Pregled bibliografske jedinice broj: 1064530
A study of the electrochemical reactivity of titanium under cathodic polarization by means of combined feedback and redox competition modes of scanning electrochemical microscopy
A study of the electrochemical reactivity of titanium under cathodic polarization by means of combined feedback and redox competition modes of scanning electrochemical microscopy // Sensors and actuators. B, Chemical, 320 (2020), 128339, 11 doi:10.1016/j.snb.2020.128339 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1064530 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
A study of the electrochemical reactivity of
titanium under cathodic polarization by means
of combined feedback and redox competition
modes of scanning electrochemical microscopy
Autori
Asserghine, Abdelilah ; Medvidović-Kosanović, Martina ; Nagy, Livia ; M. Souto, Ricardo ; Nagy, Geza
Izvornik
Sensors and actuators. B, Chemical (0925-4005) 320
(2020);
128339, 11
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Titanium biomaterial, thin titanium dioxide layers, cathodic polarization, corrosion resistance, SECM, electron transfer reaction
Sažetak
The effect of cathodic polarization on the electrochemical behavior of the thin titanium dioxide film formed by anodic pretreatment over pure commercial titanium metal for biomaterial application was investigated in situ using scanning electrochemical microscopy (SECM). Quantitative information on the electron transfer rates (keff) at the titanium surface was obtained using the feedback operation of SECM using ferrocene-methanol (FcMeOH) as electrochemical mediator. An increase of keff values with the increase of the negative polarization was detected, a feature that correlates well with the decrease of titanium oxide resistance with increasing cathodic polarization observed using electrochemical impedance spectroscopy (EIS). In addition, SECM operation in the redox competition mode proved that hydrogen was absorbed in the surface oxide film leading to changes in conductivity and electrochemical reactivity.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
Sveučilište u Osijeku - Odjel za kemiju
Profili:
Martina Medvidović Kosanović
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
