TY - JOUR ID - scholars13192 TI - Influence of nickel loading on reduced graphene oxide-based nickel catalysts for the hydrogenation of carbon dioxide to methane N1 - cited By 21 N2 - In this study, a series of novel nickel catalysts supported on reduced graphene oxide nanosheets (Ni/rGO) with Ni loadings of 10, 15 and 20 wt were successfully synthesized via the incipient wetness impregnation method. The physicochemical properties of the catalysts and rGO support were thoroughly characterized by thermogravimetric analyser, X-ray diffraction, fouriertransform infrared spectroscopy, Raman spectroscopy, N2 adsorption-desorption, temperature programmed reduction, temperature programmed CO2 desorption and field emission scanning electron microscopy with energy dispersive X-ray spectroscopy. The properties of the catalysts are correlated to its catalytic activity for CO2 methanation which were investigated using three-phase slurry reactor at low temperature and pressure of 240 °C and 10 bar, respectively. Among the three catalysts of different Ni loading, Ni15/rGO shows the highest activity of 51 conversion of CO2 with total selectivity towards CH4. N2-physisorption and CO2-TPD analysis suggest that high catalytic performance of Ni15/rGO is attributed to the high surface area, strong basic sites and special support effect of rGO in anchoring the active metal. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. IS - 5 AV - none VL - 10 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084213991&doi=10.3390%2fcatal10050471&partnerID=40&md5=00ff3d41f017eba5afc14f80a2f24c08 JF - Catalysts A1 - Diyan Mohd Ridzuan, N. A1 - Shima Shaharun, M. A1 - Mun Lee, K. A1 - Ud Din, I. A1 - Puspitasari, P. SN - 20734344 PB - MDPI Y1 - 2020/// ER -