We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
One-dimensional single atom arrays on ferroelectric nanosheets for enhanced CO<sub>2</sub> photoreduction.
- Authors
Liu, Lizhen; Hu, Jingcong; Ma, Zhaoyu; Zhu, Zijian; He, Bin; Chen, Fang; Lu, Yue; Xu, Rong; Zhang, Yihe; Ma, Tianyi; Sui, Manling; Huang, Hongwei
- Abstract
Single-atom catalysts show excellent catalytic performance because of their coordination environments and electronic configurations. However, controllable regulation of single-atom permutations still faces challenges. Herein, we demonstrate that a polarization electric field regulates single atom permutations and forms periodic one-dimensional Au single-atom arrays on ferroelectric Bi4Ti3O12 nanosheets. The Au single-atom arrays greatly lower the Gibbs free energy for CO2 conversion via Au-O=C=O-Au dual-site adsorption compared to that for Au-O=C=O single-site adsorption on Au isolated single atoms. Additionally, the Au single-atom arrays suppress the depolarization of Bi4Ti3O12, so it maintains a stronger driving force for separation and transfer of photogenerated charges. Thus, Bi4Ti3O12 with Au single-atom arrays exhibit an efficient CO production rate of 34.15 µmol·g−1·h−1, ∼18 times higher than that of pristine Bi4Ti3O12. More importantly, the polarization electric field proves to be a general tactic for the syntheses of one-dimensional Pt, Ag, Fe, Co and Ni single-atom arrays on the Bi4Ti3O12 surface. The authors report a study preparing single atom (M = Pt, Ag, Fe, Co, and Ni) arrays on Au/Bi4Ti3O12 nanosheets using electric field polarization techniques. Photocatalytic CO2 reduction is shown to proceed effectively over Au/Bi4Ti3O12.
- Subjects
POLARIZATION (Electricity); GIBBS' free energy; PHOTOREDUCTION; ELECTRON configuration; ATOMS; FERROELECTRIC polymers
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-44493-4