Mesoporous Co-Na pyrophosphate/reduced graphene oxide as an oxygen evolution reaction electrocatalyst
•Using silica template, a mesoporous Na-Co pyrophospahte was produced.•Adding reduced graphene oxide increased oxygen evolution reaction activity.•An overpotential of 167 mV produced 10 mA cm−2 for oxygen evolution reaction.•Mesoporous Na2CoP2O7 had a surface area of 286 m2 g−1.•Mesoporous Na2CoP2O7...
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| Veröffentlicht in: | Materials letters 2020-10, Vol.277, p.128278, Article 128278 |
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| creator | Loni, E. Siadati, M.H. Shokuhfar, A. |
| description | •Using silica template, a mesoporous Na-Co pyrophospahte was produced.•Adding reduced graphene oxide increased oxygen evolution reaction activity.•An overpotential of 167 mV produced 10 mA cm−2 for oxygen evolution reaction.•Mesoporous Na2CoP2O7 had a surface area of 286 m2 g−1.•Mesoporous Na2CoP2O7/ reduced graphene oxide was stable for 10 h.
In the current work, for the first time, hard-templating method was applied to synthesize mesoporous Na2CoP2O7 powder for oxygen evolution reaction (OER) application. X-ray diffraction patterns (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Brunauer–Emmett–Teller (BET) analyses were carried out for investigating the structure, composition, and morphology of the electrocatalyst powder. The electrocatalytic performances of the mesoporous Na2CoP2O7 (meso-Na2CoP2O7) powder along with its composites with reduced graphene oxide (rGO) were studied by linear sweep voltammetry (LSV). The meso-Na2CoP2O7/rGO (50/50 wt%) composite required only 167 mV overpotential to produce a current density of 10 mA cm−2. |
| doi_str_mv | 10.1016/j.matlet.2020.128278 |
| format | Article |
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In the current work, for the first time, hard-templating method was applied to synthesize mesoporous Na2CoP2O7 powder for oxygen evolution reaction (OER) application. X-ray diffraction patterns (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Brunauer–Emmett–Teller (BET) analyses were carried out for investigating the structure, composition, and morphology of the electrocatalyst powder. The electrocatalytic performances of the mesoporous Na2CoP2O7 (meso-Na2CoP2O7) powder along with its composites with reduced graphene oxide (rGO) were studied by linear sweep voltammetry (LSV). The meso-Na2CoP2O7/rGO (50/50 wt%) composite required only 167 mV overpotential to produce a current density of 10 mA cm−2.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2020.128278</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Diffraction patterns ; Electrocatalysts ; Graphene ; Hard-template ; Materials science ; Mesoporous cobalt pyrophosphate ; Morphology ; Na2CoP2O7 ; OER Catalyst ; Oxygen evolution reactions ; Photoelectrons ; Spectrum analysis ; X ray photoelectron spectroscopy ; X-ray spectroscopy</subject><ispartof>Materials letters, 2020-10, Vol.277, p.128278, Article 128278</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-a0bb506c87a38f4cb42651bb93826d19be0c65bed279c8b918fc82e6c37fad393</citedby><cites>FETCH-LOGICAL-c334t-a0bb506c87a38f4cb42651bb93826d19be0c65bed279c8b918fc82e6c37fad393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X20309836$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Loni, E.</creatorcontrib><creatorcontrib>Siadati, M.H.</creatorcontrib><creatorcontrib>Shokuhfar, A.</creatorcontrib><title>Mesoporous Co-Na pyrophosphate/reduced graphene oxide as an oxygen evolution reaction electrocatalyst</title><title>Materials letters</title><description>•Using silica template, a mesoporous Na-Co pyrophospahte was produced.•Adding reduced graphene oxide increased oxygen evolution reaction activity.•An overpotential of 167 mV produced 10 mA cm−2 for oxygen evolution reaction.•Mesoporous Na2CoP2O7 had a surface area of 286 m2 g−1.•Mesoporous Na2CoP2O7/ reduced graphene oxide was stable for 10 h.
In the current work, for the first time, hard-templating method was applied to synthesize mesoporous Na2CoP2O7 powder for oxygen evolution reaction (OER) application. X-ray diffraction patterns (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Brunauer–Emmett–Teller (BET) analyses were carried out for investigating the structure, composition, and morphology of the electrocatalyst powder. The electrocatalytic performances of the mesoporous Na2CoP2O7 (meso-Na2CoP2O7) powder along with its composites with reduced graphene oxide (rGO) were studied by linear sweep voltammetry (LSV). The meso-Na2CoP2O7/rGO (50/50 wt%) composite required only 167 mV overpotential to produce a current density of 10 mA cm−2.</description><subject>Diffraction patterns</subject><subject>Electrocatalysts</subject><subject>Graphene</subject><subject>Hard-template</subject><subject>Materials science</subject><subject>Mesoporous cobalt pyrophosphate</subject><subject>Morphology</subject><subject>Na2CoP2O7</subject><subject>OER Catalyst</subject><subject>Oxygen evolution reactions</subject><subject>Photoelectrons</subject><subject>Spectrum analysis</subject><subject>X ray photoelectron spectroscopy</subject><subject>X-ray spectroscopy</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LxDAQxYMouK5-Aw8Fz91N0rRJLoIs_oNVLwreQppOd1u6TU3SxX57W-vZ0zyG92Z4P4SuCV4RTLJ1vTro0EBYUUzHFRWUixO0IIInMZNcnqLFaONxyvnnObrwvsYYM4nZAsELeNtZZ3sfbWz8qqNucLbbW9_tdYC1g6I3UEQ7p7s9tBDZ76qASPtIt6MedtBGcLRNHyrbRg60-RXQgAnOGh10M_hwic5K3Xi4-ptL9PFw_755irdvj8-bu21skoSFWOM8T3FmBNeJKJnJGc1SkucyETQriMwBmyzNoaBcGpFLIkojKGQm4aUuEpks0c18t3P2qwcfVG17144vFWVMyKnz5GKzyzjrvYNSda46aDcogtUEVNVqBqomoGoGOsZu5xiMDY4VOOVNBe1Ip3JjW1XY6v8DPw87gyM</recordid><startdate>20201015</startdate><enddate>20201015</enddate><creator>Loni, E.</creator><creator>Siadati, M.H.</creator><creator>Shokuhfar, A.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20201015</creationdate><title>Mesoporous Co-Na pyrophosphate/reduced graphene oxide as an oxygen evolution reaction electrocatalyst</title><author>Loni, E. ; Siadati, M.H. ; Shokuhfar, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-a0bb506c87a38f4cb42651bb93826d19be0c65bed279c8b918fc82e6c37fad393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Diffraction patterns</topic><topic>Electrocatalysts</topic><topic>Graphene</topic><topic>Hard-template</topic><topic>Materials science</topic><topic>Mesoporous cobalt pyrophosphate</topic><topic>Morphology</topic><topic>Na2CoP2O7</topic><topic>OER Catalyst</topic><topic>Oxygen evolution reactions</topic><topic>Photoelectrons</topic><topic>Spectrum analysis</topic><topic>X ray photoelectron spectroscopy</topic><topic>X-ray spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Loni, E.</creatorcontrib><creatorcontrib>Siadati, M.H.</creatorcontrib><creatorcontrib>Shokuhfar, A.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Loni, E.</au><au>Siadati, M.H.</au><au>Shokuhfar, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mesoporous Co-Na pyrophosphate/reduced graphene oxide as an oxygen evolution reaction electrocatalyst</atitle><jtitle>Materials letters</jtitle><date>2020-10-15</date><risdate>2020</risdate><volume>277</volume><spage>128278</spage><pages>128278-</pages><artnum>128278</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>•Using silica template, a mesoporous Na-Co pyrophospahte was produced.•Adding reduced graphene oxide increased oxygen evolution reaction activity.•An overpotential of 167 mV produced 10 mA cm−2 for oxygen evolution reaction.•Mesoporous Na2CoP2O7 had a surface area of 286 m2 g−1.•Mesoporous Na2CoP2O7/ reduced graphene oxide was stable for 10 h.
In the current work, for the first time, hard-templating method was applied to synthesize mesoporous Na2CoP2O7 powder for oxygen evolution reaction (OER) application. X-ray diffraction patterns (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Brunauer–Emmett–Teller (BET) analyses were carried out for investigating the structure, composition, and morphology of the electrocatalyst powder. The electrocatalytic performances of the mesoporous Na2CoP2O7 (meso-Na2CoP2O7) powder along with its composites with reduced graphene oxide (rGO) were studied by linear sweep voltammetry (LSV). The meso-Na2CoP2O7/rGO (50/50 wt%) composite required only 167 mV overpotential to produce a current density of 10 mA cm−2.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2020.128278</doi></addata></record> |
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| subjects | Diffraction patterns Electrocatalysts Graphene Hard-template Materials science Mesoporous cobalt pyrophosphate Morphology Na2CoP2O7 OER Catalyst Oxygen evolution reactions Photoelectrons Spectrum analysis X ray photoelectron spectroscopy X-ray spectroscopy |
| title | Mesoporous Co-Na pyrophosphate/reduced graphene oxide as an oxygen evolution reaction electrocatalyst |
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