Morphology and size effects on the reduction of silver oxide by hydrogen
The dependence of reactivity towards hydrogen on size and morphology was studied for silver oxide Ag2O microparticles. Morphological tuning of the microparticles, which appeared in a size range from 340 to 1400 nm, was achieved in a wet‐chemical synthesis approach. Thermogravimetric measurements all...
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| Veröffentlicht in: | Physica status solidi. A, Applications and materials science Applications and materials science, 2015-06, Vol.212 (6), p.1202-1209 |
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| container_title | Physica status solidi. A, Applications and materials science |
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| creator | Schimo, Gabriela Kreuzer, Andreas Michael Hassel, Achim Walter |
| description | The dependence of reactivity towards hydrogen on size and morphology was studied for silver oxide Ag2O microparticles. Morphological tuning of the microparticles, which appeared in a size range from 340 to 1400 nm, was achieved in a wet‐chemical synthesis approach. Thermogravimetric measurements allowed the determination of onset temperatures and reaction rates for reduction with gaseous hydrogen as reducing agent. The results reveal the high complexity of the Ag2O reduction process, on which both the surface to volume ratio as well as the facet dependent activity of the morphologies have great influence. Differential scanning calorimetry was employed to study reduction by hydrogen, desorbing from a hydrogen‐loaded palladium foil, showing great effect of contact area size on the reactivity. |
| doi_str_mv | 10.1002/pssa.201431669 |
| format | Article |
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Morphological tuning of the microparticles, which appeared in a size range from 340 to 1400 nm, was achieved in a wet‐chemical synthesis approach. Thermogravimetric measurements allowed the determination of onset temperatures and reaction rates for reduction with gaseous hydrogen as reducing agent. The results reveal the high complexity of the Ag2O reduction process, on which both the surface to volume ratio as well as the facet dependent activity of the morphologies have great influence. Differential scanning calorimetry was employed to study reduction by hydrogen, desorbing from a hydrogen‐loaded palladium foil, showing great effect of contact area size on the reactivity.</description><identifier>ISSN: 1862-6300</identifier><identifier>EISSN: 1862-6319</identifier><identifier>DOI: 10.1002/pssa.201431669</identifier><language>eng</language><publisher>Weinheim: Blackwell Publishing Ltd</publisher><subject>Differential scanning calorimetry ; Foils ; Hydrogen ; Microparticles ; morphological tuning ; Morphology ; Reduction ; silver (I) oxide ; Silver oxides ; Tuning</subject><ispartof>Physica status solidi. A, Applications and materials science, 2015-06, Vol.212 (6), p.1202-1209</ispartof><rights>2015 WILEY−VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2015 WILEY-VCH Verlag GmbH & Co. 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A, Applications and materials science</title><addtitle>Phys. Status Solidi A</addtitle><description>The dependence of reactivity towards hydrogen on size and morphology was studied for silver oxide Ag2O microparticles. Morphological tuning of the microparticles, which appeared in a size range from 340 to 1400 nm, was achieved in a wet‐chemical synthesis approach. Thermogravimetric measurements allowed the determination of onset temperatures and reaction rates for reduction with gaseous hydrogen as reducing agent. The results reveal the high complexity of the Ag2O reduction process, on which both the surface to volume ratio as well as the facet dependent activity of the morphologies have great influence. Differential scanning calorimetry was employed to study reduction by hydrogen, desorbing from a hydrogen‐loaded palladium foil, showing great effect of contact area size on the reactivity.</description><subject>Differential scanning calorimetry</subject><subject>Foils</subject><subject>Hydrogen</subject><subject>Microparticles</subject><subject>morphological tuning</subject><subject>Morphology</subject><subject>Reduction</subject><subject>silver (I) oxide</subject><subject>Silver oxides</subject><subject>Tuning</subject><issn>1862-6300</issn><issn>1862-6319</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkE1Lw0AQhoMoWKtXzwtevKTOZrO7ybEUbcX6Aa0IXpZtMmlT02zdTbTx15tSKeLF08zA8wwzr-edU-hRgOBq7ZzuBUBDRoWID7wOjUTgC0bjw30PcOydOLcECHkoaccb3Ru7XpjCzBuiy5S4_AsJZhkmlSOmJNUCicW0Tqq8nUzWAsUHWmI2eYpk1pBFk1ozx_LUO8p04fDsp3a955vr6WDkjx-Ht4P-2E-4oLHPZzRlHCUihLNMQsoo04FuLws58DgGzZkUMmIiSnUYYCZ0lHGeII8CFs6Adb3L3d61Ne81ukqtcpdgUegSTe0Ule2nIDkLWvTiD7o0tS3b6xQVMVAZU76lejsqscY5i5la23ylbaMoqG2wahus2gfbCvFO-MwLbP6h1dNk0v_t-js3dxVu9q62b0pIJrl6eRgqmEbwOrqLVMi-Aa95ijs</recordid><startdate>201506</startdate><enddate>201506</enddate><creator>Schimo, Gabriela</creator><creator>Kreuzer, Andreas Michael</creator><creator>Hassel, Achim Walter</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201506</creationdate><title>Morphology and size effects on the reduction of silver oxide by hydrogen</title><author>Schimo, Gabriela ; Kreuzer, Andreas Michael ; Hassel, Achim Walter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5619-5b1d35e7ee04bf70d313a2a6304505990a537678368da42ef6a8f55ce58234b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Differential scanning calorimetry</topic><topic>Foils</topic><topic>Hydrogen</topic><topic>Microparticles</topic><topic>morphological tuning</topic><topic>Morphology</topic><topic>Reduction</topic><topic>silver (I) oxide</topic><topic>Silver oxides</topic><topic>Tuning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schimo, Gabriela</creatorcontrib><creatorcontrib>Kreuzer, Andreas Michael</creatorcontrib><creatorcontrib>Hassel, Achim Walter</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica status solidi. A, Applications and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schimo, Gabriela</au><au>Kreuzer, Andreas Michael</au><au>Hassel, Achim Walter</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphology and size effects on the reduction of silver oxide by hydrogen</atitle><jtitle>Physica status solidi. A, Applications and materials science</jtitle><addtitle>Phys. Status Solidi A</addtitle><date>2015-06</date><risdate>2015</risdate><volume>212</volume><issue>6</issue><spage>1202</spage><epage>1209</epage><pages>1202-1209</pages><issn>1862-6300</issn><eissn>1862-6319</eissn><abstract>The dependence of reactivity towards hydrogen on size and morphology was studied for silver oxide Ag2O microparticles. Morphological tuning of the microparticles, which appeared in a size range from 340 to 1400 nm, was achieved in a wet‐chemical synthesis approach. Thermogravimetric measurements allowed the determination of onset temperatures and reaction rates for reduction with gaseous hydrogen as reducing agent. The results reveal the high complexity of the Ag2O reduction process, on which both the surface to volume ratio as well as the facet dependent activity of the morphologies have great influence. Differential scanning calorimetry was employed to study reduction by hydrogen, desorbing from a hydrogen‐loaded palladium foil, showing great effect of contact area size on the reactivity.</abstract><cop>Weinheim</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/pssa.201431669</doi><tpages>8</tpages></addata></record> |
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| subjects | Differential scanning calorimetry Foils Hydrogen Microparticles morphological tuning Morphology Reduction silver (I) oxide Silver oxides Tuning |
| title | Morphology and size effects on the reduction of silver oxide by hydrogen |
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