Thin film formation of Pd/reduced-graphene oxide and Pd nanoparticles at oil–water interface, suitable as effective catalyst for Suzuki–Miyaura reaction in water

Supercritical CO2 mediated synthesis and catalytic activity of graphene/Pd nanocomposites

“…6), indicating that the RGO/Pd nanocomposites were quite effective as catalysts for this reaction. This yield is much higher than that of the other previous reports, such as Pd/single layer GO (66% for 1 h reaction) [18], RGO/Pd (95% for 30 min reaction) [19] and Pd-graphene (95.5% for 5 min reaction) [20]. …”

“…Thus far, a range of methods has been designed to synthesize graphene/Pd nanocomposite, including solution phase redox reaction [13][14][15][16][17][18][19][20], microwave irradiation [21,22], electrochemical deposition [23][24][25], laser irradiation [26,27], UV light irradiation [28], incipient wetness impregnation [29,30], chemical vapor deposition [31,32], photocatalytic reduction [33], bubbling H 2 reduction [34], and wet impregnation [35]. However, in these synthetic processes, product separation and residual removal consumes considerable energy and cost.…”

Preparation of low-dimensional carbon material-based metal nanocomposites using a polarizable organic/water interface

“…28 Furthermore, the employment of easily processable, liquid-phase exfoliated, reduced graphene oxide (rGO) materials to support deposition of noble metals at the organic/water interface has been widely investigated, mainly to prepare GR-based catalysts or electrode materials on solid substrates. 3,6,22,24,[29][30][31][32] The use of CVD GR offers a macroscopic material-visible to the naked eye-that has not been deliberately oxidized and consists of a high-quality, well-defined monolayer, as opposed to liquid-phase exfoliated rGO aggregates. 27 Functionalization of a free-standing CVD GR monolayer with noble metal (Au, Pt, Pd) nanoparticles, using a low-cost, two-step, solution chemistrybased process has been reported previously.…”

Graphene Oxide-Supported Oxime Palladacycles as Efficient Catalysts for the Suzuki–Miyaura Cross-Coupling Reaction of Aryl Bromides at Room Temperature under Aqueous Conditions

“…Oxime palladacycles are considered reservoirs of highly active palladium nanoparticles [65][66][67]. Usually, PdNps supported on graphene materials are prepared by reduction of a Pd salt or Pd catalyst in the presence of the corresponding carbonaceous support [44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61]. Then, we next turned our attention to the reduction of 1 with NaBH4 and the catalytic activity of the supported PdNPs was thus obtained.…”

“…This type of catalyst has been mainly used in the Suzuki-Miyaura cross-coupling reaction [45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62]. However, to the best of our knowledge, only very recently has some attention been paid to the immobilization of palladacycles to graphene materials, with two studies having been reported so far using covalent immobilization strategies [63,64].…”