X-ray photoelectron spectroscopy of Sm-doped layered perovskite for intermediate temperature-operating solid oxide fuel cell
Chemical states of Sm doped layered perovksite, SmBa1-x Sr x Co2O5+d (x =0 and 0.5), have been investigated by X-ray Photoelectron Spectroscopy (XPS). Substitution of Sr in SmBa1-xSr x Co2O5+d oxide system shifts the binding energy of Sm 3d5/2 to the more positive side and the charge state of Sm rem...
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| Veröffentlicht in: | Applied surface science 2014, Vol.288, p.695-701 |
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| creator | YONGMIN KIM SCHLEGL, Harald KEUNSOO KIM IRVINE, John T. S JUNG HYUN KIM |
| description | Chemical states of Sm doped layered perovksite, SmBa1-x Sr x Co2O5+d (x =0 and 0.5), have been investigated by X-ray Photoelectron Spectroscopy (XPS). Substitution of Sr in SmBa1-xSr x Co2O5+d oxide system shifts the binding energy of Sm 3d5/2 to the more positive side and the charge state of Sm remained Sm3+. Therefore, the substitution of Sr into the SmBa1-x Sr x Co2O5+d oxide system does not change the charge state of Sm. Three types of oxygen species were observed in SmBa0.5Sr0.5Co2O5+d (SBSCO) and SBCO from the O 1s spectra comprised of lattice oxygen, carbonated species and adsorbed oxygen species with respect to the measured binding energy ranges. The more Sr was substituted into the Sm doped layered perovskite, the larger the binding energy values became. In case of the Co spectra of SBSCO, two satellite peaks were observed at the range of 786.0-789.0eV and at 804.93eV. The evidence of Co3+ and Co4+ indicated that Co is existing in the chemical form of mixed valence state including Co3+ and Co4+ in SBCO and SBSCO oxide systems. |
| doi_str_mv | 10.1016/j.apsusc.2013.10.107 |
| format | Article |
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S ; JUNG HYUN KIM</creator><creatorcontrib>YONGMIN KIM ; SCHLEGL, Harald ; KEUNSOO KIM ; IRVINE, John T. S ; JUNG HYUN KIM</creatorcontrib><description>Chemical states of Sm doped layered perovksite, SmBa1-x Sr x Co2O5+d (x =0 and 0.5), have been investigated by X-ray Photoelectron Spectroscopy (XPS). Substitution of Sr in SmBa1-xSr x Co2O5+d oxide system shifts the binding energy of Sm 3d5/2 to the more positive side and the charge state of Sm remained Sm3+. Therefore, the substitution of Sr into the SmBa1-x Sr x Co2O5+d oxide system does not change the charge state of Sm. Three types of oxygen species were observed in SmBa0.5Sr0.5Co2O5+d (SBSCO) and SBCO from the O 1s spectra comprised of lattice oxygen, carbonated species and adsorbed oxygen species with respect to the measured binding energy ranges. The more Sr was substituted into the Sm doped layered perovskite, the larger the binding energy values became. In case of the Co spectra of SBSCO, two satellite peaks were observed at the range of 786.0-789.0eV and at 804.93eV. The evidence of Co3+ and Co4+ indicated that Co is existing in the chemical form of mixed valence state including Co3+ and Co4+ in SBCO and SBSCO oxide systems.</description><identifier>ISSN: 0169-4332</identifier><identifier>EISSN: 1873-5584</identifier><identifier>DOI: 10.1016/j.apsusc.2013.10.107</identifier><language>eng</language><publisher>Amsterdam: Elsevier</publisher><subject>Binding energy ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Oxides ; Oxygen ; Perovskites ; Photoelectron spectroscopy ; Physics ; Samarium ; Spectra ; X-rays</subject><ispartof>Applied surface science, 2014, Vol.288, p.695-701</ispartof><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c355t-cfd83f9afda84ced45497f000288b96637a479d34e184bf15162ba8d06ca6dcc3</citedby><cites>FETCH-LOGICAL-c355t-cfd83f9afda84ced45497f000288b96637a479d34e184bf15162ba8d06ca6dcc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28598297$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>YONGMIN KIM</creatorcontrib><creatorcontrib>SCHLEGL, Harald</creatorcontrib><creatorcontrib>KEUNSOO KIM</creatorcontrib><creatorcontrib>IRVINE, John T. 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The more Sr was substituted into the Sm doped layered perovskite, the larger the binding energy values became. In case of the Co spectra of SBSCO, two satellite peaks were observed at the range of 786.0-789.0eV and at 804.93eV. The evidence of Co3+ and Co4+ indicated that Co is existing in the chemical form of mixed valence state including Co3+ and Co4+ in SBCO and SBSCO oxide systems.</description><subject>Binding energy</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Oxides</subject><subject>Oxygen</subject><subject>Perovskites</subject><subject>Photoelectron spectroscopy</subject><subject>Physics</subject><subject>Samarium</subject><subject>Spectra</subject><subject>X-rays</subject><issn>0169-4332</issn><issn>1873-5584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNo9UE1LxDAUDKLguvoPPOQieGlNmrRNj7L4BQseVPBWssmLZm2bmrRiwR9vdiue5jFv5n0MQueUpJTQ4mqbyj6MQaUZoSzds-UBWlBRsiTPBT9EiyirEs5YdoxOQtgSQrPYXaCf18TLCffvbnDQgBq863Do90VQrp-wM_ipTbTrQeNGTuAj9uDdV_iwA2DjPLbdAL4FbWUkBmhjWw6jh8TtK9u94eAaq7H7tjpaRmiwgqY5RUdGNgHO_nCJXm5vnlf3yfrx7mF1vU4Uy_MhUUYLZipptBRcgeY5r0pDCMmE2FRFwUrJy0ozDlTwjaE5LbKNFJoUShZaKbZEl_Pc3rvPEcJQtzbsDpAduDHUVIg4jRc5iVI-S1X8P3gwde9tK_1UU1Lvwq639Rx2vQt7Zstou_jbIIOSjfGyUzb8ezORVyKrSvYLepSFhw</recordid><startdate>2014</startdate><enddate>2014</enddate><creator>YONGMIN KIM</creator><creator>SCHLEGL, Harald</creator><creator>KEUNSOO KIM</creator><creator>IRVINE, John T. 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S</au><au>JUNG HYUN KIM</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>X-ray photoelectron spectroscopy of Sm-doped layered perovskite for intermediate temperature-operating solid oxide fuel cell</atitle><jtitle>Applied surface science</jtitle><date>2014</date><risdate>2014</risdate><volume>288</volume><spage>695</spage><epage>701</epage><pages>695-701</pages><issn>0169-4332</issn><eissn>1873-5584</eissn><abstract>Chemical states of Sm doped layered perovksite, SmBa1-x Sr x Co2O5+d (x =0 and 0.5), have been investigated by X-ray Photoelectron Spectroscopy (XPS). Substitution of Sr in SmBa1-xSr x Co2O5+d oxide system shifts the binding energy of Sm 3d5/2 to the more positive side and the charge state of Sm remained Sm3+. Therefore, the substitution of Sr into the SmBa1-x Sr x Co2O5+d oxide system does not change the charge state of Sm. Three types of oxygen species were observed in SmBa0.5Sr0.5Co2O5+d (SBSCO) and SBCO from the O 1s spectra comprised of lattice oxygen, carbonated species and adsorbed oxygen species with respect to the measured binding energy ranges. The more Sr was substituted into the Sm doped layered perovskite, the larger the binding energy values became. In case of the Co spectra of SBSCO, two satellite peaks were observed at the range of 786.0-789.0eV and at 804.93eV. The evidence of Co3+ and Co4+ indicated that Co is existing in the chemical form of mixed valence state including Co3+ and Co4+ in SBCO and SBSCO oxide systems.</abstract><cop>Amsterdam</cop><pub>Elsevier</pub><doi>10.1016/j.apsusc.2013.10.107</doi><tpages>7</tpages></addata></record> |
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| subjects | Binding energy Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Oxides Oxygen Perovskites Photoelectron spectroscopy Physics Samarium Spectra X-rays |
| title | X-ray photoelectron spectroscopy of Sm-doped layered perovskite for intermediate temperature-operating solid oxide fuel cell |
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