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Nanoalumina supported palladium(0) nanoparticle catalyst for releasing H2 from dimethylamine borane
- Source :
- Applied Surface Science. 487:433-441
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Palladium(II) 2,4-pentanedionate, impregnated on alumina nanopowder, was reduced by dimethylamine borane (DMAB) forming Pd(0) nanoparticles (NPs) at room temperature. Pd(0) NPs could be isolated from solution and characterized by ATR-IR, UV–vis, XRD, SEM, TEM, XPS and BET. The results obtained from TEM images reveal the formation of palladium(0) nanoparticles on gamma-alumina, having a mean particle size of 7.1 ± 2.6 nm. Alumina supported Pd(0) NPs with various metal loadings were employed as catalyst in dehydrogenation of DMAB at room temperature and the sample with 5.0% wt. Pd provides the highest turnover frequency (TOF = 73 h−1) at 25.0 ± 0.5 °C. Kinetics of the catalytic dehydrogenation was also investigated depending on Pd concentration and temperature to determine the kinetic parameters of the H2 release reaction.
- Subjects :
- Materials science
General Physics and Astronomy
Nanoparticle
chemistry.chemical_element
02 engineering and technology
Surfaces and Interfaces
General Chemistry
Borane
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Heterogeneous catalysis
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Catalysis
chemistry.chemical_compound
X-ray photoelectron spectroscopy
chemistry
Dehydrogenation
0210 nano-technology
Dimethylamine
Nuclear chemistry
Palladium
Subjects
Details
- ISSN :
- 01694332
- Volume :
- 487
- Database :
- OpenAIRE
- Journal :
- Applied Surface Science
- Accession number :
- edsair.doi...........07d7a9238a5cda5f918603bf510eb137