cm6b02780_si_001.pdf (5.52 MB)
Network of Heterogeneous Catalyst Arrays on the Nitrogen-Doped Graphene for Synergistic Solar Energy Harvesting of Hydrogen from Water
journal contribution
posted on 2016-10-10, 00:00 authored by Sang Rim Shin, Jung Hyo Park, Keon-Han Kim, Kyung Min Choi, Jeung Ku KangCombination
of different nanoparticles has been suggested as a promising approach
to realize advanced functionalities for many applications. Herein,
we report a new method to make uniform sized nanoparticle arrays in
a network by arranging a micelle monolayer in an ordered fashion on
the conductive nitrogen-doped graphene (NG). Moreover, coarrangement
of two different arrays using both metal and metal oxide nanoparticles
on the conductive graphene is found to result in the synergistic and
cooperative photocatalytic activity for production of hydrogen from
water using solar energy, with the excellent performance attributed
to efficient electron transfer from one nanoparticle through the conductive
NG to the other nanoparticle in a single-layer network. Consequently,
this work suggests a promising solution to design high-performance
catalysts in a network of different nanoparticle arrays on thin and
flexible conductive substrates.