Fe Nanocatalysts Supported on Dealuminated ZSM-5 for Efficient Decomposition of Ammonia to COx-Free Hydrogen
Hu, Z; Chen, Lei; Weng, CC; Yuan, ZY
| HERO ID | 4745595 |
|---|---|
| In Press | No |
| Year | 2018 |
| Title | Fe Nanocatalysts Supported on Dealuminated ZSM-5 for Efficient Decomposition of Ammonia to COx-Free Hydrogen |
| Authors | Hu, Z; Chen, Lei; Weng, CC; Yuan, ZY |
| Journal | ChemistrySelect |
| Volume | 3 |
| Issue | 16 |
| Page Numbers | 4439-4447 |
| Abstract | A series of dealuminated ZSM-5 zeolite (deAlZSM-5) supported Fe-based catalysts are prepared by a modified solid-state ion exchange method, in which the HZSM-5 zeolite is dealuminated by concentrated HNO3 and subsequently ground with ferric nitrate. The physicochemical properties of the resultant Fe/deAlZSM-5 catalysts are characterized by XRD, N-2 sorption, TEM, H-2-TPR and NH3-TPD techniques. It is revealed that the Fe species are highly dispersed in the deAlZSM-5, and would be transformed into elemental Fe nanoparticles after reduction by H-2. Due to the confinement effect of ZSM-5 zeolite, the Fe/deAlZSM-5 catalysts exhibit high catalytic activity and excellent stability for NH3 decomposition. At 650 degrees C, about 100% NH3 conversion can be achieved over the 9%Fe/deAlZSM-5 catalysts for 50 h time-on-stream, demonstrating a very promising catalyst system in NH3 decomposition. |
| Doi | 10.1002/slct.201800785 |
| Wosid | WOS:000431626800044 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:CHEMISTRYSELECT 2365-6549 |
| Is Public | Yes |
| Keyword | ammonia decomposition; dealumninated zeolite; Fe/ZSM-5; hydrogen; nanocatalysts |