We report a facile method for assembly of a monolayer array of nitrogen-doped graphene (NG) and nanoparticles (NPs) and the subsequent transfer of two layers onto a solid substrate (S). Using 3 nm NiPd NPs as an example, we demonstrate that NiPd-NG-Si (Si=silicon wafer) can function as a catalyst and show maximum NiPd catalysis for the hydrolysis of ammonia borane (H3NBH3, AB) with a turnover frequency (TOF) of 4896.8 h−1 and an activation energy (Ea) of 18.8 kJ mol−1. The NiPd-NG-S catalyst is also highly active for catalyzing the transfer hydrogenation from AB to nitro compounds, leading to the green synthesis of quinazolines in water. Our assembly method can be extended to other graphene and NP catalyst materials, providing a new 2D NP catalyst platform for catalyzing multiple reactions in one pot with maximum efficiency.

Maximizing the Catalytic Activity of Nanoparticles through Monolayer Assembly on Nitrogen-Doped Graphene

Experimental studies of direct contact heat transfer in a slurry bubble column at high gas temperature of a helium–water–alumina system

Measuring the Average Volumetric Heat Transfer Coefficient of a Liquid-Liquid-Vapour Direct Contact Heat Exchanger

Hailing Fu

Papers

Experimental study of direct contact vaporization heat transfer on n-pentane-water flowing interface

Direct contact evaporation heat transfer coefficient and drobble size distribution in a 2D column

The effect of Dixon rings on direct contact evaporative heat transfer performance