%0 Journal Article %1 chen_surface_2020 %A Chen, Lifu %A Batchelor-McAuley, Christopher %A Rasche, Bertold %A Johnston, Colin %A Hindle, Neil %A Compton, Richard G. %D 2020 %J Appl. Mat. Today %K Dopamine_adsorption Graphene Graphene_oxide Surface_area_characterisation UV-vis_spectroscopy %P 100506 %R 10.1016/j.apmt.2019.100506 %T Surface area measurements of graphene and graphene oxide samples: Dopamine adsorption as a complement or alternative to methylene blue? %U http://www.sciencedirect.com/science/article/pii/S2352940719306250 %V 18 %X The possible use of dopamine, monitored spectroscopically, as a probe molecule for surface area measurements is investigated. Using high surface area carbon materials, including both graphene and graphene oxide (GO), the method is established as a complement or alternative to methylene blue or conventional N2 (BET) adsorption. The molecular reorientation (flat to vertical) of dopamine on the graphene and GO surface provides a direct indication of the monolayer coverage and the rapid adsorption (within 10 min to saturation) offers high convenience. The smaller dopamine molecule size and less self-repulsion compared to methylene blue can be considered to yield a more closely-packed surface coverage on the materials of interest. Especially for materials with complex morphologies and internal structures, the dopamine adsorption will therefore lead to a more ‘correct’ measurement.

@article{chen_surface_2020, abstract = {The possible use of dopamine, monitored spectroscopically, as a probe molecule for surface area measurements is investigated. Using high surface area carbon materials, including both graphene and graphene oxide (GO), the method is established as a complement or alternative to methylene blue or conventional N2 (BET) adsorption. The molecular reorientation (flat to vertical) of dopamine on the graphene and GO surface provides a direct indication of the monolayer coverage and the rapid adsorption (within 10 min to saturation) offers high convenience. The smaller dopamine molecule size and less self-repulsion compared to methylene blue can be considered to yield a more closely-packed surface coverage on the materials of interest. Especially for materials with complex morphologies and internal structures, the dopamine adsorption will therefore lead to a more ‘correct’ measurement.}, added-at = {2024-03-25T12:35:57.000+0100}, author = {Chen, Lifu and Batchelor-McAuley, Christopher and Rasche, Bertold and Johnston, Colin and Hindle, Neil and Compton, Richard G.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2ca6e7e0cd68b1ad5aa2dab67debf5194/brasche}, doi = {10.1016/j.apmt.2019.100506}, file = {Chen et al_2020_Surface area measurements of graphene and graphene oxide samples.pdf:files/4442/Chen et al_2020_Surface area measurements of graphene and graphene oxide samples.pdf:application/pdf;ScienceDirect Snapshot:files/4441/S2352940719306250.html:text/html}, interhash = {a95ec89f73c3719b9a017eb2daf22e26}, intrahash = {ca6e7e0cd68b1ad5aa2dab67debf5194}, issn = {2352-9407}, journal = {Appl. Mat. Today}, keywords = {Dopamine_adsorption Graphene Graphene_oxide Surface_area_characterisation UV-vis_spectroscopy}, language = {en}, month = mar, pages = 100506, shorttitle = {Surface area measurements of graphene and graphene oxide samples}, timestamp = {2024-03-25T12:35:57.000+0100}, title = {Surface area measurements of graphene and graphene oxide samples: {Dopamine} adsorption as a complement or alternative to methylene blue?}, url = {http://www.sciencedirect.com/science/article/pii/S2352940719306250}, urldate = {2020-03-27}, volume = 18, year = 2020 }