Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/10689
Title: | Ruthenium and Platinum-Modified Titanium Dioxide Support for NaBH4 Hydrolysis | Authors: | Altaf, Çigdem Tuc Minkina, Valentina G. Shabunya, Stanislav I. Çolak, Tuluhan O. Sankir, Nurdan Demirci Sankir, Mehmet Kalinin, Vladimir I. |
Keywords: | Sodium-Borohydride Hydrolysis Hydrogen Generation System Catalyzed-Hydrolysis Tio2 Nanofiber Degussa P-25 Ru Composite Kinetics Storage Behavior Cobalt |
Publisher: | Amer Chemical Soc | Abstract: | Highly stable platinum (Pt) and ruthenium (Ru)-based catalysts on titanium oxide (TiO2) nanoparticle support were prepared. The productivity of hydrogen generation from sodium borohydride (NaBH4) hydrolysis was observed to be as high as 95%. The activation energies for the hydrolysis reaction in the presence of Ru/TiO2 in aqueous and alkaline solutions were 62.00 and 64.65 kJ mol(-1), respectively. On the other hand, the activation energy value of the hydrolysis reaction with the Pt/TiO2 catalyst decreased from 60.5 to 53.2 kJ mol(-1), and the solution was changed from an aqueous to an alkaline medium. The experimental results have indicated that NaOH concentration (ranging from 0.5 to 2 M) affected the hydrogen generation rate (HGR) differently for both metals on the TiO2 support. Consequently, the HGR of the hydrolysis reaction in the presence of the Ru/TiO2 catalyst decreased with increasing NaOH concentration, whereas the Pt/TiO2 catalyst efficiency increased with increasing NaOH concentration. | URI: | https://doi.org/10.1021/acsomega.3c04269 https://hdl.handle.net/20.500.11851/10689 |
ISSN: | 2470-1343 |
Appears in Collections: | Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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altaf-et-al-2023-ruthenium-and-platinum-modified-titanium-dioxide-support-for-nabh4-hydrolysis.pdf | 3.12 MB | Adobe PDF | View/Open |
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