 Preparation and characterization of Ni-M (M: Ru, Rh, Pd) nanoclusters as efficient catalysts for hydrogen evolution from ammonia borane methanolysisNihat Tunç and Murat Rakap Renewable Energy, 2020, vol. 155, issue C, 1222-1230 Abstract: Here, first-time preparation, characterization, and catalytic use of hydroxyapatite-supported nickel-based Ni-M (NiRu@HAP, NiRh@HAP, NiPd@HAP) nanoclusters in hydrogen evolution from methanolysis of ammonia borane is reported. Ni-M nanoclusters have been in-situ formed by reduction of hydroxyapatite-supported corresponding metal ions during methanolysis reaction of ammonia borane. The hydroxyapatite-supported Ni-M nanoclusters are isolated as stable solid materials to be characterized by advanced analytical techniques of ICP-OES, TEM, XPS, and XRD. They are found to be isolable, highly redispersible and reusable nanocatalysts for hydrogen evolution from ammonia borane methanolysis under ambient conditions. Ni20Ru80@HAP, Ni38Rh62@HAP, and Ni20Pd80@HAP nanoclusters have TOF values of 58.9, 120.3, and 25.2 min−1, respectively, in the methanolysis of ammonia borane at 25 ± 0.1 °C. Their apparent activation energy (Ea) values for the same reaction are calculated to be 65.9, 66.8, and 58.1 kJ/mol, respectively, for Ni20Ru80@HAP, Ni38Rh62@HAP, and Ni20Pd80@HAP nanoclusters. Keywords: Nickel; Rhodium; Palladium; Ruthenium; Ammonia borane; Methanolysis (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:155:y:2020:i:c:p:1222-1230 DOI: 10.1016/j.renene.2020.04.079 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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