Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices
Abstract
Electrodeposition of copper from acid sulfate solutions at overpotentials on the plateau of the limiting diffusion current density and at higher overpotentials was examined. The average current efficiencies for hydrogen evolution reaction are determined by a measurement of the quantity of evolved hydrogen and the overall electrodeposition current as a function of electrodeposition time, while morphologies of copper deposits are examined by the use of the scanning electron microscopy (SEM) technique. It is found that the open and porous structures of copper deposits (denoted and as honeycomb - like copper structures), suitable for electrodes in electrochemical devices such as fuel cells and chemical sensors, were reached by electrodeposition processes from solutions with the lower concentrations of Cu (II) ions (0.15 M CuSO 4 and less in 0.50 M H2SO4) at overpotentials outside the plateau of the limiting diffusion current density at which the quantity of evolved hydrogen was enough to c...hange hydrodynamic conditions in the near - electrode layer. The main characteristics of these copper structures were craters or holes formed primarily due to the attachment hydrogen bubbles with agglomerates of copper grains between them.
Keywords:
Copper / Electrodeposition / Hydrogen evolution / Scanning electron microscope (SEM) / SensorsSource:
Sensors, 2007, 7, 1, 1-15Publisher:
- MDPI
Funding / projects:
- Deposition of ultrafinepowders of metals and alloys and nanostructured surfaces by electrochemical techniques (RS-MESTD-MPN2006-2010-142032)
DOI: 10.3390/s7010001
ISSN: 1424-3210
WoS: 000244634400001
Scopus: 2-s2.0-33947408137
Collections
Institution/Community
IHTMTY - JOUR AU - Nikolić, Nebojša D. AU - Popov, Konstantin I. AU - Pavlovic, L.J. AU - Pavlović, Miomir PY - 2007 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/370 AB - Electrodeposition of copper from acid sulfate solutions at overpotentials on the plateau of the limiting diffusion current density and at higher overpotentials was examined. The average current efficiencies for hydrogen evolution reaction are determined by a measurement of the quantity of evolved hydrogen and the overall electrodeposition current as a function of electrodeposition time, while morphologies of copper deposits are examined by the use of the scanning electron microscopy (SEM) technique. It is found that the open and porous structures of copper deposits (denoted and as honeycomb - like copper structures), suitable for electrodes in electrochemical devices such as fuel cells and chemical sensors, were reached by electrodeposition processes from solutions with the lower concentrations of Cu (II) ions (0.15 M CuSO 4 and less in 0.50 M H2SO4) at overpotentials outside the plateau of the limiting diffusion current density at which the quantity of evolved hydrogen was enough to change hydrodynamic conditions in the near - electrode layer. The main characteristics of these copper structures were craters or holes formed primarily due to the attachment hydrogen bubbles with agglomerates of copper grains between them. PB - MDPI T2 - Sensors T1 - Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices VL - 7 IS - 1 SP - 1 EP - 15 DO - 10.3390/s7010001 ER -
@article{ author = "Nikolić, Nebojša D. and Popov, Konstantin I. and Pavlovic, L.J. and Pavlović, Miomir", year = "2007", abstract = "Electrodeposition of copper from acid sulfate solutions at overpotentials on the plateau of the limiting diffusion current density and at higher overpotentials was examined. The average current efficiencies for hydrogen evolution reaction are determined by a measurement of the quantity of evolved hydrogen and the overall electrodeposition current as a function of electrodeposition time, while morphologies of copper deposits are examined by the use of the scanning electron microscopy (SEM) technique. It is found that the open and porous structures of copper deposits (denoted and as honeycomb - like copper structures), suitable for electrodes in electrochemical devices such as fuel cells and chemical sensors, were reached by electrodeposition processes from solutions with the lower concentrations of Cu (II) ions (0.15 M CuSO 4 and less in 0.50 M H2SO4) at overpotentials outside the plateau of the limiting diffusion current density at which the quantity of evolved hydrogen was enough to change hydrodynamic conditions in the near - electrode layer. The main characteristics of these copper structures were craters or holes formed primarily due to the attachment hydrogen bubbles with agglomerates of copper grains between them.", publisher = "MDPI", journal = "Sensors", title = "Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices", volume = "7", number = "1", pages = "1-15", doi = "10.3390/s7010001" }
Nikolić, N. D., Popov, K. I., Pavlovic, L.J.,& Pavlović, M.. (2007). Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices. in Sensors MDPI., 7(1), 1-15. https://doi.org/10.3390/s7010001
Nikolić ND, Popov KI, Pavlovic L, Pavlović M. Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices. in Sensors. 2007;7(1):1-15. doi:10.3390/s7010001 .
Nikolić, Nebojša D., Popov, Konstantin I., Pavlovic, L.J., Pavlović, Miomir, "Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices" in Sensors, 7, no. 1 (2007):1-15, https://doi.org/10.3390/s7010001 . .