Unformatted text preview: e of Lewis acid site was observed. The weak N –H -1 -1 -1 stretching was indicated by the presence of a vibration at 1625 cm . Bands at 1528 cm and 1588 cm showed the presence of the C=C double bond of the aromatic ring from the 2 -amino pyridine. The -1 presence of the C–N bond was evidenced from the 1663 cm vibration.
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N RHAC-2-AP-Fe MAT-P17 GENERATION OF HYDROGEN MOLYBDENUM BRONZE FROM HYDROG EN OVER Pt/MoO3
2 Sugeng Triwahyono, Aishah Abdul Jalil, Sharifah Najiha Timmiati, Nurun Najwa Ruslan, Ainul 2 Hakimah Karim and Nurrulhidayah Ahmad Fadzlillah 1 1 2 2 Department of Chemical Eng., Faculty of Chemical and Natural Resources Engineering, Univer siti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia 2 Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia E-mail: [email protected] The acidity of hydrogen molybdenum bronze (HxMoO3) over platinum supported molybdenum oxide (Pt/MoO3) was studied by pyridine and carbon monooxide preadsorbed FTIR spectroscopy. The MoO 3 sample was prepared by calcination of H2MoO4 at 673 K for 3 h. The Pt/MoO 3 was prepared by impregnation of MoO3 with an aqueous solution of H2PtCl6 followed by calcination at 673 K in air. The 2 surface areas of MoO3 and Pt/MoO3 were 58 and 65 m /g and the content of Pt was 0.5 wt %. Pyridine and carbon monooxide preadsorbed FTIR showed that the reduction of Pt/MoO 3 at and above 473 K generated strong Lewis acid sites. The formation of the Lewis acid sites caused by interaction of surface catalyst with hydrogen indicated the formation of hydrogen molybdenum bronze over platinum supported molybdenum oxide. The activity of hydrogen molybdenum bronze was examined on the n heptane isomerization at 523 K in the presence and absence of hydrogen. 1 162 3rd ICYC 2010 Universiti Sains Malaysia MAT-P18 23rd-25th June 2010 THERMAL DEGRADATION OF NATIVE AND HYDROLYZED SODA LIGNINS EXTRACTED FROM OIL PALM EMPTY FRUIT BUNCH Ebrahim Akbarzadeh, Mohamad Nasir Mohamad Ibrahim and Afidah Abdul Rahim School of Chemical Sciences, University Sains Malaysia, 11800 Pulau Pinang, Mala...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.
- Spring '11