Relationship between surface property and catalytic application of amorphous NiP/Hβ catalyst for n-hexane isomerization
| Autor: | Zunbin Duan, Jinshe Chen, Lijun Zhu, Daohong Xia, Zhaoyang Song, Yulu Zhou, Yuzhi Xiang |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
General Physics and Astronomy Nanoparticle chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Catalysis chemistry.chemical_compound Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Sulfur 0104 chemical sciences Surfaces Coatings and Films Amorphous solid Hexane Crystallography Chemical engineering chemistry engineering NIP Noble metal 0210 nano-technology Isomerization |
| Zdroj: | Applied Surface Science. 425:448-460 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2017.07.019 |
| Popis: | The amorphous NiP nanoparticles were synthesized and a novel amorphous NiP/Hβ catalyst was prepared successfully further. Due to the superior surface property of amorphous NiP/Hβ catalyst, it exhibited good catalytic application for n-hexane isomerization. The catalytic activity of amorphous NiP/Hβ catalyst was close to that of the prepared Pt/Hβ sample, and better than that of commercial catalyst and crystalline Ni 2 P/Hβ catalyst. What's more, the amorphous NiP/Hβ catalyst shows high resistance to different sulfur compounds and water on account of its unique surface property. The effect of loading amounts on surface property and catalytic performance was investigated, and the structure-function relationship among them was studied ulteriorly. The results demonstrate that loading amounts have effect on textural property and surface acid property, which further affect the catalytic performance. The 10 wt.% NiP/Hβ sample has appropriate pore structure and acid property with uniformly dispersed NiP nanoparticles on surface, which is helpful for providing suitable synergistic effect. The effects of reaction conditions on surface reactions and the mechanism for n-hexane isomerization were investigated further. Based on these results, the amorphous NiP/Hβ catalyst with superior surface property probably pavesa way to overcome the drawbacks of traditional noble metal catalyst, which shows good catalytic application prospects. |
| Databáze: | OpenAIRE |
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