title: Tailored synthesis of various nanomaterials by using a graphene-oxide-based gel as a nanoreactor and nanohybrid-catalyzed C-C bond formation.
abstract: New graphene oxide (GO)-based hydrogels that contain vitamin B2/B12 and vitamin C (ascorbic acid) have been synthesized in water (at neutral pH value). These gel-based soft materials have been used to synthesize various metal nanoparticles, including Au, Ag, and Pd nanoparticles, as well as nanoparticle-containing reduced graphene oxide (RGO)-based nanohybrid systems. This result indicates that GO-based gels can be used as versatile reactors for the synthesis of different nanomaterials and hybrid systems on the nanoscale. Moreover, the RGO-based nanohybrid hydrogel with Pd nanoparticles was used as an efficient catalyst for C-C bond-formation reactions with good yields and showed high recyclability in Suzuki-Miyaura coupling reactions.
authors.affiliation: Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032 (India), Fax: (+91) 33-2473-2805.
authors.forename: Abhijit
authors.initials: A
authors.lastname: Biswas
authors.forename: Arindam
authors.initials: A
authors.lastname: Banerjee
mesh_terms: D001713:Biphenyl Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D006108:Graphite / Q000737:chemistry*; D006846:Hydrocarbons, Halogenated / Q000737:chemistry; D020100:Hydrogels / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D036103:Nanotechnology; D010087:Oxides / Q000737:chemistry*
chemical_list: D001713:Biphenyl Compounds; D006846:Hydrocarbons, Halogenated; D020100:Hydrogels; D010087:Oxides; D006108:Graphite
keywords: cross-coupling; graphene; nanoparticles; nanoreactors; vitamins