Oxygen reduction in alkaline medium at thin MnxCo3−xO4 (0≤x≤1) spinel films prepared by spray pyrolysis. Effect of oxide cation composition on the reaction kinetics

Restovic, A.; Rı́os, E.; Barbato, S.; Ortiz, J.; Gautier, J.L.

doi:10.1016/s0022-0728(02)00639-3

Cited by 118 publications

(64 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…18-0408) phases at room temperature. MnCo 2 O 4 is a normal cubic spinel with Mn occupying octahedral interstitial sites and Co at [15,32,33]. This observation is consistent with earlier work by Naka et al [34] showing the co-existence of the cubic-and the tetragonal-spinel for Mn 1þd Co 2Àd O 4 with 0.3 d 0.9.…”

Section: Powder Characteristicssupporting

confidence: 91%

Synthesis and characterization of the manganese cobaltite spinel prepared using two “soft chemical” methods

Brylewski

Kruk

Adamczyk

et al. 2012

Materials Chemistry and Physics

View full text Add to dashboard Cite

Section: Powder Characteristicssupporting

confidence: 91%

Synthesis and characterization of the manganese cobaltite spinel prepared using two “soft chemical” methods

Brylewski

Kruk

Adamczyk

et al. 2012

Materials Chemistry and Physics

View full text Add to dashboard Cite

“…where R is electrical resistance [18,27,28]. Since cobalt and manganese cannot be distinguished using X-rays, refinements were made with 50 % of Co and Mn at each crystallographic site.…”

Section: Methods Of Sample Characterizationmentioning

confidence: 99%

Mn–Co spinel protective–conductive coating on AL453 ferritic stainless steel for IT-SOFC interconnect applications

Kruk

Stygar

Brylewski

2012

J Solid State Electrochem

View full text Add to dashboard Cite

This paper presents research on the synthesis and properties of the Mn 1.5 Co 1.5 O 4 (MC) spinel powder, as well as its application for the preparation of a MC thick film on the AL453 steel to be used for metallic interconnect material in IT-SOFCs. In order to prepare the MC micropowder with excellent homogeneity of the chemical and phase compositions, EDTA gel processes were utilized. In order to improve the contact electrical resistance between an AL453 steel interconnect and the La 0.8 Sr 0.2 FeO 3 (LSF) cathode and protect the cathode from Cr poisoning, the surface of the AL453 steel was coated with a protective manganese cobaltite spinel matrix using screen printing in combination with an appropriate heat treatment. The oxidation of the AL453/MC composite layer carried out in the air-H 2 O gas mixture at 1,073 K for 55 h showed that the spinel coating may serve as an effective barrier against outward Cr diffusion from the AL453 steel and, therefore, significantly inhibit the formation of volatile Cr vapors from the chromia scale. The contact ASR study of the interconnect-cathode interface in the AL453/MC/LSCM/LSF/LSCM/MC/AL453 system carried out in the range of 723−1,073 K in air showed a very large drop in ASR compared to the resistance of the AL453/LSCM/LSF/LSCM/AL453 system without the spinel coating.

show abstract

“…It is obvious that the electrochemical reduction of O 2 plays an important role in electrochemistry and electroanalysis, such as in fuel cells, biosensors and metal-air batteries [1][2][3][4][5]. In many aqueous and non-aqueous solvents, the reduction of O 2 is very intricate; hence reactions of protonation and disproportionation of intermediate species cannot be avoided [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Generation and stability of superoxide ion in tris(pentafluoroethyl)trifluorophosphate anion-based ionic liquids

Hayyan

Mjalli

AlNashef

et al. 2012

Journal of Fluorine Chemistry

View full text Add to dashboard Cite

Oxygen reduction in alkaline medium at thin MnxCo3−xO4 (0≤x≤1) spinel films prepared by spray pyrolysis. Effect of oxide cation composition on the reaction kinetics

Cited by 118 publications

References 29 publications

Synthesis and characterization of the manganese cobaltite spinel prepared using two “soft chemical” methods

Synthesis and characterization of the manganese cobaltite spinel prepared using two “soft chemical” methods

Mn–Co spinel protective–conductive coating on AL453 ferritic stainless steel for IT-SOFC interconnect applications

Generation and stability of superoxide ion in tris(pentafluoroethyl)trifluorophosphate anion-based ionic liquids

Contact Info

Product

Resources

About