Hydrogen adsorption on single-crystal platinum electrodes in alkaline solutions
Abstract
Hydrogen adsorption on single-crystal platinum low-index and stepped surfaces was studied in 0.1 M and 0.01 M NaOH solutions. A strong dependence on the crystallographic orientation of the electrode surface was found. The multiple states of hydrogen were correlated with the symmetry of surface sites. The data for the stepped surfaces were found to be useful in explaining the nature of processes occurring on the low index surfaces. Several strong indications were found for the nature of the so-called "butterfly" peak, indicating that it is due to adsorption of the hydroxil species rather than to hydrogen adsorption. Indications for hydrogen adsorption on Pt(111) in the H2 evolution region was found by impedance measurements. An effort was made to identify the multiple adsorption states for Pt(100). Hydrogen adsorption on the step sites for surfaces from all three crystallographic zones was identified and found to be proportional to the step density. A comparison with hydrogen adsorption... in acid solutions was made for some surfaces.
Keywords:
Hydrogen adsorption / electrode / Pt(111) / Pt(100)Source:
Journal of Electroanalytical Chemistry, 1992, 330, 1-2, 433-452Publisher:
- Elsevier
Funding / projects:
- Yugoslav-American Fund, Contract No . 996
Collections
Institution/Community
IHTMTY - JOUR AU - Marinković, N. S. AU - Marković, N.M. AU - Adžić, Radoslav R. PY - 1992 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4145 AB - Hydrogen adsorption on single-crystal platinum low-index and stepped surfaces was studied in 0.1 M and 0.01 M NaOH solutions. A strong dependence on the crystallographic orientation of the electrode surface was found. The multiple states of hydrogen were correlated with the symmetry of surface sites. The data for the stepped surfaces were found to be useful in explaining the nature of processes occurring on the low index surfaces. Several strong indications were found for the nature of the so-called "butterfly" peak, indicating that it is due to adsorption of the hydroxil species rather than to hydrogen adsorption. Indications for hydrogen adsorption on Pt(111) in the H2 evolution region was found by impedance measurements. An effort was made to identify the multiple adsorption states for Pt(100). Hydrogen adsorption on the step sites for surfaces from all three crystallographic zones was identified and found to be proportional to the step density. A comparison with hydrogen adsorption in acid solutions was made for some surfaces. PB - Elsevier T2 - Journal of Electroanalytical Chemistry T1 - Hydrogen adsorption on single-crystal platinum electrodes in alkaline solutions VL - 330 IS - 1-2 SP - 433 EP - 452 DO - 10.1016/0022-0728(92)80323-V ER -
@article{ author = "Marinković, N. S. and Marković, N.M. and Adžić, Radoslav R.", year = "1992", abstract = "Hydrogen adsorption on single-crystal platinum low-index and stepped surfaces was studied in 0.1 M and 0.01 M NaOH solutions. A strong dependence on the crystallographic orientation of the electrode surface was found. The multiple states of hydrogen were correlated with the symmetry of surface sites. The data for the stepped surfaces were found to be useful in explaining the nature of processes occurring on the low index surfaces. Several strong indications were found for the nature of the so-called "butterfly" peak, indicating that it is due to adsorption of the hydroxil species rather than to hydrogen adsorption. Indications for hydrogen adsorption on Pt(111) in the H2 evolution region was found by impedance measurements. An effort was made to identify the multiple adsorption states for Pt(100). Hydrogen adsorption on the step sites for surfaces from all three crystallographic zones was identified and found to be proportional to the step density. A comparison with hydrogen adsorption in acid solutions was made for some surfaces.", publisher = "Elsevier", journal = "Journal of Electroanalytical Chemistry", title = "Hydrogen adsorption on single-crystal platinum electrodes in alkaline solutions", volume = "330", number = "1-2", pages = "433-452", doi = "10.1016/0022-0728(92)80323-V" }
Marinković, N. S., Marković, N.M.,& Adžić, R. R.. (1992). Hydrogen adsorption on single-crystal platinum electrodes in alkaline solutions. in Journal of Electroanalytical Chemistry Elsevier., 330(1-2), 433-452. https://doi.org/10.1016/0022-0728(92)80323-V
Marinković NS, Marković N, Adžić RR. Hydrogen adsorption on single-crystal platinum electrodes in alkaline solutions. in Journal of Electroanalytical Chemistry. 1992;330(1-2):433-452. doi:10.1016/0022-0728(92)80323-V .
Marinković, N. S., Marković, N.M., Adžić, Radoslav R., "Hydrogen adsorption on single-crystal platinum electrodes in alkaline solutions" in Journal of Electroanalytical Chemistry, 330, no. 1-2 (1992):433-452, https://doi.org/10.1016/0022-0728(92)80323-V . .