Journal
SMALL
Volume 16, Issue 35, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202002356
Keywords
cocatalysts; photocatalysis; single-atom-catalysts; tellurium nanosheets
Categories
Funding
- World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitectonics (MANA), MEXT (Japan)
- JSPS KAKENHI [JP18H02065]
- National Natural Science Foundation of China [21633004]
- Fundamental Research Funds for the Central Universities [NE2019103]
- Photo-excitonix Project at Hokkaido University
Ask authors/readers for more resources
The utilization of appropriate supports for constructing single-atom-catalysts is of vital importance to achieve high catalytic performances, as the strong mutual interactions between the atomically dispersed metal atoms and supports significantly influence their electronic properties. Herein, it is reported that atomic cobalt species (ACS) anchored 2D tellurium nanosheets (Te NS) can act as a highly active single-atom cocatalyst for boosting photocatalytic H(2)production and CO(2)reduction reactions under visible light irradiation, wherein Te NS serves as the ideal support material to bridge the light absorbers and ACS catalytic sites for efficient electron transfer. X-ray absorption near-edge structure spectroscopy reveals that the ACS are built by a Co center coordinated with five Co-O bonding, which are anchored on Te NS through one Co-Te bonding. The strong mutual interaction between the Te NS and ACS alters the electronic structure of Te NS, inducing the introduction of intermediate energy states, which act as trap sites to accommodate the photogenerated electrons for promoting photocatalytic reactions. This work may inspire further capability in designing other Te-based single-atom-catalysts for highly efficient solar energy conversion.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available