X-ray diffraction and scanning electron microscopic characterization of electrolytically hydrogenated nickel and palladium

被引：9
作者：
Tavares, SSM
Miraglia, S
Fruchart, D
dos Santos, DS
机构：
[1] CNRS, Cristallog Lab, F-38042 Grenoble 9, France
[2] UFF, Dept Engn Mecan, BR-24210240 Niteroi, RJ, Brazil
[3] UFRJ, COPPE, Dept Met & Mat Engn, BR-21945970 Rio De Janeiro, Brazil
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 347卷 / 1-2期
关键词：
hydrogen absorbing materials; electrochemical reactions; X-ray diffraction; microstructure; SEM;
D O I：
10.1016/S0925-8388(02)00674-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of hydrogen insertion by electrolytic charging in H2SO4 solution in pure nickel and palladium were investigated. The hydrogenated phases of Ni and Pd and their stability during aging were determined by X-ray diffraction. The NiH0.68 hydride and the alpha-Ni phase. were distinguished by scanning electron microscopy (SEM) operating in the backscattered electrons mode. Interesting features about the intergranular cracks developed during and after charging are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：105 / 109
页数：5
相关论文
共 18 条
[1]   Influence of partial hydride formation decomposition on the mechanical properties of palladium [J].
Anderton, C ;
Strother, N ;
Pote, J ;
Foley, R ;
Rebeiz, K ;
Nesbit, S ;
Craft, A .
SCRIPTA MATERIALIA, 1996, 35 (08) :1013-1018
[2]  
[Anonymous], 1973, ASM METALS HDB, V08
[3]   INSITU OBSERVATION OF DISAPPEARANCE OF FERROMAGNETISM OF NICKEL UNDER HIGH-PRESSURE GASEOUS HYDROGEN [J].
BAUER, HJ .
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1977, 40 (01) :K35-K38
[4]   LATTICE-PARAMETER AND FE-57 ISOMER-SHIFT IN PDHX - EVIDENCE FOR 2 NEW PHASES [J].
BRAND, RA ;
GIBERT, HG ;
LELAURAIN, M .
JOURNAL OF PHYSICS F-METAL PHYSICS, 1980, 10 (10) :L257-L259
[5]   EFFECTIVE-MEDIUM CALCULATIONS FOR HYDROGEN IN NI, PD, AND PT [J].
CHRISTENSEN, OB ;
STOLTZE, P ;
JACOBSEN, KW ;
NORSKOV, JK .
PHYSICAL REVIEW B, 1990, 41 (18) :12413-12423
[6]   A high pressure investigation of Pd and the Pd-H system [J].
dos Santos, DS ;
Miraglia, S ;
Fruchart, D .
JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 291 (1-2) :L1-L5
[7]   FORMATION OF SUPERABUNDANT VACANCIES IN PD HYDRIDE UNDER HIGH HYDROGEN PRESSURES [J].
FUKAI, Y ;
OKUMA, N .
PHYSICAL REVIEW LETTERS, 1994, 73 (12) :1640-1643
[8]   MAGNETIC-PROPERTIES OF NICKEL HYDRIDE - A COMPARISON OF MAGNETIC-SUSCEPTIBILITY WITH BAND-STRUCTURE CALCULATIONS [J].
HANSON, M ;
BAUER, HJ .
JOURNAL OF ALLOYS AND COMPOUNDS, 1992, 179 :339-349
[9]  
KEPKA JB, 1979, PHYS REV B, V19
[10]   Stresses induced by hydrogen absorption and desorption in Pd nanofilms [J].
Liu, SY ;
Kao, YH ;
Su, YO ;
Perng, TP .
JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 316 (1-2) :280-283
12