Synthesis, characterization, and electrochemical properties of Ni(OH)2/ultra-stable Y zeolite composite
A novel composite of Ni(OH) 2 /ultra-stable Y zeolite materials was synthesized by an improved chemical precipitation method, which used the ultra-stable Y zeolite as the template. The Ni(OH) 2 /ultra-stable Y zeolite composite and its microstructure were characterized by X-ray diffraction measureme...
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Published in | Journal of materials science Vol. 44; no. 16; pp. 4466 - 4471 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.08.2009
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | A novel composite of Ni(OH)
2
/ultra-stable Y zeolite materials was synthesized by an improved chemical precipitation method, which used the ultra-stable Y zeolite as the template. The Ni(OH)
2
/ultra-stable Y zeolite composite and its microstructure were characterized by X-ray diffraction measurements and transmission electron microscopy. Electrochemical studies were carried out using cyclic voltammetry, chronopotentiometry technology and ac impedance spectroscopy, respectively. The result shows that the loose-packed whisker Ni(OH)
2
phase has profound impacts on electrode performance at very high power output. A maximum discharge capacity of 185.6 mA-h/g (1670 F/g), or 371 mA-h/g (3340 F/g) after correcting for weight percent of nickel hydroxide phase at the current density of 625 mA/g could be achieved in a half-cell setup configuration for the Ni(OH)
2
/ultra-stable Y zeolite electrode, suggesting its potential application in electrode material for secondary batteries and electrochemical capacitors. Furthermore, the effect of NH
4
Cl concentration on the electrochemical properties characteristics has also been systemically explored. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0022-2461 1573-4803 |
DOI: | 10.1007/s10853-009-3677-3 |