TY - JOUR VL - 400 AV - none Y1 - 2015/// KW - Biofuels; Catalyst activity; Catalysts; Fluorine compounds; Ions; Isomerization; Isomers; Oleic acid; Oxalic acid; Palladium compounds KW - Biofuel production; Functionalizations; Hydrodeoxygenation; Oxalate complexes; Palladium catalyst; Specific surface area and porosities; Supported palladium catalysts; Supported Pd catalysts KW - Catalyst supports PB - Elsevier A1 - Ayodele, O.B. A1 - Farouk, H.U. A1 - Mohammed, J. A1 - Uemura, Y. A1 - Daud, W.M.A.W. SP - 179 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923924162&doi=10.1016%2fj.molcata.2015.01.033&partnerID=40&md5=df8ec5a29760f3803e7e7fcc337f6d1d EP - 186 N2 - In this study, two different zeolite (ZLT) supported palladium catalysts (Pd/Zs) of varying acidity were synthesized, characterized and tested for biofuel production. The first Pd/Z was synthesized via the incorporation of palladium oxalate complex (PdOxC) prepared from the functionalization of H2PdCl4 with oxalic acid at pH 5.3 into ZLT. The PdOxC was further modified with drops of HF until pH 3.7 and incorporated into ZLT to synthesize zeolite supported fluoride ion modified PdOxC catalyst (FPd/Z). Their characterization results showed that there is considerable crystallinity loss in Pd/Z, while FPd/Z showed drastic crystallinity loss according to the SEM and XRD results. In addition, the specific surface area and porosity of ZLT increased from 202 m2/g and 0.13 cm3/g to 371 m2/g and 0.23 cm3/g in Pd/Z, and 427 m2/g and 0.29 cm3/g in FPd/Z catalysts, respectively. Pd/Z catalyst produces 56 n-C18H38 and 11 iso-C18H38, while FPd/Z produces 58 n-C18H38 and 28 iso-C18H38 in the hydrodeoxygenation (HDO) and isomerization (ISO) steps, respectively. The enhancements in the catalysts properties are due to the acidic effect of OxA via the incorporation of PdOxC, while the additional enhancements in the properties and the ISO activity of FPd/Z was ascribed to the acidic effect of fluoride ion modification. It is obvious that OxA functionalization and subsequent fluoride ion modification are highly invaluable toward biofuel production. © 2015 Elsevier Inc. All rights reserved. ID - scholars5957 N1 - cited By 13 TI - Effect of precursor acidity on zeolite supported Pd catalyst properties and hydrodeoxygenation activity for the production of biofuel JF - Journal of Molecular Catalysis A: Chemical SN - 13811169 ER -