Fabrication of palladium/graphene oxide composite by plasma reduction at room temperature
Advanced Nano Technology Center, School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China
Nanoscale Research Letters 2012, 7:234 doi:10.1186/1556-276X-7-234Published: 26 April 2012
Pd nanoparticles were fabricated on graphene oxide (GO) using a deposition-precipitation method with a glow discharge plasma reduction at room temperature. Argon was employed as the plasma-generating gas. The novel plasma method selectively reduces the metal ions. The graphene oxide has no change with this plasma reduction according to the Fourier transform infrared analysis. The Pd nanoparticles on the GO were uniformly distributed with an average diameter of 1.6 nm. The functional groups on the GO not only prevent Pd nanoparticles from further aggregation but also provide a strong hydrophilic property to the Pd/GO composite, which can form stable colloidal dispersions in water.