relation: https://khub.utp.edu.my/scholars/14717/
title: An improved hybrid nanocomposites of rice husk derived graphene (GRHA)/Zeolitic imidazolate framework-8 for hydrogen adsorption
creator: Arifin, N.F.T.
creator: Yusof, N.
creator: Nordin, N.A.H.M.
creator: Jaafar, J.
creator: Ismail, A.F.
creator: Salleh, W.N.W.
creator: Aziz, F.
description: In this work, hybrid nanocomposites rice husk derived graphene (GRHA) and zeolitic imidazolate framework-8 (ZIF-8) were prepared for hydrogen adsorption. The main contribution of this study is the simplification of the synthesized GRHA/ZIF-8 hybrid nanocomposites. Besides that, the use of synthesized graphene from rice husk (RH) could help in overcoming environmental issue since disposal of RH is rather challenging. GRHA was obtained through calcining rice husk ash (RHA) at 900 °C for 2 h in a muffle furnace at atmospheric condition while the nanocomposite of GRHA/ZIF-8 was produced in free solvent condition using deionized water at room temperature for only 1 h. The N2 adsorption-desorption indicated a type I isotherm. Interestingly, it was found that the BET specific surface area (BETSSA) of GRHA/ZIF-8 showed enhancement up to 3 times higher as compared to pristine GRHA with the addition of 0.2 g of GRHA. From the experimental data, the adsorption of H2 by nanocomposite GRHA/ZIF-8 obeyed the pseudo-second order kinetic model and intraparticle diffusion model with R2 value up to 0.9890 and 0.8087 respectively at 12 bar. Moreover, the GRHA/ZIF-8 possessed highest hydrogen adsorption of 31.84 mmol/g at 12 bar. These impressive results are justified by the combination of ZIF-8's microporosity and GRHA's mesoporosity. © 2020 Hydrogen Energy Publications LLC
publisher: Elsevier Ltd
date: 2021
type: Article
type: PeerReviewed
identifier:   Arifin, N.F.T. and Yusof, N. and Nordin, N.A.H.M. and Jaafar, J. and Ismail, A.F. and Salleh, W.N.W. and Aziz, F.  (2021) An improved hybrid nanocomposites of rice husk derived graphene (GRHA)/Zeolitic imidazolate framework-8 for hydrogen adsorption.  International Journal of Hydrogen Energy, 46 (48).  pp. 24864-24876.  ISSN 03603199     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083552771&doi=10.1016%2fj.ijhydene.2020.03.155&partnerID=40&md5=da47ab3eab0b4b36466cbf0fc275a6de
relation: 10.1016/j.ijhydene.2020.03.155
identifier: 10.1016/j.ijhydene.2020.03.155