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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received April 3, 2015
Accepted December 16, 2015
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Surface analysis of three aluminum foils and relation to hydrogen generation capability

Faculty of Engineering, Kyoto University, A3-120 Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto-shi, Kyoto 615-8510, Japan
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Korean Journal of Chemical Engineering, April 2016, 33(4), 1255-1260(6), 10.1007/s11814-015-0283-8
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Abstract

We have successfully generated hydrogen using aluminum foil instead of aluminum powder from the perspective of improving safety. We analyzed the surface states of three aluminum foils and correlated their surface properties with hydrogen generation capability. The surfaces of the foils were analyzed by time-of-flight secondary ion mass spectrometry (TOF-SIMS), X-ray photoelectron spectroscopy, and atomic force microscopy. Hydrogen generation was performed by adding Ca(OH)2 solution to the aluminum foil in water. The TOF-SIMS results showed that the Al foils have Al2O3-, AlO2-, (OH)2AlO-, (Al2O3)OH-, and (Al2O3)AlO2- and related species on their surfaces. The amount of these species on the surface of an Al foil is linearly correlated with the hydrogen generation reaction rate.

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