Catalytic hydrogenation of nitrate on Cu-Pd supported on titanate nanotube and the experiment after aging, sulfide fouling and regeneration procedures

- Cu-Pd/TNTs were studied for the catalyst stability, aging, fouling and regeneration.
- TNTs can provide electrons easily so that can prevent the supported metals from being oxidized.
- XPS was used to characterize the ratio and oxidation state of elements on the catalyst surface.
- Heated NaBH4-saturated nitrogen gas was efficient to restore the activities of S-fouled catalyst.