| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6454426 | Applied Catalysis B: Environmental | 2017 | 8 Pages |
â¢Ultrasmall Pt clusters are well dispersed on the surface of the g-C3N4 nanosheets.â¢Pt/g-C3N4 as an efficient visible light driven photoelectrocatalyst for MOR.â¢Pt/g-C3N4 composite showed enhanced photoelectrocatalytic activity and stability.
In this paper, ultrathin two dimensional (2D) g-C3N4 nanosheet worked as support for the deposition of ultrasmall Pt nanoclusters. The average size of Pt nanocluster is about 3.2Â nm. Firstly, the as-prepared Pt/g-C3N4 modified electrode exhibited enhanced electrocatalytic ability in methanol oxidation reaction (MOR) compared to bare Pt nanoparticles. Moreover, when this electrode was upon visible light irradiation, higher performance of MOR was clearly observed compared to the traditional ambient electrocatalytic oxidation. This is owing to the synergistic effects of photocatalytic and electrocatalytic MOR together with the efficient interfacial charger transfer in Pt/g-C3N4. These results show that 2D ultrathin g-C3N4 nanosheets can be used as promising photoactived support in the fields of solar and chemical energy conversion and also provide more insights into developing novel visible light photo-responsive electrode in direct methanol fuel cell.
Graphical abstractThe synergistic effects of electro- and photo- catalytic methanol oxidation reaction (MOR) of Pt/g-C3N4 contribute to the enhanced catalytic MOR performance.Download high-res image (196KB)Download full-size image
