Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds
In the present work, six protic ionic liquid (PIL) compounds based on p-toluene sulfonic acid [PTSA] anion along with different cations viz. tetraethylenepentammonium [TEPA], triethylammonium [TEA], pyridinium [Py], N-methylpiperidinium [Pip], 1-methylimidazolium [Im], and N-methylpyrrolidinium [Pyr...
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MDPI AG
2022-04-01
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| author | Arfat Anis Manawwer Alam Abdullah Alhamidi Mohammad Asif Alam Ravindra Kumar Gupta Mohammad Tariq Hamid Shaikh Anesh Manjaly Poulose Saeed M. Al-Zahrani |
| author_facet | Arfat Anis Manawwer Alam Abdullah Alhamidi Mohammad Asif Alam Ravindra Kumar Gupta Mohammad Tariq Hamid Shaikh Anesh Manjaly Poulose Saeed M. Al-Zahrani |
| author_sort | Arfat Anis |
| collection | DOAJ |
| description | In the present work, six protic ionic liquid (PIL) compounds based on p-toluene sulfonic acid [PTSA] anion along with different cations viz. tetraethylenepentammonium [TEPA], triethylammonium [TEA], pyridinium [Py], N-methylpiperidinium [Pip], 1-methylimidazolium [Im], and N-methylpyrrolidinium [Pyrr] were synthesized using the standard neutralization reaction method. The structural characterization of these compounds was achieved using FTIR, <sup>1</sup>H and <sup>13</sup>C NMR spectroscopies. Thermal behavior was studied using differential scanning calorimetry to determine the melting point (T<sub>m</sub>) and crystallization (T<sub>c</sub>) temperatures. Thermogravimetric analysis was carried out to determine the thermal stability and degradation temperatures (Tdec) and to ascertain the hygroscopic or hydrophobic nature of the synthesized compounds. Structural effects on the outcome of various properties were witnessed and discussed in detail. Electrochemical impedance spectroscopy was utilized to study the electrical transport properties of the PILs at different temperatures. Cyclic voltammetry was performed to analyze the electrochemical stability of these PILs. Low values of activation energy indicating easy proton transportation along with good electrochemical stability make the PILs a potential candidate for use in the preparation of polymer electrolytes membranes for fuel cell applications. |
| first_indexed | 2024-03-09T10:59:11Z |
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| id | doaj.art-68c8f8e45495465fb82b3c3bddbeb60f |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T10:59:11Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-68c8f8e45495465fb82b3c3bddbeb60f2023-12-01T01:24:51ZengMDPI AGCrystals2073-43522022-04-0112450710.3390/cryst12040507Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic CompoundsArfat Anis0Manawwer Alam1Abdullah Alhamidi2Mohammad Asif Alam3Ravindra Kumar Gupta4Mohammad Tariq5Hamid Shaikh6Anesh Manjaly Poulose7Saeed M. Al-Zahrani8SABIC Polymer Research Center (SPRC), Chemical Engineering Department, King Saud University, Riyadh 11421, Saudi ArabiaDepartment of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaSABIC Polymer Research Center (SPRC), Chemical Engineering Department, King Saud University, Riyadh 11421, Saudi ArabiaCenter of Excellence for Research in Engineering Materials (CEREM), King Saud University, Riyadh 11421, Saudi ArabiaKing Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi ArabiaLAQV, REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, PortugalSABIC Polymer Research Center (SPRC), Chemical Engineering Department, King Saud University, Riyadh 11421, Saudi ArabiaSABIC Polymer Research Center (SPRC), Chemical Engineering Department, King Saud University, Riyadh 11421, Saudi ArabiaSABIC Polymer Research Center (SPRC), Chemical Engineering Department, King Saud University, Riyadh 11421, Saudi ArabiaIn the present work, six protic ionic liquid (PIL) compounds based on p-toluene sulfonic acid [PTSA] anion along with different cations viz. tetraethylenepentammonium [TEPA], triethylammonium [TEA], pyridinium [Py], N-methylpiperidinium [Pip], 1-methylimidazolium [Im], and N-methylpyrrolidinium [Pyrr] were synthesized using the standard neutralization reaction method. The structural characterization of these compounds was achieved using FTIR, <sup>1</sup>H and <sup>13</sup>C NMR spectroscopies. Thermal behavior was studied using differential scanning calorimetry to determine the melting point (T<sub>m</sub>) and crystallization (T<sub>c</sub>) temperatures. Thermogravimetric analysis was carried out to determine the thermal stability and degradation temperatures (Tdec) and to ascertain the hygroscopic or hydrophobic nature of the synthesized compounds. Structural effects on the outcome of various properties were witnessed and discussed in detail. Electrochemical impedance spectroscopy was utilized to study the electrical transport properties of the PILs at different temperatures. Cyclic voltammetry was performed to analyze the electrochemical stability of these PILs. Low values of activation energy indicating easy proton transportation along with good electrochemical stability make the PILs a potential candidate for use in the preparation of polymer electrolytes membranes for fuel cell applications.https://www.mdpi.com/2073-4352/12/4/507protic ionic liquidsp-toluene sulfonic acidionic conductivityFTIR spectroscopyNMR analysis |
| spellingShingle | Arfat Anis Manawwer Alam Abdullah Alhamidi Mohammad Asif Alam Ravindra Kumar Gupta Mohammad Tariq Hamid Shaikh Anesh Manjaly Poulose Saeed M. Al-Zahrani Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds Crystals protic ionic liquids p-toluene sulfonic acid ionic conductivity FTIR spectroscopy NMR analysis |
| title | Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds |
| title_full | Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds |
| title_fullStr | Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds |
| title_full_unstemmed | Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds |
| title_short | Characterization of Thermal, Ionic Conductivity and Electrochemical Properties of Some <i>p</i>-Tosylate Anions-Based Protic Ionic Compounds |
| title_sort | characterization of thermal ionic conductivity and electrochemical properties of some i p i tosylate anions based protic ionic compounds |
| topic | protic ionic liquids p-toluene sulfonic acid ionic conductivity FTIR spectroscopy NMR analysis |
| url | https://www.mdpi.com/2073-4352/12/4/507 |
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