TY  - JOUR
N2  - 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
IS  - 48
KW  - Deionized water; Graphene; Hydrogen; Nanocomposites
KW  -  Atmospheric conditions; BET specific surface area; Environmental issues; Hybrid nanocomposites; Hydrogen adsorption; Intraparticle diffusion models; Pseudo-second-order kinetic models; Zeolitic imidazolate framework-8
KW  -  Gas adsorption
ID  - scholars14717
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083552771&doi=10.1016%2fj.ijhydene.2020.03.155&partnerID=40&md5=da47ab3eab0b4b36466cbf0fc275a6de
A1  - Arifin, N.F.T.
A1  - Yusof, N.
A1  - Nordin, N.A.H.M.
A1  - Jaafar, J.
A1  - Ismail, A.F.
A1  - Salleh, W.N.W.
A1  - Aziz, F.
JF  - International Journal of Hydrogen Energy
VL  - 46
Y1  - 2021///
N1  - cited By 9
TI  - An improved hybrid nanocomposites of rice husk derived graphene (GRHA)/Zeolitic imidazolate framework-8 for hydrogen adsorption
SP  - 24864
AV  - none
EP  - 24876
SN  - 03603199
PB  - Elsevier Ltd
ER  -