Electrosorption of hydrogen and sulfuric acid anions on single crystal platinum stepped surfaces. Part II. The [110] zone
Abstract
Hydrogen and bisulphate adsorption at platinum single crystal surfaces from the [ITO] zone is
strongly dependent on the crystallographic orientation of the electrode surface, which is similar to that
found earlier for the [llO] zone. For the purposes of comparison, some experiments were performed with
non-adsorbing perchlorate acid solutions. The multiple states of hydrogen adsorption can be correlated
with symmetry of surface sites and the nature of the adsorbed oxi-anions. All stepped surfaces
investigated from this zone have one sharp peak at -0.175 V which is due to a coupled desorption of
bisulphate and hydrogen adsorption from the sites with the (110) symmetry. The surfaces of the
n(llO)-(lll) type behave as the surfaces denoted (n -1X110)-3(111) since the three atom long terrace is
“seen” by bisulphate and hydrogen.
Bisulphate anions are more strongly adsorbed at the steps than at the (111) oriented terraces, The
latter process occurs at more positive potentials than t...he adsorption at steps and it is affected by anions
at the step sites. The structure in the electrolyte solutions has been discussed.
Keywords:
Hydrogen / bisulphate / electrode surface / Electrochemistry / Hydrogen adsorption / electrolyte solutionSource:
Journal of Electroanalytical Chemistry, 1991, 314, 1-2, 289-306Publisher:
- Elsevier
Funding / projects:
- Yugoslav- American Fund, Contract No. 753
DOI: 10.1016/0022-0728(91)85443-S
ISSN: 0022-0728; 1572-6657
Scopus: 2-s2.0-44349118339
Collections
Institution/Community
IHTMTY - JOUR AU - Marković, Nenad M. AU - Marinković, N. S. AU - Adžić, Radoslav PY - 1991 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4166 AB - Hydrogen and bisulphate adsorption at platinum single crystal surfaces from the [ITO] zone is strongly dependent on the crystallographic orientation of the electrode surface, which is similar to that found earlier for the [llO] zone. For the purposes of comparison, some experiments were performed with non-adsorbing perchlorate acid solutions. The multiple states of hydrogen adsorption can be correlated with symmetry of surface sites and the nature of the adsorbed oxi-anions. All stepped surfaces investigated from this zone have one sharp peak at -0.175 V which is due to a coupled desorption of bisulphate and hydrogen adsorption from the sites with the (110) symmetry. The surfaces of the n(llO)-(lll) type behave as the surfaces denoted (n -1X110)-3(111) since the three atom long terrace is “seen” by bisulphate and hydrogen. Bisulphate anions are more strongly adsorbed at the steps than at the (111) oriented terraces, The latter process occurs at more positive potentials than the adsorption at steps and it is affected by anions at the step sites. The structure in the electrolyte solutions has been discussed. PB - Elsevier T2 - Journal of Electroanalytical Chemistry T1 - Electrosorption of hydrogen and sulfuric acid anions on single crystal platinum stepped surfaces. Part II. The [110] zone VL - 314 IS - 1-2 SP - 289 EP - 306 DO - 10.1016/0022-0728(91)85443-S ER -
@article{ author = "Marković, Nenad M. and Marinković, N. S. and Adžić, Radoslav", year = "1991", abstract = "Hydrogen and bisulphate adsorption at platinum single crystal surfaces from the [ITO] zone is strongly dependent on the crystallographic orientation of the electrode surface, which is similar to that found earlier for the [llO] zone. For the purposes of comparison, some experiments were performed with non-adsorbing perchlorate acid solutions. The multiple states of hydrogen adsorption can be correlated with symmetry of surface sites and the nature of the adsorbed oxi-anions. All stepped surfaces investigated from this zone have one sharp peak at -0.175 V which is due to a coupled desorption of bisulphate and hydrogen adsorption from the sites with the (110) symmetry. The surfaces of the n(llO)-(lll) type behave as the surfaces denoted (n -1X110)-3(111) since the three atom long terrace is “seen” by bisulphate and hydrogen. Bisulphate anions are more strongly adsorbed at the steps than at the (111) oriented terraces, The latter process occurs at more positive potentials than the adsorption at steps and it is affected by anions at the step sites. The structure in the electrolyte solutions has been discussed.", publisher = "Elsevier", journal = "Journal of Electroanalytical Chemistry", title = "Electrosorption of hydrogen and sulfuric acid anions on single crystal platinum stepped surfaces. Part II. The [110] zone", volume = "314", number = "1-2", pages = "289-306", doi = "10.1016/0022-0728(91)85443-S" }
Marković, N. M., Marinković, N. S.,& Adžić, R.. (1991). Electrosorption of hydrogen and sulfuric acid anions on single crystal platinum stepped surfaces. Part II. The [110] zone. in Journal of Electroanalytical Chemistry Elsevier., 314(1-2), 289-306. https://doi.org/10.1016/0022-0728(91)85443-S
Marković NM, Marinković NS, Adžić R. Electrosorption of hydrogen and sulfuric acid anions on single crystal platinum stepped surfaces. Part II. The [110] zone. in Journal of Electroanalytical Chemistry. 1991;314(1-2):289-306. doi:10.1016/0022-0728(91)85443-S .
Marković, Nenad M., Marinković, N. S., Adžić, Radoslav, "Electrosorption of hydrogen and sulfuric acid anions on single crystal platinum stepped surfaces. Part II. The [110] zone" in Journal of Electroanalytical Chemistry, 314, no. 1-2 (1991):289-306, https://doi.org/10.1016/0022-0728(91)85443-S . .