Novel activated carbon supported trimetallic PdCoAg nanoparticles as efficient catalysts for the hydrolytic dehydrogenation of ammonia borane

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dc.authorid2019. 44(21): p.10561-10572en_US
dc.contributor.authorMehmet Sait İZGİ
dc.date.accessioned2019-11-28T13:56:25Z
dc.date.available2019-11-28T13:56:25Z
dc.date.issued2019en_US
dc.departmentBeden Eğitimi ve Spor Yüksekokuluen_US
dc.description.abstractActivated carbon (AC) supported palladium, cobalt and silver nanoparticle (PdCoAg/AC) catalysts were prepared by in situ reduction of sodium borohydride (NaBH4) and characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX), Transmission electron microscopy (TEM) and X-ray Photoelectron Spectroscopy (XPS). The PdCoAg/AC catalyst is active in the hydrolysis of ammonia-borane (AB) even at low temperatures. Compared with mono- (Pd) and bi-metallic (PdCo) nanoparticles, this trimetallic (PdCoAg) structure showed greatly increased catalytic activity for AB hydrolysis. Their hydrolysis completion time was 50 s. This study also included full experimental details of kinetic data to determine the activation parameters (Ea, and ) for the rate law and the catalytic hydrolysis of AB. In addition, the PdCoAg/AC catalysts had favorable catalytic activity also after seven runs. Hydrogen generation rate (HG), Ea, and were obtained at 25 °C as 4666.66 mL min−1g−1 (2 mmol AB and 50 mg PdCoAg/AC), 26.836 kJ mol-1, 29.416 kJ mol−1and –108.42 J mol−1K−1, respectively. In addition, the study showed that Pd0.6Co0.2CAg0.2/AC (Pd:Co:Ag atomic ratio = 6:2:2) showed the total turnover frequency (TOF) value of 6624 h−1. These results demonstrate that the PdCoAg/AC catalyst is a promising alternative in search of the practical application of AB as a hydrogen storage material for fuel cell applications.en_US
dc.identifier.endpage10562en_US
dc.identifier.issue21en_US
dc.identifier.scopus2-s2.0-85063101357
dc.identifier.scopusqualityQ1
dc.identifier.startpage10561en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12604/1990
dc.identifier.volume44en_US
dc.identifier.wosWOS:000466618300037
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isootheren_US
dc.publisherJournal of Hydrogen Energyen_US
dc.relation.publicationcategoryGazete Makalesi - Ulusalen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKG_20241224
dc.subjectAmmonia boranePalladium cobalt silver nanoparticlesActivated carbonHydrolysisHydrogenHeterogeneous catalysisen_US
dc.titleNovel activated carbon supported trimetallic PdCoAg nanoparticles as efficient catalysts for the hydrolytic dehydrogenation of ammonia boraneen_US
dc.typeArticleen_US

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