Facilitation of the reduction of Pd(II) by the glass surface – Development of a glass-supported palladium catalyst

[Display omitted] •A glass-supported palladium catalyst was prepared with simple manipulations.•The catalyst was recovered from the reaction mixture without any special treatment.•The catalyst was repeatedly (12 times) used with low catalytic loading (0.05mol%).•The glass surface reduce Pd(II) speci...

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Bibliographic Details
Published in:Chemical physics letters 2014-07, Vol.608, p.340-343
Main Authors: Nishiwaki, Nagatoshi, Mori, Yasuyuki, Fukuoka, Erina, Asahara, Haruyasu, Hirao, Shotaro, Sawayama, Jun, Saigo, Kazuhiko, Konishi, Tomoya, Shimoda, Masahiko
Format: Article
Language:English
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Summary:[Display omitted] •A glass-supported palladium catalyst was prepared with simple manipulations.•The catalyst was recovered from the reaction mixture without any special treatment.•The catalyst was repeatedly (12 times) used with low catalytic loading (0.05mol%).•The glass surface reduce Pd(II) species and stabilize the Pd(0) nanoparticles.•An amine added as the reductant prevents the nanodispersion of palladium species. A glass-supported palladium catalyst was developed. The catalyst could be used repeatedly (12 times) with a low catalytic loading (0.05mol%) for the Heck reaction with a turnover number of 45000, and no special treatment was necessary before catalyst reuse. The catalytic activity was maintained even after the catalyst was left to stand in air for one month. Furthermore, it was found that the glass surface assisted the adsorption and reduction of the Pd(II) species, through which catalytically active Pd(0) nanoparticles were formed and stabilized.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2014.06.005