HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress
An incorporation of the hydrogen bond (O:HO or HB) cooperativity notion, contact angle detection, and the differential phonon spectrometrics (DPS) has enabled us to gain refined information on the HCl, KCl and KOH solvation resolved solute-solvent molecular interactions and the solution surface stre...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/87425 http://hdl.handle.net/10220/44436 |
| _version_ | 1826120902823116800 |
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| author | Zhang, Xi Xu, Yan Zhou, Yong Gong, Yinyan Huang, Yongli Sun, Chang Qing |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhang, Xi Xu, Yan Zhou, Yong Gong, Yinyan Huang, Yongli Sun, Chang Qing |
| author_sort | Zhang, Xi |
| collection | NTU |
| description | An incorporation of the hydrogen bond (O:HO or HB) cooperativity notion, contact angle detection, and the differential phonon spectrometrics (DPS) has enabled us to gain refined information on the HCl, KCl and KOH solvation resolved solute-solvent molecular interactions and the solution surface stresses. Results show that ionic polarization stiffens the solvent HO bond phonon from 3200 to 3480 cm−1 in the hydration shells. The HO− in alkaline solution, however, shares not only the same HO phonon redshift of compressed water from 3200 to < 3100 cm−1 but also the dangling bonds of H2O surface featured at 3610 cm−1. Salt and alkaline solvation enhances the solution surface stress by K+ and Cl− ionic polarization. The excessive H+ proton in acid solution forms a H↔H anti-HB that depresses the solution surface stress, instead. The solute capability of transforming the fraction of the O:HO bonds of the solvent matrix is featured by: fH = 0 and fx ∝ 1-exp(-C/C0) (x = HO−, K+ and Cl−) towards saturation. Exercises not only confirm the presence of the H↔H anti-HB point fragilization, the O:⇔:O super-HB point compression, and ionic polarization dominating the performance of the respective HCl, KOH, and KCl solutions, but also demonstrate the power of the DPS that enables high resolution of solute-solute-solvent interactions and correlation between HB relaxation and solution surface stress. |
| first_indexed | 2024-10-01T05:24:02Z |
| format | Journal Article |
| id | ntu-10356/87425 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:24:02Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/874252020-03-07T13:57:29Z HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress Zhang, Xi Xu, Yan Zhou, Yong Gong, Yinyan Huang, Yongli Sun, Chang Qing School of Electrical and Electronic Engineering Interface Hydrogen Bond An incorporation of the hydrogen bond (O:HO or HB) cooperativity notion, contact angle detection, and the differential phonon spectrometrics (DPS) has enabled us to gain refined information on the HCl, KCl and KOH solvation resolved solute-solvent molecular interactions and the solution surface stresses. Results show that ionic polarization stiffens the solvent HO bond phonon from 3200 to 3480 cm−1 in the hydration shells. The HO− in alkaline solution, however, shares not only the same HO phonon redshift of compressed water from 3200 to < 3100 cm−1 but also the dangling bonds of H2O surface featured at 3610 cm−1. Salt and alkaline solvation enhances the solution surface stress by K+ and Cl− ionic polarization. The excessive H+ proton in acid solution forms a H↔H anti-HB that depresses the solution surface stress, instead. The solute capability of transforming the fraction of the O:HO bonds of the solvent matrix is featured by: fH = 0 and fx ∝ 1-exp(-C/C0) (x = HO−, K+ and Cl−) towards saturation. Exercises not only confirm the presence of the H↔H anti-HB point fragilization, the O:⇔:O super-HB point compression, and ionic polarization dominating the performance of the respective HCl, KOH, and KCl solutions, but also demonstrate the power of the DPS that enables high resolution of solute-solute-solvent interactions and correlation between HB relaxation and solution surface stress. Accepted version 2018-02-12T08:01:14Z 2019-12-06T16:41:36Z 2018-02-12T08:01:14Z 2019-12-06T16:41:36Z 2017 Journal Article Zhang, X., Xu, Y., Zhou, Y., Gong, Y., Huang, Y., & Sun, C. Q. (2017). HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress. Applied Surface Science, 422, 475-481. 0169-4332 https://hdl.handle.net/10356/87425 http://hdl.handle.net/10220/44436 10.1016/j.apsusc.2017.06.019 en Applied Surface Science © 2017 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Applied Surface Science, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.apsusc.2017.06.019]. 19 p. application/pdf |
| spellingShingle | Interface Hydrogen Bond Zhang, Xi Xu, Yan Zhou, Yong Gong, Yinyan Huang, Yongli Sun, Chang Qing HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress |
| title | HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress |
| title_full | HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress |
| title_fullStr | HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress |
| title_full_unstemmed | HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress |
| title_short | HCl, KCl and KOH solvation resolved solute-solvent interactions and solution surface stress |
| title_sort | hcl kcl and koh solvation resolved solute solvent interactions and solution surface stress |
| topic | Interface Hydrogen Bond |
| url | https://hdl.handle.net/10356/87425 http://hdl.handle.net/10220/44436 |
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