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Lookup NU author(s): Dr Julian Knight
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© 2025 Wiley-VCH GmbH.The development of an efficient methodology for enhancing the catalytic efficiency toward hydrolysis of sodium borohydride (NaBH4) is of vital significance but remains a long-standing challenge. In this work, RuNPs@[COK-12]─NH2 2a and RuNPs@[COK-12]─NH2-imid 2b were synthesized and fully characterized by several analytical techniques. The supported RuNPs 2a and 2b catalyze the release of H2 from NaBH4 with remarkable proficiencies, and catalyst 2b was found to be more effective than its counterpart 2a. A TOF of 176.3 moleH2.molcat−1 min−1 for 2b was attained when the hydrolytic reaction was conducted with a low catalyst loading of 0.1 mol%. The reaction kinetics investigations revealed that the hydrolysis is first order in catalyst and NaBH4 with apparent Ea of 32.1 and 29.0 kJ mol−1 for RuNPs catalysts 2a and 2b, respectively. The efficacy of RuNPs 2b for the hydrolysis of NaBH4 showed that the catalytic process is significantly faster in H2O than in D2O with KIE kH/kD = 2.6. Furthermore, RuNPs 2b retains 80% of its initial catalytic activity after 5th cycles.
Author(s): Al-shaikh H, Knight JG, Lasri J
Publication type: Article
Publication status: Published
Journal: ChemistrySelect
Year: 2025
Volume: 10
Issue: 19
Print publication date: 20/05/2025
Online publication date: 19/05/2025
Acceptance date: 05/05/2025
ISSN (print): 2365-6549
ISSN (electronic): 2365-6549
Publisher: John Wiley and Sons Inc
URL: https://doi.org/10.1002/slct.202501482
DOI: 10.1002/slct.202501482
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