Results 131 to 140 of about 9,384 (159)

The electrochemical charge-discharge properties of ZrCrNi hydrogen storage alloys

Journal of Alloys and Compounds, 1995
Abstract Zr(Cr x Ni 1− x ) 2 (0.15 ⩽ x ⩽ 0.65) alloys were prepared by arc melting in an argon atmosphere. Through X-ray diffraction, the main crystal structure of the alloys was found to change from Laves phase cubic C15 to hexagonal C14 as the Cr to Ni ratio increased, and lattice parameters and hydrogen absorption capacities were mainly ...
Lei Yongquan, Yang Xiaoguang, Wu Jing, Wang Qidong   +3 more
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A dilatometric study of nickel wire electrode electrochemically charged by hydrogen

Journal of Alloys and Compounds, 1996
Abstract The cathodic charging of nickel with hydrogen was studied with simultaneous measurements of dimensional variations within the solubility region. Relative dimensional changes as low as 3 × 10 −6 could be detected which makes this measuring combination sensitive and powerful in studying the behavior of metal hydrogen systems, particularly in ...
Y. Oren, E. Elish, A. Tamir, Z. Gavra
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Hemispherical bubbles growth on electrochemically charged aluminum with hydrogen

International Journal of Hydrogen Energy, 2007
The formation of surface bubbles (blisters) in aluminum during electrochemical charging by hydrogen was studied. The experiments reveal that, in aluminum samples, a wide distribution of hydrogen bubbles on the surface (blisters) was produced during electrochemical charging.
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Effects of electrochemical hydrogen charging on electrical properties of WO3 ceramics

Journal of Materials Science, 2007
Tungsten trioxide (WO3) films are used extensively in eletrochromic devices [1], surface acoustic wave gas sensors [2] and photo-catalytic degradation [3]. In recent years, there has also been a growing interest in WO3-based ceramics. Due to their high dielectric constant, WO3 ceramics have been proposed for applications in ceramic capacitors [4].
W. P. Chen, X. F. Zhu, Z. J. Shen, J. Q. Sun, J. Shi, X. G. Qiu, Y. Wang, H. L. W. Chan   +7 more
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Effect of deformation and charging conditions on crack and blister formation during electrochemical hydrogen charging

Acta Materialia, 2017
Abstract Hydrogen induced cracks were introduced in an ultra-low carbon (ULC) steel by subjecting it to electrochemical hydrogen charging. The damage characteristics were investigated for three material conditions, i.e. cold deformed, recovered, and recrystallized state.
A. Laureys, E. Van den Eeckhout, R. Petrov, K. Verbeken   +3 more
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Study of electrochemical hydrogen charge/discharge properties of FePO4 for application as negative electrodes in hydrogen batteries

Ceramics International, 2013
Abstract We report the electrochemical hydrogen charge/discharge properties of electrodes containing crystalline and amorphous FePO 4 as active material in KOH electrolyte. Crystalline and amorphous FePO 4 were synthesized by an alcohol-assisted precipitation method, and the powders obtained were characterized by X-ray diffraction.
Dae-Kwang Lim, Bhupendra Singh, Jungwon Kang, Jaekook Kim, Sun-Ju Song   +4 more
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ELECTROCHEMICAL HYDROGEN CHARGING, COMPARISON OF DIFFERENT METHODOLOGIES

Structural, 2023
Paterlini, Luca, Casanova, Luca, Ormellese, Marco, Re, Giorgio   +3 more
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Influence of Hydrogen Charging on the Formation of Nanostructural Titanium Surface by Electrochemical Treatment

ECS Transactions, 2006
The influences of nanophases (titanium hydride compounds) on the formation of nanostructural titanium oxide by electrochemical treatment was investigated by XPS, GIXRD, TEM, and SEM. Nanostructural TiO2 was formed after anodization with cathodic pretreatments. The nano-TiH2 is formed by cathodic pretreatments.
Keng-Liang Ou, C. S. Chen, C. L. Cheng, B. H. Lee, C. T. Lin, C. C. Chan   +5 more
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The Charge Transfer Effect of SERS Induced by the Electrochemical Hydrogen Evolution Reaction

Journal of Electrochemistry, 2001
As one of the important mechanisms of SERS, the charge transfer (CT) enhancement requires the strong interaction of the adsorbed species with the substrate in order to permit the transition of charge between the metal Fermi level (energy state) and the molecular orbital. The high enhancement needs the match of the energy gap between the Fermi level (or
Feng-ming LIU, Qi HAN, Yan-xia CHEN, Qi-ling ZHONG, Bin REN, Zhong-qun TIAN   +5 more
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Hydride dissociation and hydrogen evolution behavior of electrochemically charged pure titanium

Journal of Alloys and Compounds, 1995
Abstract A commercially pure α-titanium was electrochemically charged with hydrogen in a 5% H2SO4 solution at a current density of 5 kA m−2 for 14.4 ks (4 h), and the dissociation process of the electrochemically formed hydride and the evolution behavior of hydrogen from the samples were investigated by means of high temperature X-ray diffractometry,
Akito Takasaki, Yoshio Furuya, Kozo Ojima, Youji Taneda   +3 more
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