PVP-Stabilized Palladium Nanoparticles in Silica as Effective Catalysts for Hydrogenation Reactions | Zendy

Caroline Pires Ruas | Zendy; Daiane Kessler Fischer | Zendy; Marcos A. Gelesky | Zendy

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PVP-Stabilized Palladium Nanoparticles in Silica as Effective Catalysts for Hydrogenation Reactions

Author(s) -

Caroline Pires Ruas,

Daiane Kessler Fischer,

Marcos A. Gelesky

Publication year - 2013

Publication title -

journal of nanotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.347

H-Index - 29

eISSN - 1687-9511

pISSN - 1687-9503

DOI - 10.1155/2013/906740

Subject(s) - palladium , catalysis , materials science , methanol , molar ratio , nanoparticle , nuclear chemistry , morphology (biology) , texture (cosmology) , sol gel , chemical engineering , organic chemistry , chemistry , nanotechnology , artificial intelligence , biology , computer science , engineering , image (mathematics) , genetics

Palladium nanoparticles stabilized by poly (N-vinyl-2-pyrrolidone) (PVP) can be synthesized by corresponding Pd(acac)2 (acac = acetylacetonate) as precursor in methanol at 80∘C for 2 h followed by reduction with NaBH4 and immobilized onto SiO2 prepared by sol-gel process under acidic conditions (HF or HCl). The PVP/Pd molar ratio is set to 6.The effect of the sol-gel catalyst on the silica morphology and texture and on Pd(0) content was investigated. The catalysts prepared (ca. 2% Pd(0)/SiO2/HF and ca. 0,3% Pd(0)/SiO2/HCl) were characterized by TEM, FAAS, and SEM-EDS. Palladium nanoparticles supported in silica with a size 6.6 ± 1.4 nm were obtained. The catalytic activity was tested in hydrogenation of alkenes

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