A Photoelectrochemical Investigation of Zirconium oxide film

Authors

Maizhi Yang, Department of Chemistry, Beijing University, Beijing,100871)Di Quarto F. Piazza S. Sunseri C. (Dipartimento di Ingegneria Chimica dei Processi e dei Materiali,Universita di Palermo, Viale delle Scienze, 90128 Patermo,Itaty)Wei Ping(Departemen;

Abstract

A photoelectrochemical investigation has been carried out on zirconium initialoxide film and its oxide film grownanodically at constant rate up to different thickness. Both anodicand cathedic photocurrents on the photocurrent spectrum depended on the potential,but had littlerelation with the forming anedic films or measuring solutions. Photocurrent spectrum and photocurrenttransients suggested that the oxide films on zirconium were duplex layers structure. The internal layerwas ZrO_2 and the external layer ZrO_2·(H_2O)_n. The photocurrent included photogenerated carrier ininternal and external oxide films,as well as internal photoinjection process for electrons from thesubstrate metal into the electrode/electolyte interface reacting with the redox couple. The analysis ofphotocurrent spectra has given the threshold energies for three processes.

Keywords

Photoelecrochemistry, Zirconium, photocurrent, Oxide film

DOI Link

https://doi.org/10.61558/2993-074X.1260

Publication Date

1995-02-28

Online Available Date

1995-02-28

Revised Date

1995-02-28

Received Date

1995-02-28

Recommended Citation

Maizhi Yang. A Photoelectrochemical Investigation of Zirconium oxide film[J]. Journal of Electrochemistry, 1995 , 1(1): 30-37.
DOI: 10.61558/2993-074X.1260
Available at: https://jelectrochem.xmu.edu.cn/journal/vol1/iss1/5

References

1StimmingU．Photoelectrochemicalstudiesofpassivefilms．Electrochim．Acta，1986，31：4152VijhAK．Influenceofsolide－statecohesionofmetalsonthepittingpotentials．Corros．Sci．，1972，12：1053SatoN．Anedicbreakdownofpassivefilmsonmetals．J．Electrochem．Soc．，1982，129（2）：2554BurleighTD．Anodicphotocurrentsandcorrosioncurrentsonpassiveandactive－passivemetals．Corrosion，1989，45：6，4655PiazzaS，SunseriC，DiQuartoF．Investigationofamorphousoxidefilm－electrolytejunctionsbyACtechniques．AICHEJournal，1992，38，2196DiQuartoF，GentileC，PiazzaSetal．Photoelectrochemicalstudyonanedicaluminumoxidefilms．J．Electrochem．Soc．，1991，138：6，18567MeisterjahnP，HoppeHW，SchultzeJW．ElectrochemicalandXPSmeasurementsonthinoxidefilmsonzirconium．J．Electroanal．Chem．，1987，217：1598VijhAK．Anodicoxidefimls．Influenceofsolide－statepropertiesonelectrochemiealbehavior．OxidesandOxideFilms，DiggleJW．Ed．，N．Y．：DekkerM．Inc，1973，2