Synthesis of nanoporous graphene oxide adsorbents by freeze-drying or microwave radiation: Characterization and hydrogen storage properties

2015 ◽  
Vol 40 (21) ◽  
pp. 6844-6852 ◽  
Author(s):  
Nikolaos Kostoglou ◽  
Vasilios Tzitzios ◽  
Athanassios G. Kontos ◽  
Konstantinos Giannakopoulos ◽  
Christos Tampaxis ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Microwave Radiation ◽  
Freeze Drying ◽  
Hydrogen Storage Properties ◽  
Nanoporous Graphene ◽  
Storage Properties

Microwave Synthesis of MOFs/Graphene Oxide Composites and Hydrogen Storage Properties

2016 ◽  
Vol 852 ◽  
pp. 835-840 ◽  
Author(s):  
Tian Bao Yang ◽  
Li Xian Sun ◽  
Fen Xu ◽  
Zi Qiang Wang
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Parent Material ◽  
X Ray Diffraction ◽  
Hydrogen Storage Properties ◽  
Transmission Electron ◽  
Metal Organic ◽  
Oxide Composites ◽  
Storage Properties

Metal-organic frameworks (MOFs: copper containing CuBTC)-graphene oxide (GO) composite (CG) was synthesized using microwave heating. The parent material and the composite were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), nitrogen sorption, scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (HRTEM) and Raman spectroscopy. Then their hydrogen storage properties were systematically tested. The composite material CG shows a remarkable H2 capacity up to 2.43 wt% (28.6% increases vs. CuBTC) and higher surface area and pore volume compared to the neat CuBTC. And the particle size of CG is down to nanometer scale.

Revealing the Role of Defects in Graphene Oxide on Evolution of Magnesium Nanocrystals and the Resulting Effects on Hydrogen Storage

2021 ◽  
Author(s):  
Dong Ju Han ◽  
Sangtae Kim ◽  
Eun Seon Cho
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Diffusion Path ◽  
Hydrogen Atoms ◽  
Hydrogen Storage Properties ◽  
Intensive Research ◽  
Size And Morphology ◽  
Storage Properties

The hydrogen storage properties of magnesium (Mg) considerably rely on the size and morphology of Mg particles that determine the diffusion path for hydrogen atoms. Despite the intensive research on...

Synthesis of MIL-125/Graphene Oxide Composites and Hydrogen Storage Properties

2017 ◽  
Vol 727 ◽  
pp. 683-687 ◽  
Author(s):  
Tian Bao Yang ◽  
Li Xian Sun ◽  
Fen Xu ◽  
Zi Qiang Wang ◽  
Yong Jin Zou ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Parent Material ◽  
X Ray Diffraction ◽  
Hydrogen Storage Properties ◽  
Transmission Electron ◽  
Metal Organic ◽  
Ft Ir ◽  
Storage Properties

Metal-organic frameworks (MOFs: MIL-125)-graphene oxide (GO) composite (MO) was synthesized by solvothermal method. All the materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy. Then their hydrogen storage properties were systematically tested under 1 bar and 77K. The composite material MO-1 possesses higher surface area than the parent material MIL-125 and shows a remarkable H2 capacity up to 2.5 wt% (38% increases vs. MIL-125).

Uncovering the encapsulation effect of reduced graphene oxide sheets on the hydrogen storage properties of palladium nanocubes

Nanoscale ◽  
2021 ◽  
Author(s):  
Jinseok Koh ◽  
Eunho Choi ◽  
Kouji Sakaki ◽  
Daeho Kim ◽  
Seung Min Han ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Size Dependence ◽  
Hydrogen Sorption ◽  
Sorption Behaviour ◽  
Hydrogen Storage Properties ◽  
Reduced Graphene ◽  
Storage Properties ◽  
Graphene Oxide Sheets

Pd nanocubes are constrained by rGO sheets to significantly change the hydrogen sorption behaviour, while showing a size dependence.

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