IR study of active sites for n-heptane isomerization over MoO 3-ZrO2
The property of acidic sites on MoO3-ZrO2 was studied for n-heptane isomerization. A 2,6-lutidine IR study showed that the introduction of MoO3 on ZrO2 partially eliminated the absorbance band at 1605 cm-1 ascribed to Lewis acid sites corresponding to the presence of the monoclinic phase of ZrO2 and...
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my.utm.292252019-03-17T03:03:31Z http://eprints.utm.my/id/eprint/29225/ IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 Ruslan, Nurun Najwa Ahmad Fadzlillah, Nurrulhidayah Karim, Ainul Hakimah Abdul Jalil, Aishah Triwahyono, Sugeng QD Chemistry The property of acidic sites on MoO3-ZrO2 was studied for n-heptane isomerization. A 2,6-lutidine IR study showed that the introduction of MoO3 on ZrO2 partially eliminated the absorbance band at 1605 cm-1 ascribed to Lewis acid sites corresponding to the presence of the monoclinic phase of ZrO2 and developed several Brönsted and Lewis acid sites with different acidic strengths. MoO3-ZrO2 possesses a large number of relatively weak Lewis and Brönsted acid sites as well as strong acid sites. The active protonic acid sites in n-heptane isomerization were formed from molecular hydrogen through a spillover mechanism with the involvement of doublet bands at 1595 and 1580 cm-1 ascribed to the Lewis acid sites corresponding to the presence of the tetragonal phase of ZrO2. No catalytic activity of MoO3-ZrO2 for n-heptane isomerization was observed in the absence of the doublet bands at 1595 and 1580 cm-1 and hydrogen in the gas phase. Elsevier B.V. 2011-10 Article PeerReviewed Ruslan, Nurun Najwa and Ahmad Fadzlillah, Nurrulhidayah and Karim, Ainul Hakimah and Abdul Jalil, Aishah and Triwahyono, Sugeng (2011) IR study of active sites for n-heptane isomerization over MoO 3-ZrO2. Applied Catalysis A: General, 406 (1-2). pp. 102-112. ISSN 0926-860X http://dx.doi.org/10.1016/j.apcata.2011.08.014 DOI:10.1016/j.apcata.2011.08.014 |
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QD Chemistry Ruslan, Nurun Najwa Ahmad Fadzlillah, Nurrulhidayah Karim, Ainul Hakimah Abdul Jalil, Aishah Triwahyono, Sugeng IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 |
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The property of acidic sites on MoO3-ZrO2 was studied for n-heptane isomerization. A 2,6-lutidine IR study showed that the introduction of MoO3 on ZrO2 partially eliminated the absorbance band at 1605 cm-1 ascribed to Lewis acid sites corresponding to the presence of the monoclinic phase of ZrO2 and developed several Brönsted and Lewis acid sites with different acidic strengths. MoO3-ZrO2 possesses a large number of relatively weak Lewis and Brönsted acid sites as well as strong acid sites. The active protonic acid sites in n-heptane isomerization were formed from molecular hydrogen through a spillover mechanism with the involvement of doublet bands at 1595 and 1580 cm-1 ascribed to the Lewis acid sites corresponding to the presence of the tetragonal phase of ZrO2. No catalytic activity of MoO3-ZrO2 for n-heptane isomerization was observed in the absence of the doublet bands at 1595 and 1580 cm-1 and hydrogen in the gas phase. |
| format |
Article |
| author |
Ruslan, Nurun Najwa Ahmad Fadzlillah, Nurrulhidayah Karim, Ainul Hakimah Abdul Jalil, Aishah Triwahyono, Sugeng |
| author_facet |
Ruslan, Nurun Najwa Ahmad Fadzlillah, Nurrulhidayah Karim, Ainul Hakimah Abdul Jalil, Aishah Triwahyono, Sugeng |
| author_sort |
Ruslan, Nurun Najwa |
| title |
IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 |
| title_short |
IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 |
| title_full |
IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 |
| title_fullStr |
IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 |
| title_full_unstemmed |
IR study of active sites for n-heptane isomerization over MoO 3-ZrO2 |
| title_sort |
ir study of active sites for n-heptane isomerization over moo 3-zro2 |
| publisher |
Elsevier B.V. |
| publishDate |
2011 |
| url |
http://eprints.utm.my/id/eprint/29225/ http://dx.doi.org/10.1016/j.apcata.2011.08.014 |
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1643648252541665280 |
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13.211869 |