Scalable Preparation of Graphene: Effect of Synthesis Methods on the Material Characteristics

Facile Synthesis of Pd-CuO Nanoplates with Enhanced SO2 and H2 Gas-Sensing Characteristics

“…The use of P123 as reducing agent is advantageous over other reagents because of the ability to control the size of the Pd nanoparticles and remove contamination by simple calcination. 51 Finally, the products were washed again with ethanol and collected by centrifugation at a rate of 400 rpm. This method was very effective for decoration of Pd nanoparticles on the surface of metal oxide at room temperature without the need for vacuum conditions or reducing and stabilizing agents.…”

“…The catalytic activity of the Pd nanoparticles in enhancing the H 2 response of the CuO nanoplates is similar to that reported elsewhere for NiO nanosheets. 51…”

“…50 Enhancement of SO 2 and H 2 gas-sensing performance is vital for practical applications, thus here we used Pd nanoparticles to decorate the surface of CuO nanoplates to enhance their gas-sensing performance because Pd nanoparticles show good catalytic performance for dissociation of H 2 molecule, and the spillover catalytic for the enhancement of ion adsorption of oxygen species. 51 In the present study, CuO nanoplates were synthesized by a facile hydrothermal method then decorated with Pd nanoparticles by directed reduction without using any stabilizer. The synthesized materials were then spin-coated onto comb-type Pt interdigitated electrodes (Pt IDEs) for gas-sensing characterization.…”