共 121 条
Facile synthesis and electrochemical hydrogen storage of bentonite/TiO2/Au nanocomposite
被引:34
作者:
Eslamipanah, Mahtab
[1
]
Jaleh, Babak
[1
]
Mohazzab, Bahareh Feizi
[1
]
Khazalpour, Sadegh
[2
]
Nasrollahzadeh, Mahmoud
[3
]
Shokouhimehr, Mohammadreza
[4
]
机构:
[1] Bu Ali Sina Univ, Fac Sci, Dept Phys, Hamadan 65174, Hamadan, Iran
[2] Bu Ali Sina Univ, Fac Chem, Hamadan 65174, Hamadan, Iran
[3] Univ Qom, Fac Sci, Dept Chem, Qom 3716146611, Iran
[4] Seoul Natl Univ, Res Inst Adv Mat, Dept Mat Sci & Engn, Seoul 08826, South Korea
关键词:
Bentonite;
Laser ablation in liquid;
Gold nanoparticles;
Hydrogen storage;
REDUCED GRAPHENE OXIDE;
GOLD NANOPARTICLES;
AU NANOPARTICLES;
ANTIBACTERIAL ACTIVITY;
TIO2;
NANOPARTICLES;
ASSISTED SYNTHESIS;
METHYL VIOLET;
SPILLOVER;
ADSORPTION;
COMPOSITE;
D O I:
10.1016/j.ijhydene.2020.09.044
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this study, the electrochemical hydrogen storage of bentonite composites containing TiO2 and Au nanoparticles (NPs) has been investigated by cyclic voltammetry (CV) analysis. TiO2 NPs were first deposited on the bentonite substrate by reflux technique. Au NPs were then prepared by laser ablation in liquid (LAL) method under different laser irradiation times (6, 12, and 18 min), and utilized in the decoration of bentonite/TiO2 nanocomposite by physical mixing. X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, and elemental mapping were carried out in the characterization of the prepared bentonite/TiO2/Au nanocomposite. The surface and chemical properties of the acquired nanocomposite were analyzed by BrunauerEmmett-Teller and Fourier transform infrared spectroscopy, respectively. Electrochemical measurement was performed on stainless steel mesh prefabricated electrodes in 1 M KOH electrolyte solution. The B-T/Au nanocomposite prepared under 12 min laser irradiation displayed the highest hydrogen storage capacity (15 Cg(-1)). (c) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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页码:33771 / 33788
页数:18
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