Influence of the calcination temperature on the catalytic properties of Os/bentonite for glycerol hydrogenolysis

Hamzah, Noraini and Samad, Wan Zurina and Yarmo, Mohd Ambar (2017) Influence of the calcination temperature on the catalytic properties of Os/bentonite for glycerol hydrogenolysis. In: International Conference on X-Rays and Related Techniques in Research and Industry, ICXRI 2016, 17th-18th August, 2016, Dorsett Hotel, Putrajaya.

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Abstract

Selective catalytic hydrogenolysis of glycerol on Os/bentonite catalyst represents a low cost and green route for 1,2-propanediol which is major community chemical used in the production of antifreeze functional fluids, paints and humectants. The experimental results combined with the characterization studies using TPR, FESEM-EDX and XPS techniques revealed that the optimum calcination temperature was 300 °C with glycerol conversion obtained was 80.7%. This might be due to the presence of Os metal species as an active site with binding energy(BE) of Os 4f at 51.2 eV in XPS analysis. TPR profile also shows two obvious peak at reduction temperature of 95 °C and 140 °C represent for Os3+ and Os4+ species respectively. The presence of Os3+ and Os4+ species were also confirmed by XPS analysis.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	7639/48120
Uncontrolled Keywords:	Calcination Temperature, Hydrogenolysis Glycerol, Os/Bentonite Catalyst
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Chemistry
Depositing User:	Dr Wan Zurina Samad
Date Deposited:	17 Jul 2017 11:04
Last Modified:	21 Jul 2017 09:30
URI:	http://irep.iium.edu.my/id/eprint/48120

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