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Adsorption-Induced Expansion of Graphene Oxide Frameworks: Observation by in Situ Neutron Diffraction
[Image: see text] We have investigated adsorption-induced deformation in graphene oxide framework materials (GOFs) using neutron diffraction at sample pressures up to 140 bar. GOFs, made by the solvothermal reaction of graphite oxide and benzene-1,4-diboronic acid, are a suitable candidate for defor...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854554/ https://www.ncbi.nlm.nih.gov/pubmed/31737827 http://dx.doi.org/10.1021/acsomega.9b02589 |
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author | Schaeperkoetter, Joseph C. Connolly, Matthew J. Buck, Zachary N. Taub, Haskell Kaiser, Helmut Wexler, Carlos |
author_facet | Schaeperkoetter, Joseph C. Connolly, Matthew J. Buck, Zachary N. Taub, Haskell Kaiser, Helmut Wexler, Carlos |
author_sort | Schaeperkoetter, Joseph C. |
collection | PubMed |
description | [Image: see text] We have investigated adsorption-induced deformation in graphene oxide framework materials (GOFs) using neutron diffraction at sample pressures up to 140 bar. GOFs, made by the solvothermal reaction of graphite oxide and benzene-1,4-diboronic acid, are a suitable candidate for deformation studies due to their narrow (∼1 nm), monodispersed, slit-shaped pores whose width can be measured by diffraction techniques. We have observed, in situ, a monotonic expansion of the slit width with increasing pressure upon adsorption of xenon, methane, and hydrogen under supercritical conditions. The expansion of ∼4% observed for xenon at a pressure of 48 bar is the largest deformation yet reported for supercritical adsorption on a carbonaceous material. We find that the expansion of the three gases can be mapped onto a common curve based solely on their Lennard-Jones parameters, in a manner similar to a law of corresponding states. |
format | Online Article Text |
id | pubmed-6854554 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-68545542019-11-15 Adsorption-Induced Expansion of Graphene Oxide Frameworks: Observation by in Situ Neutron Diffraction Schaeperkoetter, Joseph C. Connolly, Matthew J. Buck, Zachary N. Taub, Haskell Kaiser, Helmut Wexler, Carlos ACS Omega [Image: see text] We have investigated adsorption-induced deformation in graphene oxide framework materials (GOFs) using neutron diffraction at sample pressures up to 140 bar. GOFs, made by the solvothermal reaction of graphite oxide and benzene-1,4-diboronic acid, are a suitable candidate for deformation studies due to their narrow (∼1 nm), monodispersed, slit-shaped pores whose width can be measured by diffraction techniques. We have observed, in situ, a monotonic expansion of the slit width with increasing pressure upon adsorption of xenon, methane, and hydrogen under supercritical conditions. The expansion of ∼4% observed for xenon at a pressure of 48 bar is the largest deformation yet reported for supercritical adsorption on a carbonaceous material. We find that the expansion of the three gases can be mapped onto a common curve based solely on their Lennard-Jones parameters, in a manner similar to a law of corresponding states. American Chemical Society 2019-10-28 /pmc/articles/PMC6854554/ /pubmed/31737827 http://dx.doi.org/10.1021/acsomega.9b02589 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Schaeperkoetter, Joseph C. Connolly, Matthew J. Buck, Zachary N. Taub, Haskell Kaiser, Helmut Wexler, Carlos Adsorption-Induced Expansion of Graphene Oxide Frameworks: Observation by in Situ Neutron Diffraction |
title | Adsorption-Induced Expansion of Graphene Oxide Frameworks:
Observation by in Situ Neutron Diffraction |
title_full | Adsorption-Induced Expansion of Graphene Oxide Frameworks:
Observation by in Situ Neutron Diffraction |
title_fullStr | Adsorption-Induced Expansion of Graphene Oxide Frameworks:
Observation by in Situ Neutron Diffraction |
title_full_unstemmed | Adsorption-Induced Expansion of Graphene Oxide Frameworks:
Observation by in Situ Neutron Diffraction |
title_short | Adsorption-Induced Expansion of Graphene Oxide Frameworks:
Observation by in Situ Neutron Diffraction |
title_sort | adsorption-induced expansion of graphene oxide frameworks:
observation by in situ neutron diffraction |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6854554/ https://www.ncbi.nlm.nih.gov/pubmed/31737827 http://dx.doi.org/10.1021/acsomega.9b02589 |
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