01736nas a2200193   4500008004100000022001400041245020100055210006900256260011000325300001400435490000600449520084500455100002001300700001901320700003301339700002501372700002001397856012501417       2015                        eng d  a2044-475300aGreen synthesis of stable Cu(0) nanoparticles onto reduced graphene oxide nanosheets: a reusable catalyst for the synthesis of symmetrical biaryls from arylboronic acids under base-free conditions0 aGreen synthesis of stable Cu0 nanoparticles onto reduced graphen  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcNOV  a1251-12600 v53 a<p>Highly stable Cu(0) nanoparticles were synthesized on reduced graphene oxide (rGO) sheets using a cost-effective and green method. The synthesized Cu(0)-nanoparticle-rGO composites exhibit excellent catalytic activity for the synthesis of symmetrical biaryls from arylboronic acids under microwave irradiation. The reaction proceeds smoothly in base-free conditions with easy recovery and reuse of the catalyst. The methodology is compatible with various functional groups and provides an attractive protocol for the synthesis of symmetrical biaryls with very good yields. HRTEM, XPS and XRD analyses showed the catalyst to be recyclable. The Cu(0) nanoparticles are stable in the rGO nanosheets, and the particle size distribution and oxidation state of the Cu(0) nanoparticle remain the same after performing the chemical reaction.</p>1 aHussain, Najrul1 aGogoi, Pranjal1 aAzhagan, Muniraj, Vedi Kuyil1 aShelke, Manjusha, V.1 aDas, Manash, R.  uhttps://library.ncl.res.in/content/green-synthesis-stable-cu0-nanoparticles-reduced-graphene-oxide-nanosheets-reusable-3