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Title
Solvent effect on synthesis of perovskite-type La1-xCaxCoO3 and their electrochemical properties for oxygen reactions
Author:
Kahoul, A; Hammouche, A; Naamoune, F; Chartier, P; Poillerat, G; Koenig, JF;
Addresses:
Univ F Abbas Setif, Inst Chim Ind, Lab Energet & Electrochim Solides, Setif 19000, Algeria Univ F Abbas Setif Setif Algeria 19000 him Solides, Setif 19000, Algeria Univ Strasbourg 1, CNRS, UMR 7512, Lab Electrochim & Chim Phys Corps Solide, F-67000 Strasbourg, France Univ Strasbourg 1 Strasbourg France F-67000, F-67000 Strasbourg, France
Heading Title:
MATERIALS RESEARCH BULLETIN
issue: 12, volume: 35, year: 2000,
pages: 1955 - 1966
SICI:
0025-5408(200009)35:12<1955:SEOSOP>2.0.ZU;2-U
Source:
ISI
Language:
ENG
Subject:
LARGE SURFACE-AREA; AMORPHOUS CITRATE PROCESS; ALKALINE-SOLUTIONS; OXIDE POWDERS; EVOLUTION; ELECTRODES; REDUCTION; ELECTROCATALYSIS; LA1-XSRXMNO3; COBALT;
Keywords:
oxides; sol-gel chemistry; electrochemical properties;
Document Type:
Article
Nature:
Serial
Edition:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citations:
27
Reviewed:
Addresses for extracts:
Address: Kahoul, A Univ F Abbas Setif, Inst Chim Ind, Lab Energet & Electrochim Solides, Setif 19000, Algeria Univ F Abbas Setif Setif Algeria 19000 s, Setif 19000, Algeria
Citation:
A. Kahoul and others, "Solvent effect on synthesis of perovskite-type La1-xCaxCoO3 and their electrochemical properties for oxygen reactions", MATER RES B, 35(12), 2000, pp. 1955-1966

Abstract

The object of the present investigation is to compare some physico-chemical properties of two La1-xCaxCoO3 series (0.0 less than or equal to x less than or equal to 0.6), prepared by the sol-gel route using either water or propanol as solvents. The synthesized oxide powders were characterized by X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), BET, and electrical conductivity measurements. The morphology of the powders was examinedusing scanning electron microscopy (SEM). The results revealed that the use of propanol led systematically to the formation of homogeneous oxides with a single perovskite-structure phase, larger surface area, and higher conductivity values compared with those prepared using water. Such features, which seem to be directly related to the properties of the solvent of the starting solution, are undoubtedly favorable for a higher electrocatalytic activity of these oxides in oxygen electrode reactions. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Bologna University, Review Catalogue
Document created on 19/08/19 at 22:59:25