Are SAXS and SANS suitable to extract information on the role of water for electric-double-layer formation at the carbon-aqueous-electrolyte interface?

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@article{0c2fe180ff2442aebc8489e082df3574,
title = "Are SAXS and SANS suitable to extract information on the role of water for electric-double-layer formation at the carbon-aqueous-electrolyte interface?",
abstract = "This study reports on the applicability of X-ray transmission (XRT), small- and wide-angle X-ray scattering (SAXS/WAXS) and small-angle neutron scattering (SANS) for investigating fundamental processes taking place in the working electrode of an electric double-layer capacitor with 1M RbBr aqueous electrolyte at different applied potentials. XRT and incoherent neutron scattering are employed to determine global ion- and water concentration changes and associated charge-balancing mechanisms. We showcase the suitability of SAXS and SANS to get complementary information on local ion and solvent rearrangement in nanoconfinement, respectively, but also underscore the limitations of simple qualitative models, asking for more quantitative descriptions of water-water and ion-water interactions via detailed atomistic modelling approaches.",
author = "Malina Seyffertitz and Sebastian Stock and Max Rauscher and Christian Prehal and Sylvio Haas and Lionel Porcar and Oskar Paris",
note = "Publisher Copyright: {\textcopyright} 2023 The Royal Society of Chemistry. Publisher Copyright: {\textcopyright} 2024 The Royal Society of Chemistry.",
year = "2023",
month = aug,
day = "16",
doi = "10.1039/D3FD00124E",
language = "English",
volume = "2024",
pages = "363--380",
journal = "Faraday Discussions",
issn = "1359-6640",
publisher = "Royal Society of Chemistry",
number = "249",

}

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TY - JOUR

T1 - Are SAXS and SANS suitable to extract information on the role of water for electric-double-layer formation at the carbon-aqueous-electrolyte interface?

AU - Seyffertitz, Malina

AU - Stock, Sebastian

AU - Rauscher, Max

AU - Prehal, Christian

AU - Haas, Sylvio

AU - Porcar, Lionel

AU - Paris, Oskar

N1 - Publisher Copyright: © 2023 The Royal Society of Chemistry. Publisher Copyright: © 2024 The Royal Society of Chemistry.

PY - 2023/8/16

Y1 - 2023/8/16

N2 - This study reports on the applicability of X-ray transmission (XRT), small- and wide-angle X-ray scattering (SAXS/WAXS) and small-angle neutron scattering (SANS) for investigating fundamental processes taking place in the working electrode of an electric double-layer capacitor with 1M RbBr aqueous electrolyte at different applied potentials. XRT and incoherent neutron scattering are employed to determine global ion- and water concentration changes and associated charge-balancing mechanisms. We showcase the suitability of SAXS and SANS to get complementary information on local ion and solvent rearrangement in nanoconfinement, respectively, but also underscore the limitations of simple qualitative models, asking for more quantitative descriptions of water-water and ion-water interactions via detailed atomistic modelling approaches.

AB - This study reports on the applicability of X-ray transmission (XRT), small- and wide-angle X-ray scattering (SAXS/WAXS) and small-angle neutron scattering (SANS) for investigating fundamental processes taking place in the working electrode of an electric double-layer capacitor with 1M RbBr aqueous electrolyte at different applied potentials. XRT and incoherent neutron scattering are employed to determine global ion- and water concentration changes and associated charge-balancing mechanisms. We showcase the suitability of SAXS and SANS to get complementary information on local ion and solvent rearrangement in nanoconfinement, respectively, but also underscore the limitations of simple qualitative models, asking for more quantitative descriptions of water-water and ion-water interactions via detailed atomistic modelling approaches.

UR - http://www.scopus.com/inward/record.url?scp=85174402388&partnerID=8YFLogxK

U2 - 10.1039/D3FD00124E

DO - 10.1039/D3FD00124E

M3 - Article

C2 - 37795935

AN - SCOPUS:85174402388

VL - 2024

SP - 363

EP - 380

JO - Faraday Discussions

JF - Faraday Discussions

SN - 1359-6640

IS - 249

ER -