relation: https://khub.utp.edu.my/scholars/13192/
title: Influence of nickel loading on reduced graphene oxide-based nickel catalysts for the hydrogenation of carbon dioxide to methane
creator: Diyan Mohd Ridzuan, N.
creator: Shima Shaharun, M.
creator: Mun Lee, K.
creator: Ud Din, I.
creator: Puspitasari, P.
description: 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.
publisher: MDPI
date: 2020
type: Article
type: PeerReviewed
identifier:   Diyan Mohd Ridzuan, N. and Shima Shaharun, M. and Mun Lee, K. and Ud Din, I. and Puspitasari, P.  (2020) Influence of nickel loading on reduced graphene oxide-based nickel catalysts for the hydrogenation of carbon dioxide to methane.  Catalysts, 10 (5).   ISSN 20734344     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084213991&doi=10.3390%2fcatal10050471&partnerID=40&md5=00ff3d41f017eba5afc14f80a2f24c08
relation: 10.3390/catal10050471
identifier: 10.3390/catal10050471