Room temperature hydrogen generation from hydrolysis of ammonia-borane over an efficient NiAgPd/C catalyst

Handle URI:
http://hdl.handle.net/10754/563898
Title:
Room temperature hydrogen generation from hydrolysis of ammonia-borane over an efficient NiAgPd/C catalyst
Authors:
Hu, Lei; Zheng, Bin; Lai, Zhiping ( 0000-0001-9555-6009 ) ; Huang, Kuo-Wei ( 0000-0003-1900-2658 )
Abstract:
NiAgPd nanoparticles are successfully synthesized by in-situ reduction of Ni, Ag and Pd salts on the surface of carbon. Their catalytic activity was examined in ammonia borane (NH3BH3) hydrolysis to generate hydrogen gas. This nanomaterial exhibits a higher catalytic activity than those of monometallic and bimetallic counterparts and a stoichiometric amount of hydrogen was produced at a high generation rate. Hydrogen production rates were investigated in different concentrations of NH3BH3 solutions, including in the borates saturated solution, showing little influence of the concentrations on the reaction rates. The hydrogen production rate can reach 3.6-3.8 mol H2 molcat -1 min-1 at room temperature (21 °C). The activation energy and TOF value are 38.36 kJ/mol and 93.8 mol H2 molcat -1 min-1, respectively, comparable to those of Pt based catalysts. This nanomaterial catalyst also exhibits excellent chemical stability, and no significant morphology change was observed from TEM after the reaction. Using this catalyst for continuously hydrogen generation, the hydrogen production rate can be kept after generating 6.2 L hydrogen with over 10,000 turnovers and a TOF value of 90.3 mol H2 molcat -1 min-1.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division; Numerical Porous Media SRI Center (NumPor); Chemical and Biological Engineering Program; Advanced Membranes and Porous Materials Research Center; Chemical Science Program; HCL
Publisher:
Elsevier BV
Journal:
International Journal of Hydrogen Energy
Issue Date:
Dec-2014
DOI:
10.1016/j.ijhydene.2014.10.032
Type:
Article
ISSN:
03603199
Sponsors:
Financial Support is provided by King Abdullah University of Science and Technology.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Chemical and Biological Engineering Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorHu, Leien
dc.contributor.authorZheng, Binen
dc.contributor.authorLai, Zhipingen
dc.contributor.authorHuang, Kuo-Weien
dc.date.accessioned2015-08-03T12:18:48Zen
dc.date.available2015-08-03T12:18:48Zen
dc.date.issued2014-12en
dc.identifier.issn03603199en
dc.identifier.doi10.1016/j.ijhydene.2014.10.032en
dc.identifier.urihttp://hdl.handle.net/10754/563898en
dc.description.abstractNiAgPd nanoparticles are successfully synthesized by in-situ reduction of Ni, Ag and Pd salts on the surface of carbon. Their catalytic activity was examined in ammonia borane (NH3BH3) hydrolysis to generate hydrogen gas. This nanomaterial exhibits a higher catalytic activity than those of monometallic and bimetallic counterparts and a stoichiometric amount of hydrogen was produced at a high generation rate. Hydrogen production rates were investigated in different concentrations of NH3BH3 solutions, including in the borates saturated solution, showing little influence of the concentrations on the reaction rates. The hydrogen production rate can reach 3.6-3.8 mol H2 molcat -1 min-1 at room temperature (21 °C). The activation energy and TOF value are 38.36 kJ/mol and 93.8 mol H2 molcat -1 min-1, respectively, comparable to those of Pt based catalysts. This nanomaterial catalyst also exhibits excellent chemical stability, and no significant morphology change was observed from TEM after the reaction. Using this catalyst for continuously hydrogen generation, the hydrogen production rate can be kept after generating 6.2 L hydrogen with over 10,000 turnovers and a TOF value of 90.3 mol H2 molcat -1 min-1.en
dc.description.sponsorshipFinancial Support is provided by King Abdullah University of Science and Technology.en
dc.publisherElsevier BVen
dc.subjectAmmonia-boraneen
dc.subjectHeterogeneous catalysisen
dc.subjectHydrogen generationen
dc.subjectHydrolysisen
dc.subjectNanoparticlesen
dc.titleRoom temperature hydrogen generation from hydrolysis of ammonia-borane over an efficient NiAgPd/C catalysten
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentNumerical Porous Media SRI Center (NumPor)en
dc.contributor.departmentChemical and Biological Engineering Programen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentHCLen
dc.identifier.journalInternational Journal of Hydrogen Energyen
kaust.authorHu, Leien
kaust.authorZheng, Binen
kaust.authorLai, Zhipingen
kaust.authorHuang, Kuo-Weien
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