Cerium molybdate nanowires for active corrosion protection of aluminium alloys

被引：43

作者：

Yasakau, K. A. ^{[1
]}

Tedim, J. ^{[1
]}

Zheludkevich, M. L. ^{[1
]}

Drumm, R. ^{[2
]}

Shem, M. ^{[2
]}

Wittmar, M. ^{[2
]}

Veith, M. ^{[2
]}

Ferreira, M. G. S. ^{[1
]}

机构：

[1] Univ Aveiro, Dept Ceram & Glass Engn, CICECO, P-3810193 Aveiro, Portugal

[2] Leibniz Inst New Mat, INM, D-66123 Saarbrucken, Germany

来源：

CORROSION SCIENCE | 2012年 / 58卷

关键词：

Aluminium; Intermetallics; EIS; SEM; Polarization; AA2024-T3; INHIBITION; COATINGS; SPECTROSCOPY; PHOSPHATE; CHROMATE; PIGMENTS; COBALT;

D O I：

10.1016/j.corsci.2012.01.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper the inhibitive performance of cerium molybdate nanowires prepared by a novel methodology is reported. The methodology is based on a low-temperature, controlled-rate mixing process. Structurally, cerium molybdate nanowires were found to be amorphous-like materials whose inhibiting action towards aluminium alloy 2024-T3 was demonstrated by DC polarization and electrochemical impedance spectroscopy (EIS), corroborated by microstructural surface analysis of the metallic substrate. The observed inhibiting action is attributed to the higher solubility of the cerium molybdate nanomaterials with respect to crystalline sodium cerium molybdate obtained at room temperature. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：41 / 51

页数：11

共 27 条

[1] Studies of the formation of cerium-rich protective films using x-ray absorption near-edge spectroscopy and rotating disk electrode methods [J].

Aldykiewicz, AJ ;

Davenport, AJ ;

Isaacs, HS .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (01) :147-154

[2] Lanthanide compounds as environmentally-friendly corrosion inhibitors of aluminium alloys:: A review [J].

Bethencourt, M ;

Botana, FJ ;

Calvino, JJ ;

Marcos, M ;

Rodríguez-Chacón, MA .

CORROSION SCIENCE, 1998, 40 (11) :1803-1819

[3] Inhibition of AA2024-T3 on a phase-by-phase basis using an environmentally benign inhibitor, cerium dibutyl phosphate [J].

Birbilis, N ;

Buchheit, RG ;

Ho, DL ;

Forsyth, M .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2005, 8 (11) :C180-C183

[4] STUDIES ON THE PASSIVATION OF ALUMINUM IN CHROMATE AND MOLYBDATE SOLUTIONS [J].

BRESLIN, CB ;

TREACY, G ;

CARROLL, WM .

CORROSION SCIENCE, 1994, 36 (07) :1143-1154

[5] Inhibition of corrosion on AA2024-T3 by new environmentally friendly rare earth organophosphate compounds [J].

Forsyth, M. ;

Markley, T. ;

Ho, D. ;

Deacon, G. B. ;

Junk, P. ;

Hinton, B. ;

Hughes, A. .

CORROSION, 2008, 64 (03) :191-197

[6] Cerium dibutylphosphate as a corrosion inhibitor for AA2024-T3 aluminum alloys [J].

Ho, Daniel ;

Brack, Narelle ;

Scully, John ;

Markley, Tracey ;

Forsyth, Maria ;

Hinton, Bruce .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (09) :B392-B401

[7] Control of thickness and orientation of solution-grown silicon nanowires [J].

Holmes, JD ;

Johnston, KP ;

Doty, RC ;

Korgel, BA .

SCIENCE, 2000, 287 (5457) :1471-1473

[8] Effect of molybdate, cerium, and cobalt ions on the oxygen reduction reaction on AA2024-T3 and selected intermetallics [J].

Jakab, M. A. ;

Presuel-Moreno, F. ;

Scully, J. R. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (07) :B244-B252

[9] Critical concentrations associated with cobalt, cerium, and molybdenum inhibition of AA2024-T3 corrosion: Delivery from Al-Co-Ce(-Mo) alloys [J].

Jakab, MA ;

Presuel-Moreno, F ;

Scully, JR .

CORROSION, 2005, 61 (03) :246-263

[10] Catalytic properties of ultrafine molybdenum-cerium oxide particles prepared by the sol-gel method [J].

Kuang, WX ;

Fan, YN ;

Chen, Y .

CATALYSIS LETTERS, 1998, 50 (1-2) :31-35

← 1 2 3 →