Characterization of a Poly‐4‐Vinylpyridine‐Supported CuPd Bimetallic Catalyst for Sonogashira Coupling Reactions

ChemPhysChem - Tập 18 Số 14 - Trang 1921-1928 - 2017
Claudio Evangelisti1, A. Balerna2, Rinaldo Psaro1, Graziano Fusini3,1, Adriano Carpita3, M. Benfatto2
1Institute of Molecular Science and Technologies, CNR, viaG. Fantoli 16/15, 20138 Milano, Italy
2Frascati National Laboratories, INFN, Via E. Fermi 40, 00044 Frascati, Roma, Italy
3Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy

Tóm tắt

AbstractCuPd bimetallic solvated metal atoms (SMA) synthesized by metal vapor synthesis (MVS) technique and supported on poly‐4‐vinylpyridine (PVPy) resin, showed significantly higher catalytic activity in Sonogashira‐type carbon–carbon coupling reactions than the corresponding monometallic Cu and Pd systems as well as their physical mixture. The analysis of the bimetallic catalyst combining transmission electron microscopy techniques and X‐ray absorption fine structure (XAFS) spectroscopy revealed the presence of small Pd nanoparticles (dm=2.5 nm) while the analysis of the X‐ray absorption data, at the Cu K‐edge suggests the formation of thin and incomplete Cu oxide layers around the Pd‐rich cores.

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Tài liệu tham khảo

Toshima N., 2008, Metal Nanoclusters in Catalysis and Materials Science. The Issue of Size-Control, 49

10.1021/cr040090g

10.1016/j.cattod.2005.01.002

10.1002/anie.200904877

10.1002/ange.200904877

10.1021/jp0265889

10.1016/S0920-5861(99)00270-9

10.1016/S1381-1169(01)00148-0

10.1006/jcat.1997.1588

10.1016/j.apcata.2011.09.020

10.1021/jp810049y

10.1039/c2jm30543g

10.1021/op1001325

10.1016/0021-9517(91)90321-T

10.1016/S0920-5861(02)00321-8

10.1016/j.ijhydene.2016.05.239

10.1021/jp982118w

10.1021/cm901378x

10.1007/s12274-016-1176-9

10.1016/j.tet.2012.02.028

10.3762/bjoc.9.160

10.1016/j.tet.2011.12.042

10.1016/j.electacta.2010.10.075

10.1016/j.molcata.2003.11.027

10.1039/c3ta14916a

10.1016/j.jcat.2014.02.008

10.1016/j.tet.2016.03.085

10.1021/am507764u

10.1021/am505798y

10.1002/cplu.201500015

10.1016/j.jorganchem.2014.01.006

10.1002/cctc.201601519

10.1039/c1cs15071e

10.1002/anie.200500368

10.1002/ange.200500368

10.1021/cr990257j

10.1002/(SICI)1521-3773(19990301)38:5<689::AID-ANIE689>3.0.CO;2-D

10.1002/(SICI)1521-3757(19990301)111:5<751::AID-ANGE751>3.0.CO;2-J

10.1016/S0022-328X(02)01158-0

10.1016/j.jcat.2009.01.005

10.1088/1742-6596/712/1/012057

10.1039/c0dt00412j

10.1016/j.jcat.2015.07.012

A. Balerna C. Evangelisti C. Tiozzo X-Ray Spectrom.2017 https://doi.org/10.1002/xrs.2731.

10.1039/C2NR32570E

10.1103/PhysRevB.36.5263

10.1021/ja0301673

10.1016/j.phpro.2016.11.077

10.1039/b000823k

10.1016/0301-0104(89)80095-3

10.1063/1.464153

10.4141/S00-073

10.1021/ja206763e

10.1107/S0909049501006422

10.1016/S0010-8545(00)80135-6

10.1103/PhysRevB.71.195418

10.1039/C5RA05952F

10.1016/j.jcat.2011.11.007

10.1016/j.apcata.2014.04.029

 

Pascarelli S., 1995, ESRF Newslett., 23, 17

10.1088/1742-6596/712/1/012021

10.1107/S0909049596004992

10.1107/S0909049504002122

10.1103/RevModPhys.53.769

10.1103/RevModPhys.72.621

10.1063/1.4908266

10.1107/S0909049505012719

10.1107/S0909049500016964

10.1103/PhysRevB.52.6332

10.1103/PhysRevB.52.2995