Abstract
A novel, one-step, wet-free, environmental friendly and high-yield method for producing few-layer graphene powders with large surface areas (up to 800 m2/g) and narrow nanopore sizes (0.7-0.8 nm) using plasma-induced exfoliation of natural graphite is presented. Advanced characterization techniques were employed, including scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction and N2 gas adsorption/desorption measurements at 77 K, to investigate the morphological, elemental, structural and textural/porosity properties of these nanomaterials. Fully reversible H2 gas adsorption/desorption isotherms with maximum gravimetric capacities of up to ∼2 wt.% at 77 K and ∼60 bar are reported here. The H2 storage performance at 77 K is well correlated with certain textural features such as specific surface area and microporosity. The results of this work provide a valuable feedback for further research on plasma-processed graphene-based materials towards efficient H2 storage via cryo-adsorption.
| Original language | English |
|---|---|
| Pages (from-to) | 482-487 |
| Number of pages | 6 |
| Journal | Microporous and Mesoporous Materials |
| Volume | 225 |
| DOIs | |
| Publication status | Published - 1 May 2016 |
| Externally published | Yes |
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Keywords
- Adsorption
- Graphene
- Hydrogen storage
- Nanoporous powders
- Plasma
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
Cite this
Few-layer graphene-like flakes derived by plasma treatment : A potential material for hydrogen adsorption and storage. / Kostoglou, Nikolaos; Tarat, Afshin; Walters, Ian; Ryzhkov, Vladislav; Tampaxis, Christos; Charalambopoulou, Georgia; Steriotis, Theodore; Mitterer, Christian; Rebholz, Claus.
In: Microporous and Mesoporous Materials, Vol. 225, 01.05.2016, p. 482-487.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Few-layer graphene-like flakes derived by plasma treatment
T2 - A potential material for hydrogen adsorption and storage
AU - Kostoglou, Nikolaos
AU - Tarat, Afshin
AU - Walters, Ian
AU - Ryzhkov, Vladislav
AU - Tampaxis, Christos
AU - Charalambopoulou, Georgia
AU - Steriotis, Theodore
AU - Mitterer, Christian
AU - Rebholz, Claus
PY - 2016/5/1
Y1 - 2016/5/1
N2 - A novel, one-step, wet-free, environmental friendly and high-yield method for producing few-layer graphene powders with large surface areas (up to 800 m2/g) and narrow nanopore sizes (0.7-0.8 nm) using plasma-induced exfoliation of natural graphite is presented. Advanced characterization techniques were employed, including scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction and N2 gas adsorption/desorption measurements at 77 K, to investigate the morphological, elemental, structural and textural/porosity properties of these nanomaterials. Fully reversible H2 gas adsorption/desorption isotherms with maximum gravimetric capacities of up to ∼2 wt.% at 77 K and ∼60 bar are reported here. The H2 storage performance at 77 K is well correlated with certain textural features such as specific surface area and microporosity. The results of this work provide a valuable feedback for further research on plasma-processed graphene-based materials towards efficient H2 storage via cryo-adsorption.
AB - A novel, one-step, wet-free, environmental friendly and high-yield method for producing few-layer graphene powders with large surface areas (up to 800 m2/g) and narrow nanopore sizes (0.7-0.8 nm) using plasma-induced exfoliation of natural graphite is presented. Advanced characterization techniques were employed, including scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction and N2 gas adsorption/desorption measurements at 77 K, to investigate the morphological, elemental, structural and textural/porosity properties of these nanomaterials. Fully reversible H2 gas adsorption/desorption isotherms with maximum gravimetric capacities of up to ∼2 wt.% at 77 K and ∼60 bar are reported here. The H2 storage performance at 77 K is well correlated with certain textural features such as specific surface area and microporosity. The results of this work provide a valuable feedback for further research on plasma-processed graphene-based materials towards efficient H2 storage via cryo-adsorption.
KW - Adsorption
KW - Graphene
KW - Hydrogen storage
KW - Nanoporous powders
KW - Plasma
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UR - http://www.scopus.com/inward/citedby.url?scp=84958064402&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2016.01.027
DO - 10.1016/j.micromeso.2016.01.027
M3 - Article
VL - 225
SP - 482
EP - 487
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
ER -