Switchable mirrors based on nickel-magnesium films

被引：317

作者：

Richardson, TJ ^{[1
]}

Slack, JL ^{[1
]}

Armitage, RD ^{[1
]}

Kostecki, R ^{[1
]}

Farangis, B ^{[1
]}

Rubin, MD ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 20期

关键词：

D O I：

10.1063/1.1371959

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An electrochromic mirror electrode based on reversible uptake of hydrogen in nickel magnesium alloy films is reported. Thin, magnesium-rich Ni-Mg films prepared on glass substrates by co-sputtering from Ni and Mg targets are mirror-like in appearance and have low visible transmittance. Upon exposure to hydrogen gas or on cathodic polarization in alkaline electrolyte, the films take up hydrogen and become transparent. When hydrogen is removed, the mirror properties are recovered. The transition is believed to result from reversible formation of Mg2NiH4 and MgH2. A thin overlayer of palladium was found to enhance the kinetics of hydrogen insertion and extraction, and to protect the metal surface against oxidation. (C) 2001 American Institute of Physics.

引用

页码：3047 / 3049

页数：3

共 27 条

[1] MAGNESIUM HYDRIDE - A HOMOGENEOUS-CATALYZED SYNTHESIS AND ITS USE IN HYDROGEN STORAGE [J].

BOGDANOVIC, B .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1984, 9 (11) :937-941

[2] DIMAGNESIUM IRON(II) HYDRIDE, MG2FEH6, CONTAINING OCTAHEDRAL FEH64- ANIONS [J].

DIDISHEIM, JJ ;

ZOLLIKER, P ;

YVON, K ;

FISCHER, P ;

SCHEFER, J ;

GUBELMANN, M ;

WILLIAMS, AF .

INORGANIC CHEMISTRY, 1984, 23 (13) :1953-1957

[3] THE EFFECT OF SURFACE NICKEL ON THE HYDRIDING-DEHYDRIDING KINETICS OF MGH2 [J].

EISENBERG, FG ;

ZAGNOLI, DA ;

SHERIDAN, JJ .

JOURNAL OF THE LESS-COMMON METALS, 1980, 74 (02) :323-331

[4] ELECTRICAL AND OPTICAL-PROPERTIES OF MG2NIHX FILMS [J].

FUJITA, Y ;

YAMAGUCHI, M ;

YAMAMOTO, I .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1989, 163 :633-634

[5] In situ study of hydriding-dehydriding properties in some Pd/Mg thin films with different degree of Mg crystallization [J].

Higuchi, K ;

Kajioka, H ;

Toiyama, K ;

Fujii, H ;

Orimo, S ;

Kikuchi, Y .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 :484-489

[6] Hydrogen sorption kinetics in partly oxidized Mg films [J].

Hjort, P ;

Krozer, A ;

Kasemo, B .

JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 237 (1-2) :74-80

[7] DETERMINATION OF HYDROGEN-ATOM CONFIGURATIONS IN MG2NIH4 BY ENTROPY CONSIDERATIONS AND INFRARED-SPECTRA [J].

HUANG, N ;

YAMAUCHI, H ;

WU, J ;

WANG, QD .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1989, 163 :225-230

[8] Yttrium and lanthanum hydride films with switchable optical properties [J].

Huiberts, JN ;

Griessen, R ;

Rector, JH ;

Wijngaarden, RJ ;

Dekker, JP ;

deGroot, DG ;

Koeman, NJ .

NATURE, 1996, 380 (6571) :231-234

[9] SEMICONDUCTING PROPERTIES OF MG2NIH4 [J].

LUPU, D ;

SARBU, R ;

BIRIS, A .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1987, 12 (06) :425-426

[10] OPTICAL-PROPERTIES OF MG2NIH4 AND HYDROGEN DIFFUSION [J].

LUPU, D ;

GRECU, R ;

FARCAS, SI .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 1993, 181 :143-150

← 1 2 3 →