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. 2019 Mar 4;9(3):360. doi: 10.3390/nano9030360

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Hydrogen release curves in the presence of NaOH (a), Na₂CO₃ (c), and NH₃·H₂O (e), and the corresponding TOF values at different concentrations (b,d,f).