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Titolo:
Hydrogenation equilibria characteristics of LaNi5-xZnx intermetallics
Autore:
Rozdzynska-Kielbik, B; Iwasieczko, W; Drulis, H; Pavlyuk, VV; Bala, H;
Indirizzi:
Pedagog Univ Czestochowa, Inst Chem, PL-42200 Czestochowa, Poland Pedagog Univ Czestochowa Czestochowa Poland PL-42200 Czestochowa, Poland Pedagog Univ Czestochowa, Dept Chem, PL-42200 Czestochowa, Poland Pedagog Univ Czestochowa Czestochowa Poland PL-42200 Czestochowa, Poland Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland Polish Acad Sci Wroclaw Poland PL-50950 ct Res, PL-50950 Wroclaw, Poland
Titolo Testata:
JOURNAL OF ALLOYS AND COMPOUNDS
fascicolo: 1-2, volume: 298, anno: 2000,
pagine: 237 - 243
SICI:
0925-8388(20000228)298:1-2<237:HECOLI>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
LANI4.5AL0.5; ABSORPTION; SYSTEMS;
Keywords:
hydrogen storage alloys; LaNi5-xZnx system; crystal structure; P-C isotherms; H-2 desorption enthalpy; H-2 desorption entropy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Bala, H Pedagog Univ Czestochowa, Inst Chem, Al Armii Krajowej 13-15, PL-42200 Czestochowa, Poland Pedagog Univ Czestochowa Al Armii Krajowej 13-15 Czestochowa Poland PL-42200
Citazione:
B. Rozdzynska-Kielbik et al., "Hydrogenation equilibria characteristics of LaNi5-xZnx intermetallics", J ALLOY COM, 298(1-2), 2000, pp. 237-243

Abstract

A series of metal hydride alloys were prepared based on the LaNi5 formula,by substituting 0, 5, 10, 15 and 20 at.% of Zn for Ni. The obtained pseudobinary LaNi5-xZnx alloys have been characterized by X-ray diffraction patterns and hydrogen pressure-composition-temperature (PCT) diagrams at temperatures ranging from 293 to 353 K. The P-C isotherms were used to determine thermodynamic functions (enthalpy and entropy) for the hydrogen desorption process. Increasing Zn substitution causes the unit cell volume to increase and the plateau pressures to decrease. The maximum concentration of hydrogen in the tested La(Ni,Zn)(5) alloys slightly decreases with increasing Zn content. (C) 2000 Published by Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 18:05:24