽  
Odin J. E. Bain ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Carbon Dioxide ◽  
Carbon Capture ◽  
Surface Composition ◽  
Structural Rearrangement ◽  
Copper Electrode ◽  
Copper Electrodes ◽  
Porous Copper ◽  
Chemical Products ◽  
Co2 Electrolysis

The utilization of carbon dioxide is a major incentive for the growing field of carbon capture. Carbon dioxide could be an abundant building block to generate higher-value chemical products. Herein, we fabricated a porous copper electrode capable of catalyzing the reduction of carbon dioxide into higher-value products, such as ethylene, ethanol and propanol. We investigated the formation of the foams under different conditions, not only analyzing their morphological and crystal structure, but also documenting their performance as a catalyst. In particular, we studied the response of the foams to CO2 electrolysis, including the effect of urea as a potential additive to enhance CO2 catalysis. Before electrolysis, the pristine and urea-modified foam copper electrodes consisted of a mixture of cuboctahedra and dendrites. After 35 min of electrolysis, the cuboctahedra and dendrites underwent structural rearrangement affecting catalysis performance. We found that alterations in the morphology, crystallinity and surface composition of the catalyst were conducive to the deactivation of the copper foams.

Machining Properties of Insulating ZrO2 Ceramics Using Porous Copper Electrodes

2010 ◽  
Vol 443 ◽  
pp. 608-613 ◽  
Author(s):  
Yasushi Fukuzawa ◽  
Keiji Yukihiro ◽  
Ken Yamasita
Keyword(s):  
Relative Density ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Copper Electrode ◽  
Tool Electrode ◽  
Copper Electrodes ◽  
Porous Copper ◽  
Pulse Electric ◽  
Machining Properties ◽  
Insulating Ceramics

Insulating ceramics were considered as machinable material with the electrical discharge machining method using the assisting electrode method, which was proposed and advanced by the authors. The mechanical properties changed with the experimental parameters, including the physical characteristics of the workpiece and the tool electrode. In this research, sintered ZrO2-Y2O3 insulating ceramics were subjected to EDM. To investigate the effects of the porous tool electrode material on the removal rate, the porous copper cylinder material was fabricated by PECS (pulse electric current sintering) method. The relative density changed from 60 to 95 wt%. The suitable machining characteristics could be obtained with a relative density of 85% at the positive electrode polarity. The shape of electrodes was transcribed on the workpiece surface more precisely than the solid copper electrode.

scholarly journals Synthesis of biolubricants with high viscosity and high oxidation stability

2003 ◽  
Vol 10 (2) ◽  
pp. 150-154 ◽  
Author(s):  
Paolo Bondioli ◽  
Laura Della Bella ◽  
Andrea Manglaviti
Keyword(s):  
Oxidation Stability ◽  
High Viscosity ◽  
High Oxidation

Fully embedded CuNWs/PDMS conductor with high oxidation resistance and high conductivity for stretchable electronics

2019 ◽  
Vol 54 (8) ◽  
pp. 6381-6392 ◽  
Author(s):  
Bowen Zhang ◽  
Wanli Li ◽  
Yang Yang ◽  
Chuantong Chen ◽  
Cai-Fu Li ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
High Conductivity ◽  
Stretchable Electronics ◽  
High Oxidation ◽  
High Oxidation Resistance

Analytical Solution of Unsteady Heat Diffusion within a Porous Copper Layer Deposited on Alumina Substrate and Subjected to a Moving Laser Beam

2008 ◽  
Vol 273-276 ◽  
pp. 52-57 ◽  
Author(s):  
Hamid Belghazi ◽  
Mohammed El Ganaoui ◽  
J.C. Labbe
Keyword(s):  
Laser Beam ◽  
Thermal Contact ◽  
Transient Heat Conduction ◽  
Heat Diffusion ◽  
Easy Access ◽  
Gaussian Laser Beam ◽  
Treatment Area ◽  
Porous Copper ◽  
The One ◽  
Deposit Layer

An analytical approach of transient heat conduction in a two layered material, in finite dimensions within imperfect thermal contact, subjected to a moving Gaussian laser beam was achieved. The result of this study allows on the one hand an easy access to the distribution and the evolution of the temperature in both layers of the workpiece; on the other hand permits to clarify the influence of the contact quality on the temperature gap at the interface. The effect of a porous grannular deposit layer was also considered in this study. A design of electronic tracks by laser cladding was studied as an application example in the surface treatment area; this model can be also used to estimate the thermal contact resistance between layers.

Low-emission Fuel with High Biogenic Content and High Oxidation Stability

MTZ worldwide ◽  
2019 ◽  
Vol 80 (10) ◽  
pp. 70-75
Author(s):  
Ferdinand Bär ◽  
Olaf Schröder ◽  
Jürgen Krahl
Keyword(s):  
Oxidation Stability ◽  
Low Emission ◽  
High Oxidation
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