Glassy carbon electrodes: II. Modification by immersion in AgNO 3
Samo za registrovane korisnike
2001
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The modification of glassy carbon by immersion in AgNO 3 solution was studied by cyclic voltammetry, vacuum techniques (AES and XPS) and STM. The influence of Ag + concentration, time of immersion, the presence of oxygen in AgNO 3 solution and previous thermal treatment of the glassy carbon were examined on 'as received' (untreated), polished and electrochemically treated samples. The results show that glassy carbon electrode immersed in AgNO 3 solution is modified by silver, which is deposited in its elemental state on the surface and near surface layers of the material. Cyclic voltammograms of silver-modified glassy carbon electrodes are similar to those of a silver electrode. The quantity of silver deposited on glassy carbon strongly depends on the pretreatment of the material before its immersion. The results obtained suggest that functional groups participate in the reduction of Ag + , and thus in the electrode modification, as active centers. Metal particles are not uniformly dep...osited on the surface and the deposition is 3-dimensional with deposits of laminar structure. A mechanism for the modification process is proposed.
Ključne reči:
Cyclic voltammetry / Auger electron spectroscopy / Carbon / Chemical modification / Chemical polishing / Electrochemical electrodes / Functional groups / Glassy carbon electrodes / Impregnation / Scanning tunneling microscopy (STM) / Silver compounds / X-ray photoelectron spectroscopy (XPS)Izvor:
Carbon, 2001, 39, 8, 1207-1216Izdavač:
- Elsevier
Finansiranje / projekti:
- Ministry of Science and Technology of the Republic of Serbia
Institucija/grupa
IHTMTY - JOUR AU - Dekanski, Aleksandar AU - Stevanović, Jasmina S. AU - Stevanović, Rade M. AU - Jovanović, Vladislava M. PY - 2001 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3660 AB - The modification of glassy carbon by immersion in AgNO 3 solution was studied by cyclic voltammetry, vacuum techniques (AES and XPS) and STM. The influence of Ag + concentration, time of immersion, the presence of oxygen in AgNO 3 solution and previous thermal treatment of the glassy carbon were examined on 'as received' (untreated), polished and electrochemically treated samples. The results show that glassy carbon electrode immersed in AgNO 3 solution is modified by silver, which is deposited in its elemental state on the surface and near surface layers of the material. Cyclic voltammograms of silver-modified glassy carbon electrodes are similar to those of a silver electrode. The quantity of silver deposited on glassy carbon strongly depends on the pretreatment of the material before its immersion. The results obtained suggest that functional groups participate in the reduction of Ag + , and thus in the electrode modification, as active centers. Metal particles are not uniformly deposited on the surface and the deposition is 3-dimensional with deposits of laminar structure. A mechanism for the modification process is proposed. PB - Elsevier T2 - Carbon T1 - Glassy carbon electrodes: II. Modification by immersion in AgNO 3 VL - 39 IS - 8 SP - 1207 EP - 1216 DO - 10.1016/S0008-6223(00)00227-X ER -
@article{ author = "Dekanski, Aleksandar and Stevanović, Jasmina S. and Stevanović, Rade M. and Jovanović, Vladislava M.", year = "2001", abstract = "The modification of glassy carbon by immersion in AgNO 3 solution was studied by cyclic voltammetry, vacuum techniques (AES and XPS) and STM. The influence of Ag + concentration, time of immersion, the presence of oxygen in AgNO 3 solution and previous thermal treatment of the glassy carbon were examined on 'as received' (untreated), polished and electrochemically treated samples. The results show that glassy carbon electrode immersed in AgNO 3 solution is modified by silver, which is deposited in its elemental state on the surface and near surface layers of the material. Cyclic voltammograms of silver-modified glassy carbon electrodes are similar to those of a silver electrode. The quantity of silver deposited on glassy carbon strongly depends on the pretreatment of the material before its immersion. The results obtained suggest that functional groups participate in the reduction of Ag + , and thus in the electrode modification, as active centers. Metal particles are not uniformly deposited on the surface and the deposition is 3-dimensional with deposits of laminar structure. A mechanism for the modification process is proposed.", publisher = "Elsevier", journal = "Carbon", title = "Glassy carbon electrodes: II. Modification by immersion in AgNO 3", volume = "39", number = "8", pages = "1207-1216", doi = "10.1016/S0008-6223(00)00227-X" }
Dekanski, A., Stevanović, J. S., Stevanović, R. M.,& Jovanović, V. M.. (2001). Glassy carbon electrodes: II. Modification by immersion in AgNO 3. in Carbon Elsevier., 39(8), 1207-1216. https://doi.org/10.1016/S0008-6223(00)00227-X
Dekanski A, Stevanović JS, Stevanović RM, Jovanović VM. Glassy carbon electrodes: II. Modification by immersion in AgNO 3. in Carbon. 2001;39(8):1207-1216. doi:10.1016/S0008-6223(00)00227-X .
Dekanski, Aleksandar, Stevanović, Jasmina S., Stevanović, Rade M., Jovanović, Vladislava M., "Glassy carbon electrodes: II. Modification by immersion in AgNO 3" in Carbon, 39, no. 8 (2001):1207-1216, https://doi.org/10.1016/S0008-6223(00)00227-X . .