Boosting the oxygen evolution activity of copper foam containing …
Dec 20, 2020 · We found that the commercially procured Cu foam containing trace amount of Ni (~1.5 wt.%) upon anodization formed Cu (OH) 2 CuO nanowires with conceivable formation of Ni (OH) 2 and experienced a notable enhancement in its OER activity.
Metal Foam Electrode as a Cathode for Copper Electrowinning
Aug 25, 2020 · The specific electrochemically active area of Cu foam was estimated from EIS data, and based on the values of the double electric layer, it was determined to be 7–14 times higher than that for the plate electrode.
Free-standing CuO nanoflake arrays coated Cu foam for …
Nov 30, 2016 · We fabricate CuO nanoflakes coated Cu foam by in situ electrochemical oxidation. The CuO electrodes deliver stable reversible capacities at high current densities. The CuO electrodes exhibit a long cycle life of up to 400 cycles at 2.0 A g −1. In situ Raman measurement confirms the conversion mechanism for CuO electrodes.
Synthesis of nanoporous copper foam-applied current ... - Springer
Oct 13, 2018 · EIS results showed that thin copper foams deposited from 0.4 M CuSO4 and 0.1 M CH3COOH, at 3 A/cm2 for 20 s present the highest specific capacitance that was 102.68 F/g. GCD data for the same foam showed a capacitance of 95 F/g at 1 mA/cm2.
Copper foam-derived electrodes as efficient electrocatalysts for ...
May 1, 2022 · A Cu 1+ /Cu 2+ redox-coupled hydrogen production system could be potentially designed with the assistance of glucose in the system as a reducible sacrificial agent. In situ Raman, operando EIS, and DFT calculations provided strong evidence of the glucose-assisted Cu 1+ /Cu 2+ redox.
Synergy of Cu-foam/Sb - RSC Publishing
In this paper, a multifunctional interface containing Sb 2 O 3 and reduced graphene oxide (rGO) on Cu foam to form a current collector (Cu@Sb 2 O 3 @rGO) is developed for a KMB anode through structural regulation, where the Cu form with a large surface area can reduce the volume change during charge and discharge processes, Sb 2 O 3 can provide ...
EIS parameters obtained for plain Cu and Cu foam using …
The results obtained demonstrate that the values of R ct of the investigated samples were in the range of 20-23 kΩ for a plain Cu electrode and within 470-600 Ω for a Cu 3D electrode. ...
Insights into the Electrochemical Synthesis and Supercapacitive ...
2 days ago · The capacitive properties of the synthesized films were evaluated using CV in the potential range of 0 V–0.65 V, and the optimized CuO film synthesized on Cu foam exhibited a high specific capacitance of 1380 mF cm⁻2. An energy density of 0.061 mWh cm−2 and power density of 1.28 mW cm−2 were obtained at 10 mA cm−2 discharge current.
In situ synthesize Bi nanostructures on copper foam toward …
Oct 7, 2022 · We propose that the unique porous morphology and specific surface morphology of the Bi/Cu foam catalyst are beneficial to the in situ generation of Hydrogen intermediates, which might play a significant role in enhancing the H2 electrocatalysis performance.
CuSnBi Catalyst Grown on Copper Foam by Co-Electrodeposition …
Mar 11, 2024 · Herein, we provided a co-electrodeposition method to grow CuSnBi catalysts on pretreated copper foam and discussed the effects of both pH value and molar ratio of metal ions (Cu2+, Sn2+, and Bi3+) in the electrodeposition solution on the electrocatalytic performance of CO2 to HCOO−.