The effect of ethanedioic acid (EdA) functionalization on Al2O3 supported Ni catalyst was studied on the hydrodeoxygenation (HDO),isomerization,kinetics and Arrhenius parameters of octadec-9-enoic acid (OA) into biofuel in this report.This was achieved via synthesis of two catalysts;the first,nickel alumina catalyst (Ni/Al2O3) was via the incorporation of inorganic Ni precursor into Al203;the second was via the incorporation nickel oxalate (NiOx) prepared by functionalization of Ni with EdA into Al2O3 to obtain organometallic NiOx/Al2O3 catalyst.Their characterization results showed that Ni species present in Ni/Al2O3 and NiOx/Al2O3 were 8.2％ and 9.3％,respectively according to the energy dispersive X-ray result.NiOx/Al2O3 has comparably higher Ni content due to the EdA functionalization which also increases its acidity and guarantees high Ni dispersion with weaker metal-support-interaction leading to highly reducible Ni as seen in the X-ray diffraction,X-ray photoelectron spectroscopy,TPR and Raman spectroscopy results.Their activities tested on the HDO of OA showed that NiOx/Al2O3 did not only display the best catalytic and reusability abilities,but it also possesses isomerization ability due to its increased acidity.The NiOx/Al2O3 also has the highest rate constants evaluated using pseudo-first-order kinetics,but the least activation energy of 176 kJ/mol in the biofuel formation step compared to 244 kJ/mol evaluated when using Ni/Al2O3.The result is promising for future feasibility studies toward commercialization of catalytic HDO of OA into useful biofuel using organometallic catalysts.