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Accepted (AM)Open Access (License Unspecified), Open
Journal article
Porous structures in stacked, crumpled and pillared graphene-based 3D materials
Carbon (New York), v 66, pp 476-484
01 Jan 2014
PMID: 26478597
Abstract
Graphene, an atomically thin material with the theoretical surface area of 2600 m(2) g(-1), has great potential in the fields of catalysis, separation, and gas storage if properly assembled into functional 3D materials at large scale. In ideal non-interacting ensembles of non-porous multilayer graphene plates, the surface area can be adequately estimated using the simple geometric law similar to 2600 m(2) g(-1)/N, where N is the number of graphene sheets per plate. Some processing operations, however, lead to secondary plate-plate stacking, folding, crumpling or pillaring, which give rise to more complex structures. Here we show that bulk samples of multilayer graphene plates stack in an irregular fashion that preserves the 2600/N surface area and creates regular slot-like pores with sizes that are multiples of the unit plate thickness. In contrast, graphene oxide deposits into films with massive area loss (2600-40 m(2) g(-1)) due to nearly perfect alignment and stacking during the drying process. Pillaringgraphene oxide sheets by co-deposition of colloidal-phase particle-based spacers has the potential to partially restore the large monolayer surface. Surface areas as high as 1000 m(2) g(-1) are demonstrated here through colloidal-phase deposition of graphene oxide with water-dispersible aryl-sulfonated ultrafine carbon black as a pillaring agent. (C) 2013 Elsevier Ltd. All rights reserved.
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Details
- Title
- Porous structures in stacked, crumpled and pillared graphene-based 3D materials
- Creators
- Fei Guo - Brown UniversityMegan Creighton - Brown UniversityYantao Chen - Brown UniversityRobert Hurt - Brown UniversityIndrek Kuelaots - Brown University
- Publication Details
- Carbon (New York), v 66, pp 476-484
- Publisher
- Elsevier
- Number of pages
- 9
- Grant note
- P42 ES013660 / National Institute for Environmental Health Sciences; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Environmental Health Sciences (NIEHS) P42ES013660 / NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Environmental Health Sciences (NIEHS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000327575200053
- Scopus ID
- 2-s2.0-84886799655
- Other Identifier
- 991021229887904721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary