Characterization of potassium salts of 12-tungstophosphoric acid
Potassium salts of 12-tungstophosphoric acid with varying amounts of cation, K x H 3 − x PW 12O 40 ( x = 1, 2, 3) have been prepared and their characteristics investigated by thermal analyses, FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons b...
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| Veröffentlicht in: | Materials research bulletin 2010-11, Vol.45 (11), p.1679-1684 |
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| creator | Holclajtner-Antunovic, I. Mioc, U.B. Todorovic, M. Jovanovic, Z. Davidovic, M. Bajuk-Bogdanovic, D. Lausevic, Z. |
| description | Potassium salts of 12-tungstophosphoric acid with varying amounts of cation, K
x
H
3
−
x
PW
12O
40 (
x
=
1, 2, 3) have been prepared and their characteristics investigated by thermal analyses, FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons by potassium ions in the 12-tungstophosphoric acid structure has influence on the presence of different protonic species, their dynamic equilibrium and on the conductivity of salts. The results reported in this study have been applied to improve the structural model of insoluble acidic salts. It is shown that an acidic potassium salt presents a mixture of neutral salt and unreacted acid. The nature of this mixture depends on the number of replaced protons-oxonium ions by cations. Preliminary measurements with synthesized compounds as solid electrolytes in fuel cells have been done, too. |
| doi_str_mv | 10.1016/j.materresbull.2010.06.064 |
| format | Article |
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x
H
3
−
x
PW
12O
40 (
x
=
1, 2, 3) have been prepared and their characteristics investigated by thermal analyses, FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons by potassium ions in the 12-tungstophosphoric acid structure has influence on the presence of different protonic species, their dynamic equilibrium and on the conductivity of salts. The results reported in this study have been applied to improve the structural model of insoluble acidic salts. It is shown that an acidic potassium salt presents a mixture of neutral salt and unreacted acid. The nature of this mixture depends on the number of replaced protons-oxonium ions by cations. Preliminary measurements with synthesized compounds as solid electrolytes in fuel cells have been done, too.</description><identifier>ISSN: 0025-5408</identifier><identifier>EISSN: 1873-4227</identifier><identifier>DOI: 10.1016/j.materresbull.2010.06.064</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>A. Superconductors ; ABSORPTION SPECTROSCOPY ; B. Proton conductivity ; C. Electron microscopy ; C. Infrared spectroscopy ; C. Raman spectroscopy ; C. Thermogravimetric analysis ; FOURIER TRANSFORMATION ; FUEL CELLS ; INFRARED SPECTRA ; MATERIALS SCIENCE ; POTASSIUM ; POTASSIUM IONS ; PROTON CONDUCTIVITY ; PROTONS ; RAMAN SPECTROSCOPY ; SALTS ; SCANNING ELECTRON MICROSCOPY ; STRUCTURAL MODELS ; SUPERCONDUCTORS ; THERMAL GRAVIMETRIC ANALYSIS ; TUNGSTOPHOSPHORIC ACID</subject><ispartof>Materials research bulletin, 2010-11, Vol.45 (11), p.1679-1684</ispartof><rights>2010 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c352t-8bbcbc49849dc4ccfdb7228ceeba5a527fd7db5de67b81be2d8c4fc1fcdfaa343</citedby><cites>FETCH-LOGICAL-c352t-8bbcbc49849dc4ccfdb7228ceeba5a527fd7db5de67b81be2d8c4fc1fcdfaa343</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0025540810002679$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22202860$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Holclajtner-Antunovic, I.</creatorcontrib><creatorcontrib>Mioc, U.B.</creatorcontrib><creatorcontrib>Todorovic, M.</creatorcontrib><creatorcontrib>Jovanovic, Z.</creatorcontrib><creatorcontrib>Davidovic, M.</creatorcontrib><creatorcontrib>Bajuk-Bogdanovic, D.</creatorcontrib><creatorcontrib>Lausevic, Z.</creatorcontrib><title>Characterization of potassium salts of 12-tungstophosphoric acid</title><title>Materials research bulletin</title><description>Potassium salts of 12-tungstophosphoric acid with varying amounts of cation, K
x
H
3
−
x
PW
12O
40 (
x
=
1, 2, 3) have been prepared and their characteristics investigated by thermal analyses, FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons by potassium ions in the 12-tungstophosphoric acid structure has influence on the presence of different protonic species, their dynamic equilibrium and on the conductivity of salts. The results reported in this study have been applied to improve the structural model of insoluble acidic salts. It is shown that an acidic potassium salt presents a mixture of neutral salt and unreacted acid. The nature of this mixture depends on the number of replaced protons-oxonium ions by cations. Preliminary measurements with synthesized compounds as solid electrolytes in fuel cells have been done, too.</description><subject>A. Superconductors</subject><subject>ABSORPTION SPECTROSCOPY</subject><subject>B. Proton conductivity</subject><subject>C. Electron microscopy</subject><subject>C. Infrared spectroscopy</subject><subject>C. Raman spectroscopy</subject><subject>C. Thermogravimetric analysis</subject><subject>FOURIER TRANSFORMATION</subject><subject>FUEL CELLS</subject><subject>INFRARED SPECTRA</subject><subject>MATERIALS SCIENCE</subject><subject>POTASSIUM</subject><subject>POTASSIUM IONS</subject><subject>PROTON CONDUCTIVITY</subject><subject>PROTONS</subject><subject>RAMAN SPECTROSCOPY</subject><subject>SALTS</subject><subject>SCANNING ELECTRON MICROSCOPY</subject><subject>STRUCTURAL MODELS</subject><subject>SUPERCONDUCTORS</subject><subject>THERMAL GRAVIMETRIC ANALYSIS</subject><subject>TUNGSTOPHOSPHORIC ACID</subject><issn>0025-5408</issn><issn>1873-4227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqNUE1LAzEQDaJgrf6HRc9bk2x2k3pS6icUvOg5JJPEpmw3S5IK-uvNUg8ehTcMzLx5j3kIXRK8IJh019vFTmUbo0163_cLissCdwXsCM2I4E3NKOXHaIYxbeuWYXGKzlLaYoyZ4HyGblcbFRUUDf-tsg9DFVw1hqxS8vtdlVSf0zQitM774SPlMG5CKhU9VAq8OUcnTvXJXvz2OXp_fHhbPdfr16eX1d26hqaluRZagwa2FGxpgAE4ozmlAqzVqlUt5c5wo1tjO64F0ZYaAcwBcWCcUg1r5ujqoBtS9jKBzxY2EIbBQpaUUkxFhwvr5sCCGFKK1skx-p2KX5JgOSUmt_JvYnJKTOKuYLK4Pxzb8sent3GysQNY4-PkYoL_j8wP2mB-cg</recordid><startdate>20101101</startdate><enddate>20101101</enddate><creator>Holclajtner-Antunovic, I.</creator><creator>Mioc, U.B.</creator><creator>Todorovic, M.</creator><creator>Jovanovic, Z.</creator><creator>Davidovic, M.</creator><creator>Bajuk-Bogdanovic, D.</creator><creator>Lausevic, Z.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20101101</creationdate><title>Characterization of potassium salts of 12-tungstophosphoric acid</title><author>Holclajtner-Antunovic, I. ; Mioc, U.B. ; Todorovic, M. ; Jovanovic, Z. ; Davidovic, M. ; Bajuk-Bogdanovic, D. ; Lausevic, Z.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c352t-8bbcbc49849dc4ccfdb7228ceeba5a527fd7db5de67b81be2d8c4fc1fcdfaa343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>A. Superconductors</topic><topic>ABSORPTION SPECTROSCOPY</topic><topic>B. Proton conductivity</topic><topic>C. Electron microscopy</topic><topic>C. Infrared spectroscopy</topic><topic>C. Raman spectroscopy</topic><topic>C. Thermogravimetric analysis</topic><topic>FOURIER TRANSFORMATION</topic><topic>FUEL CELLS</topic><topic>INFRARED SPECTRA</topic><topic>MATERIALS SCIENCE</topic><topic>POTASSIUM</topic><topic>POTASSIUM IONS</topic><topic>PROTON CONDUCTIVITY</topic><topic>PROTONS</topic><topic>RAMAN SPECTROSCOPY</topic><topic>SALTS</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>STRUCTURAL MODELS</topic><topic>SUPERCONDUCTORS</topic><topic>THERMAL GRAVIMETRIC ANALYSIS</topic><topic>TUNGSTOPHOSPHORIC ACID</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Holclajtner-Antunovic, I.</creatorcontrib><creatorcontrib>Mioc, U.B.</creatorcontrib><creatorcontrib>Todorovic, M.</creatorcontrib><creatorcontrib>Jovanovic, Z.</creatorcontrib><creatorcontrib>Davidovic, M.</creatorcontrib><creatorcontrib>Bajuk-Bogdanovic, D.</creatorcontrib><creatorcontrib>Lausevic, Z.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Materials research bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Holclajtner-Antunovic, I.</au><au>Mioc, U.B.</au><au>Todorovic, M.</au><au>Jovanovic, Z.</au><au>Davidovic, M.</au><au>Bajuk-Bogdanovic, D.</au><au>Lausevic, Z.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of potassium salts of 12-tungstophosphoric acid</atitle><jtitle>Materials research bulletin</jtitle><date>2010-11-01</date><risdate>2010</risdate><volume>45</volume><issue>11</issue><spage>1679</spage><epage>1684</epage><pages>1679-1684</pages><issn>0025-5408</issn><eissn>1873-4227</eissn><abstract>Potassium salts of 12-tungstophosphoric acid with varying amounts of cation, K
x
H
3
−
x
PW
12O
40 (
x
=
1, 2, 3) have been prepared and their characteristics investigated by thermal analyses, FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons by potassium ions in the 12-tungstophosphoric acid structure has influence on the presence of different protonic species, their dynamic equilibrium and on the conductivity of salts. The results reported in this study have been applied to improve the structural model of insoluble acidic salts. It is shown that an acidic potassium salt presents a mixture of neutral salt and unreacted acid. The nature of this mixture depends on the number of replaced protons-oxonium ions by cations. Preliminary measurements with synthesized compounds as solid electrolytes in fuel cells have been done, too.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.materresbull.2010.06.064</doi><tpages>6</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | A. Superconductors ABSORPTION SPECTROSCOPY B. Proton conductivity C. Electron microscopy C. Infrared spectroscopy C. Raman spectroscopy C. Thermogravimetric analysis FOURIER TRANSFORMATION FUEL CELLS INFRARED SPECTRA MATERIALS SCIENCE POTASSIUM POTASSIUM IONS PROTON CONDUCTIVITY PROTONS RAMAN SPECTROSCOPY SALTS SCANNING ELECTRON MICROSCOPY STRUCTURAL MODELS SUPERCONDUCTORS THERMAL GRAVIMETRIC ANALYSIS TUNGSTOPHOSPHORIC ACID |
| title | Characterization of potassium salts of 12-tungstophosphoric acid |
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