Ti<sub>3</sub>AlC<sub>2</sub> MAX/MXene for Hydrogen Generation via Photocatalytic Hydride Hydrolysis
Reducing dehydrogenation temperature while preserving high hydrogen generation capacity obstructs the hydrolysis of sodium borohydrides (NaBH<sub>4</sub>). The two-dimensional (2D) MAX phase of titanium aluminum carbide (Ti<sub>3</sub>AlC<sub>2</sub>) and MXene (T...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-02-01
|
| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/13/2/44 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Reducing dehydrogenation temperature while preserving high hydrogen generation capacity obstructs the hydrolysis of sodium borohydrides (NaBH<sub>4</sub>). The two-dimensional (2D) MAX phase of titanium aluminum carbide (Ti<sub>3</sub>AlC<sub>2</sub>) and MXene (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>) multilayers was investigated for hydrogen generation via NaBH<sub>4</sub> hydrolysis with and without light. The material was characterized using X-ray diffraction (XRD), Fourier transform infrared (FT-IR), transmission electron microscopy (TEM), high-resolution TEM (HR-TEM), scanning electron microscopy (SEM), and diffuse reflectance spectroscopy (DRS). The activity of Ti<sub>3</sub>AlC<sub>2</sub> was significantly enhanced by the integration of UV light radiation during hydrolysis. Ti<sub>3</sub>AlC<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> improved the dehydrogenation rates of NaBH<sub>4</sub> at ambient conditions and maintained high hydrogen generation rates (HGRs) over time compared to a conventional method. It exhibited a HGR of 200–300 mL·min<sup>−1</sup>·g<sup>−1</sup>. Photo-assisted hydrolysis over the catalyst can be maintained for several times at ambient temperature. The catalyst demonstrated effective performance even after five cycles of usage. |
|---|---|
| ISSN: | 2304-6740 |