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Catechol adsorption on graphene nanoplatelets: isotherm, flat to vertical phase transition and desorption kinetics

Abstract:

The adsorption of catechol (1,2-dihydroxybenzene) on graphene nanoplatelets (GNPs) is investigated electrochemically and spectroscopically. The reversible adsorption of catechol on GNPs is Langmuirian with an adsorption constant of (0.2 ± 0.002) mM−1 at low adsorbate concentrations (≤100 mM). At higher concentrations (>100 mM) the adsorption of catechol on GNPs is shown to undergo a flat to vertical concentration driven phase transition. The kinetics of desorption are measured w...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1039/C7SC01331K

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Institution:
University of Oxford
Oxford college:
St Cross College
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Publisher:
Royal Society of Chemistry Publisher's website
Journal:
Chemical Science Journal website
Volume:
8
Issue:
7
Pages:
4771-4778
Publication date:
2017-05-04
Acceptance date:
2017-04-30
DOI:
EISSN:
2041-6539
ISSN:
2041-6520
Source identifiers:
693973
Pubs id:
pubs:693973
UUID:
uuid:690caebe-2b76-4d7b-8067-925aa7176cd0
Local pid:
pubs:693973
Deposit date:
2017-05-12

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