{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:2UYN3FTVVOWECQDOSK4TPVYG43","short_pith_number":"pith:2UYN3FTV","schema_version":"1.0","canonical_sha256":"d530dd9675abac41406e92b937d706e6de58ad36895eb420cbc0795e2d1912c2","source":{"kind":"arxiv","id":"1608.04462","version":1},"attestation_state":"computed","paper":{"title":"Ionization at a solid-water interface in an applied electric field: Charge regulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Akira Onuki, Ryuichi Okamoto","submitted_at":"2016-08-16T02:18:43Z","abstract_excerpt":"We investigate ionization at a solid-water interface in applied electric field. We attach an electrode to a dielectric film bearing silanol or carboxyl groups with an areal density $\\Gamma_0$, where the degree of dissociation $\\alpha$ is determined by the proton density in water close to the film. We show how $\\alpha$ depends on the density $n_0$ of NaOH in water and the surface charge density $\\sigma_m$ on the electrode. For $\\sigma_m>0$, the protons are expelled away from the film, leading to an increase in $\\alpha$. In particular, in the range $0<\\sigma_m0$, the protons are expelled away from the film, leading to an increase in $\\alpha$. In particular, in the range $0<\\sigma_m