Melting of 1-octadecene inside the pores of open-morphology silica gel: thermodynamic model and experimental studies
Melting of crystalline compounds inside the nanopores of open-morphology porous systems was studied on a model system, consisted of 1-octadecene and silica gels with different pore sizes, by means of thermogravimetry, differential scanning calorimetry and powder X-ray diffraction. The parameters of...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2020-08, Vol.141 (3), p.1243-1250 |
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| creator | Hnatiuk, K. I. Dinzhos, R. V. Simeonov, M. S. Alekseev, A. N. Alekseev, S. A. Sirko, V. V. Zabashta, Yu. F. Koseva, N. S. Lazarenko, M. M. |
| description | Melting of crystalline compounds inside the nanopores of open-morphology porous systems was studied on a model system, consisted of 1-octadecene and silica gels with different pore sizes, by means of thermogravimetry, differential scanning calorimetry and powder X-ray diffraction. The parameters of silica gels porous structure (surface area, pore size and volume) were calculated using N
2
adsorption data. To describe the experimental results, a new thermodynamic model of crystallites melting inside the nanopores of irregular shape was established. This model allows an analytical prediction for the shift of phase transition temperature and melting enthalpy (latent heat of melting) due to the surface tension effects. To a first approximation, both parameters must linearly depend on the specific ratio of the total surface of pores to their total volume, and experimental studies have mostly confirmed this result for the melting of 1-octadecene confined inside the pores of a wide range of various silicas (with the pores of different sizes and geometry). |
| doi_str_mv | 10.1007/s10973-019-09133-4 |
| format | Article |
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2
adsorption data. To describe the experimental results, a new thermodynamic model of crystallites melting inside the nanopores of irregular shape was established. This model allows an analytical prediction for the shift of phase transition temperature and melting enthalpy (latent heat of melting) due to the surface tension effects. To a first approximation, both parameters must linearly depend on the specific ratio of the total surface of pores to their total volume, and experimental studies have mostly confirmed this result for the melting of 1-octadecene confined inside the pores of a wide range of various silicas (with the pores of different sizes and geometry).</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-019-09133-4</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Adsorption ; Analysis ; Analytical Chemistry ; Calorimetry ; Chemistry ; Chemistry and Materials Science ; Crystallites ; Diffraction ; Enthalpy ; Inorganic Chemistry ; Latent heat ; Measurement Science and Instrumentation ; Melting ; Morphology ; Parameters ; Phase transitions ; Physical Chemistry ; Polymer Sciences ; Pore size ; Porosity ; Silica ; Silica gel ; Silicon dioxide ; Surface tension ; Thermodynamic models ; Thermodynamics ; Thermogravimetry ; Transition temperature ; X ray powder diffraction ; X-rays</subject><ispartof>Journal of thermal analysis and calorimetry, 2020-08, Vol.141 (3), p.1243-1250</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2019</rights><rights>COPYRIGHT 2020 Springer</rights><rights>Akadémiai Kiadó, Budapest, Hungary 2019.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c429t-f4ef738139db125dd047f658309eb92223e52302d39cc819da756979a7e6ba9f3</citedby><cites>FETCH-LOGICAL-c429t-f4ef738139db125dd047f658309eb92223e52302d39cc819da756979a7e6ba9f3</cites><orcidid>0000-0001-8605-5253</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-019-09133-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-019-09133-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Hnatiuk, K. I.</creatorcontrib><creatorcontrib>Dinzhos, R. V.</creatorcontrib><creatorcontrib>Simeonov, M. S.</creatorcontrib><creatorcontrib>Alekseev, A. N.</creatorcontrib><creatorcontrib>Alekseev, S. A.</creatorcontrib><creatorcontrib>Sirko, V. V.</creatorcontrib><creatorcontrib>Zabashta, Yu. F.</creatorcontrib><creatorcontrib>Koseva, N. S.</creatorcontrib><creatorcontrib>Lazarenko, M. M.</creatorcontrib><title>Melting of 1-octadecene inside the pores of open-morphology silica gel: thermodynamic model and experimental studies</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>Melting of crystalline compounds inside the nanopores of open-morphology porous systems was studied on a model system, consisted of 1-octadecene and silica gels with different pore sizes, by means of thermogravimetry, differential scanning calorimetry and powder X-ray diffraction. The parameters of silica gels porous structure (surface area, pore size and volume) were calculated using N
2
adsorption data. To describe the experimental results, a new thermodynamic model of crystallites melting inside the nanopores of irregular shape was established. This model allows an analytical prediction for the shift of phase transition temperature and melting enthalpy (latent heat of melting) due to the surface tension effects. To a first approximation, both parameters must linearly depend on the specific ratio of the total surface of pores to their total volume, and experimental studies have mostly confirmed this result for the melting of 1-octadecene confined inside the pores of a wide range of various silicas (with the pores of different sizes and geometry).</description><subject>Adsorption</subject><subject>Analysis</subject><subject>Analytical Chemistry</subject><subject>Calorimetry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Crystallites</subject><subject>Diffraction</subject><subject>Enthalpy</subject><subject>Inorganic Chemistry</subject><subject>Latent heat</subject><subject>Measurement Science and Instrumentation</subject><subject>Melting</subject><subject>Morphology</subject><subject>Parameters</subject><subject>Phase transitions</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Pore size</subject><subject>Porosity</subject><subject>Silica</subject><subject>Silica gel</subject><subject>Silicon dioxide</subject><subject>Surface tension</subject><subject>Thermodynamic models</subject><subject>Thermodynamics</subject><subject>Thermogravimetry</subject><subject>Transition temperature</subject><subject>X ray powder diffraction</subject><subject>X-rays</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kUtrGzEUhYfSQlO3f6ArQVdZKNVjXsrOmLzApdAmayFLVxOFsTSRZIj_fTSdQvAm3IUOl-9IuvdU1XdKLigh3c9Eieg4JlRgIijnuP5QndGm7zETrP1YNC-6pQ35XH1J6YkQIgShZ1X-BWN2fkDBIoqDzsqABg_I-eQMoPwIaAoR0gyECTzehzg9hjEMR5Tc6LRCA4yXMxj3wRy92juNioIRKW8QvEwQ3R58ViNK-WAcpK_VJ6vGBN_-n6vq4frqfnOLt79v7jbrLdY1ExnbGmzHe8qF2VHWGEPqzrZNz4mAnWCMcWgYJ8xwoXVPhVFd04pOqA7anRKWr6ofy71TDM8HSFk-hUP05UnJasb6uUShLhZqUCNI523IUelSBsoowYN1pb9u502Svu6K4fzEUJgML3lQh5Tk3d8_pyxbWB1DShGsnMo2VDxKSuQcnVyikyU6-S86WRcTX0ypwH6A-Pbvd1yvG5ebuQ</recordid><startdate>20200801</startdate><enddate>20200801</enddate><creator>Hnatiuk, K. 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I.</creatorcontrib><creatorcontrib>Dinzhos, R. V.</creatorcontrib><creatorcontrib>Simeonov, M. S.</creatorcontrib><creatorcontrib>Alekseev, A. N.</creatorcontrib><creatorcontrib>Alekseev, S. A.</creatorcontrib><creatorcontrib>Sirko, V. V.</creatorcontrib><creatorcontrib>Zabashta, Yu. F.</creatorcontrib><creatorcontrib>Koseva, N. S.</creatorcontrib><creatorcontrib>Lazarenko, M. M.</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hnatiuk, K. I.</au><au>Dinzhos, R. V.</au><au>Simeonov, M. S.</au><au>Alekseev, A. N.</au><au>Alekseev, S. A.</au><au>Sirko, V. V.</au><au>Zabashta, Yu. F.</au><au>Koseva, N. S.</au><au>Lazarenko, M. M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Melting of 1-octadecene inside the pores of open-morphology silica gel: thermodynamic model and experimental studies</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2020-08-01</date><risdate>2020</risdate><volume>141</volume><issue>3</issue><spage>1243</spage><epage>1250</epage><pages>1243-1250</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>Melting of crystalline compounds inside the nanopores of open-morphology porous systems was studied on a model system, consisted of 1-octadecene and silica gels with different pore sizes, by means of thermogravimetry, differential scanning calorimetry and powder X-ray diffraction. The parameters of silica gels porous structure (surface area, pore size and volume) were calculated using N
2
adsorption data. To describe the experimental results, a new thermodynamic model of crystallites melting inside the nanopores of irregular shape was established. This model allows an analytical prediction for the shift of phase transition temperature and melting enthalpy (latent heat of melting) due to the surface tension effects. To a first approximation, both parameters must linearly depend on the specific ratio of the total surface of pores to their total volume, and experimental studies have mostly confirmed this result for the melting of 1-octadecene confined inside the pores of a wide range of various silicas (with the pores of different sizes and geometry).</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10973-019-09133-4</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-8605-5253</orcidid></addata></record> |
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| subjects | Adsorption Analysis Analytical Chemistry Calorimetry Chemistry Chemistry and Materials Science Crystallites Diffraction Enthalpy Inorganic Chemistry Latent heat Measurement Science and Instrumentation Melting Morphology Parameters Phase transitions Physical Chemistry Polymer Sciences Pore size Porosity Silica Silica gel Silicon dioxide Surface tension Thermodynamic models Thermodynamics Thermogravimetry Transition temperature X ray powder diffraction X-rays |
| title | Melting of 1-octadecene inside the pores of open-morphology silica gel: thermodynamic model and experimental studies |
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