Preparation of palladium nanoparticles supported on graphene using strong electrostatic adsorption technique for bio-fuel conversion

Name: Benjaporn Kreatananchai

Organization : Chiang Mai University. Faculty of Engineering

Name: Konlayutt Punyawudho

Organization : Chiang Mai University. Faculty of Engineering

Email : konlayutt.p@cmu.ac.th

ThaSH: Nanoparticles

ThaSH: Palladium catalysts

ThaSH: Graphene

ThaSH: Heterogeneous catalysis

Abstract: The palladium nanoparticles supported on graphene (5 wt. percent Pd/G) was prepared using the Strong Electrostatic Adsorption (SEA) technique for the deoxygenation process. The nanoparticle Pd metals were reduced under hydrogen environment. The catalysts were characterized by X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). The average metal Pd nanoparticle size was approximately 3.0 nm and gave a high dispersion onto graphene. The catalysts were used to convert stearic acid to the bio-fuel in a semi-batch reactor at pressure of 5 bars and temperature of 300 degrees. The amounts of 5 wt. percent Pd/G catalysts (i.e., 0.25, 0.50 and 1.00 grams) for bio-fuel conversion were evaluated. The results indicated that the greater amount of catalysts yielded the more gas products, whereby the lower amount of catalysts produced the more liquid products. Moreover, the liquid products from deoxygenation process were examined by gas chromatography mass spectrometry (GC-MS). It was found that 5 wt. percent Pd/graphene effectively facilitated the conversion of fatty acid (i.e., stearic acid) to be mainly the alkane hydrocarbon (i.e., Heptadecane - C17H36) according to the broken bond of carboxylic group. Furthermore, the conversion also depended on mass of catalysts, where higher mass of catalysts yielded greater Heptadecane.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2020

Modified: 2023-12-20

Issued: 2023-12-20

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BibliograpyCitation : In the Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn in association, Thammasat University Faculty of Science and Technology. The Pure and Applied Chemistry International Conference 2020 (PACCON 2020) (CS7-12). Bangkok : Thammasat University

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