Abstract
A novel multiscale pore structure material is firstly synthesized by means of the MOF confined in ordered macroporous-mesoporous-TiO2 (FeCoNi-MOF@TiO2). We have successfully achieved that three-scale ordered porous structures are integrated into one material, and the porous sizes are 400 nm, 5.1 nm and 3.4 nm, respectively. A photo-based electrocatalytic OER catalytic system was designed, and the FeCoNi-MOF@TiO2 as a catalyst exhibits high catalytical activity for OER under the irradiation of UV light. The electrons of macroporous-mesoporous-TiO2 are excited and transferred to the loaded FeCoNi-MOF, when the macroporous-mesoporous-TiO2 absorbs the UV light, which can improve the conductivity of the FeCoNi-MOF. The photo-induced electron of macroporous-mesoporous-TiO2 significantly boosts the electrocatalytic active of FeCoNi-MOF. These results provide a promising route on enhancing the catalytic activity of MOFs in electrocatalytic reaction.
| Original language | English |
|---|---|
| Pages (from-to) | 125-133 |
| Number of pages | 9 |
| Journal | Materials Today Energy |
| Volume | 13 |
| DOIs | |
| State | Published - Sep 2019 |
| Externally published | Yes |
Keywords
- Conductivity
- MOF
- Oxygen evolution reaction
- TiO
- Ultraviolet light