Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach
We investigate the electric double layer formed between charged walls of a slit-like pore and a solvent primitive model (SPM) for electrolyte solution. The recently developed version of the weighted density functional approach for electrostatic interparticle interaction is applied to the study of th...
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| Дата: | 2014 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2014
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/153492 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach / O. Pizio, S. Sokołowski // Condensed Matter Physics. — 2014. — Т. 17, № 2. — С. 23603:1-10. — Бібліогр.: 34 назв. — англ. |
Репозитарії
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irk-123456789-1534922019-06-15T01:27:19Z Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach Pizio, O. Sokołowski, S. We investigate the electric double layer formed between charged walls of a slit-like pore and a solvent primitive model (SPM) for electrolyte solution. The recently developed version of the weighted density functional approach for electrostatic interparticle interaction is applied to the study of the density profiles, adsorption and selectivity of adsorption of ions and solvent species. Our principal focus, however, is in the dependence of differential capacitance on the applied voltage, on the electrode and on the pore width. We discuss the properties of the model with respect to the behavior of a primitive model, i.e., in the absence of a hard-sphere solvent. We observed that the differential capacitance of the SPM on the applied electrostatic potential has the camel-like shape unless the ion fraction is high. Moreover, it is documented that the dependence of differential capacitance of the SPM on the pore width is oscillatory, which is in close similarity to the primitive model. Ми дослiджуємо електричний подвiйний шар, сформований мiж двома зарядженими стiнками щiлиноподiбної пори, i примiтивну модель розчинника для розчину електролiту. Недавно розвинута версiя методу зваженого функцiоналу густини для електростатичної мiжчастинкової взаємодiї застосовується до вивчення профiлiв густини, адсорбцiї i селективностi адсорбованих iонiв i компонентiв розчинника. Ми звертаємо основну нашу увагу, проте, на залежнiсть диференцiйної електроємностi вiд прикладеної напруги на електродах i в порi. Ми обговорюємо властивостi моделi по вiдношенню до поведiнки примiтивної моделi, а саме, у вiдсутностi твердокулькового розчинника. Ми спостерегли, що диференцiйна електроємнiсть примiтивної моделi розчинника при прикладеному електростатичному потенцiалi має “двогорбову” форму, незважаючи на високу концентрацiю iонiв. Крiм того, знайдено, осцилюючу залежнiсть диференцiйної ємностi примiтивної моделi розчинника вiд ширини пори, що є дуже подiбно до примiтивної моделi. 2014 Article Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach / O. Pizio, S. Sokołowski // Condensed Matter Physics. — 2014. — Т. 17, № 2. — С. 23603:1-10. — Бібліогр.: 34 назв. — англ. 1607-324X arXiv:1407.3120 DOI:10.5488/CMP.17.23603 PACS: 61.20.Gy, 61.20.Qg, 65.20.Jk, 68.08.-p, 68.43.De http://dspace.nbuv.gov.ua/handle/123456789/153492 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
We investigate the electric double layer formed between charged walls of a slit-like pore and a solvent primitive model (SPM) for electrolyte solution. The recently developed version of the weighted density functional approach for electrostatic interparticle interaction is applied to the study of the density profiles, adsorption and selectivity of adsorption of ions and solvent species. Our principal focus, however, is in the dependence of differential capacitance on the applied voltage, on the electrode and on the pore width. We discuss the properties of the model with respect to the behavior of a primitive model, i.e., in the absence of a hard-sphere solvent. We observed that the differential capacitance of the SPM on the applied electrostatic potential has the camel-like shape unless the ion fraction is high. Moreover, it is documented that the dependence of differential capacitance of the SPM on the pore width is oscillatory, which is in close similarity to the primitive model. |
| format |
Article |
| author |
Pizio, O. Sokołowski, S. |
| spellingShingle |
Pizio, O. Sokołowski, S. Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach Condensed Matter Physics |
| author_facet |
Pizio, O. Sokołowski, S. |
| author_sort |
Pizio, O. |
| title |
Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach |
| title_short |
Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach |
| title_full |
Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach |
| title_fullStr |
Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach |
| title_full_unstemmed |
Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach |
| title_sort |
solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2014 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/153492 |
| citation_txt |
Solvent primitive model of an electric double layer in
slit-like pores: microscopic structure, adsorption and
capacitance from a density functional approach / O. Pizio, S. Sokołowski // Condensed Matter Physics. — 2014. — Т. 17, № 2. — С. 23603:1-10. — Бібліогр.: 34 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT pizioo solventprimitivemodelofanelectricdoublelayerinslitlikeporesmicroscopicstructureadsorptionandcapacitancefromadensityfunctionalapproach AT sokołowskis solventprimitivemodelofanelectricdoublelayerinslitlikeporesmicroscopicstructureadsorptionandcapacitancefromadensityfunctionalapproach |
| first_indexed |
2023-05-20T17:39:39Z |
| last_indexed |
2023-05-20T17:39:39Z |
| _version_ |
1796153801553477632 |