Palladium Nanoparticle-Loaded Cellulose Paper: A Highly Efficient, Robust, and Recyclable Self-Assembled Composite Catalytic System.
We present a novel strategy based on the immobilization of palladium nanoparticles (Pd NPs) on filter paper for development of a catalytic system with high efficiency and recyclability. Oleylamine-capped Pd nanoparticles, dispersed in an organic solvent, strongly adsorb on cellulose filter paper, which shows a great ability to wick fluids due to its microfiber structure. Strong van der Waals forces and hydrophobic interactions between the particles and the substrate lead to nanoparticle immobilization, with no desorption upon further immersion in any solvent. The prepared Pd NP-loaded paper substrates were tested for several model reactions such as the oxidative homocoupling of arylboronic acids, the Suzuki cross-coupling reaction, and nitro-to-amine reduction, and they display efficient catalytic activity and excellent recyclability and reusability. This approach of using NP-loaded paper substrates as reusable catalysts is expected to open doors for new types of catalytic support for practical applications.
†Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.
Guangchao
G
Zheng
†Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.
Katharina
K
Kaefer
†Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.
Stefanos
S
Mourdikoudis
‡Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia - San Sebastián, Spain.
Lakshminarayana
L
Polavarapu
§Departamento de Química Orgánica, Universidade de Vigo, 36310 Vigo, Spain.
Belén
B
Vaz
∥Physical Organic Chemistry Centre, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom.
Samantha E
SE
Cartmell
∥Physical Organic Chemistry Centre, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom.
Azzedine
A
Bouleghlimat
∥Physical Organic Chemistry Centre, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom.
Niklaas J
NJ
Buurma
‡Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia - San Sebastián, Spain.
Luis
L
Yate
§Departamento de Química Orgánica, Universidade de Vigo, 36310 Vigo, Spain.
Ángel R
ÁR
de Lera
†Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.|‡Bionanoplasmonics Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia - San Sebastián, Spain.|⊥Ikerbasque, Basque Foundation for Science, 48011 Bilbao, Spain.
Luis M
LM
Liz-Marzán
†Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.
Isabel
I
Pastoriza-Santos
†Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.
Jorge
J
Pérez-Juste
D001897:Boronic Acids / Q000737:chemistry; D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D053768:Metal Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D055672:Static Electricity
D001897:Boronic Acids; D010165:Palladium; D002482:Cellulose
Pd nanoparticles; Pd-catalyzed reactions; composite materials; recyclability; supported catalyst