Synthesis of NiO granular nanospheres as a novel material for high-performance supercapacitors
[Display omitted] •Hydrothermally-derived synthesis was proposed to prepare NiO spheres.•Granular morphology plays a major role in improving electrochemical properties.•Electrode based on NiO spheres demonstrate high capacity and good cycling stability. We report a facile method for synthesizing NiO...
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| Veröffentlicht in: | Materials letters 2020-11, Vol.279, p.128478, Article 128478 |
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| container_title | Materials letters |
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| creator | Gurenko, V.E. Popkov, V.I. Lobinsky, A.A. |
| description | [Display omitted]
•Hydrothermally-derived synthesis was proposed to prepare NiO spheres.•Granular morphology plays a major role in improving electrochemical properties.•Electrode based on NiO spheres demonstrate high capacity and good cycling stability.
We report a facile method for synthesizing NiO nanospheres with cubic structure and peculiar, so-called, granular morphology by two steps: first, porous carbon spheres were hydrothermally treated in Ni(NO3)2 and (NH2)2CO for 6 h at 110 °C and then annealed in the air for 4 h at 550 °C. The sample-based electrode for supercapacitor demonstrates advanced electrochemical characteristics: its specific capacity is 1315 F/g at 1 A/g and only 1% of total capacity is lost after 1000 charge–discharge cycles. We believe that these nanospheres are promising candidates for energy storage devices or electrocatalysts (i.e. in hydrogen evolution reaction). |
| doi_str_mv | 10.1016/j.matlet.2020.128478 |
| format | Article |
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•Hydrothermally-derived synthesis was proposed to prepare NiO spheres.•Granular morphology plays a major role in improving electrochemical properties.•Electrode based on NiO spheres demonstrate high capacity and good cycling stability.
We report a facile method for synthesizing NiO nanospheres with cubic structure and peculiar, so-called, granular morphology by two steps: first, porous carbon spheres were hydrothermally treated in Ni(NO3)2 and (NH2)2CO for 6 h at 110 °C and then annealed in the air for 4 h at 550 °C. The sample-based electrode for supercapacitor demonstrates advanced electrochemical characteristics: its specific capacity is 1315 F/g at 1 A/g and only 1% of total capacity is lost after 1000 charge–discharge cycles. We believe that these nanospheres are promising candidates for energy storage devices or electrocatalysts (i.e. in hydrogen evolution reaction).</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2020.128478</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Electrocatalysts ; Energy storage ; Hydrogen evolution reactions ; Hydrothermal synthesis ; Materials science ; Morphology ; Nanocrystalline materials ; Nanoparticles ; Nanospheres ; Nickel oxide ; Nickel oxides ; Supercapacitor ; Supercapacitors</subject><ispartof>Materials letters, 2020-11, Vol.279, p.128478, Article 128478</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Nov 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-ab8fdf193b0b825858d3fca47f92c70784cab42c4e6962695f2f324b787d85103</citedby><cites>FETCH-LOGICAL-c334t-ab8fdf193b0b825858d3fca47f92c70784cab42c4e6962695f2f324b787d85103</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2020.128478$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3538,27906,27907,45977</link.rule.ids></links><search><creatorcontrib>Gurenko, V.E.</creatorcontrib><creatorcontrib>Popkov, V.I.</creatorcontrib><creatorcontrib>Lobinsky, A.A.</creatorcontrib><title>Synthesis of NiO granular nanospheres as a novel material for high-performance supercapacitors</title><title>Materials letters</title><description>[Display omitted]
•Hydrothermally-derived synthesis was proposed to prepare NiO spheres.•Granular morphology plays a major role in improving electrochemical properties.•Electrode based on NiO spheres demonstrate high capacity and good cycling stability.
We report a facile method for synthesizing NiO nanospheres with cubic structure and peculiar, so-called, granular morphology by two steps: first, porous carbon spheres were hydrothermally treated in Ni(NO3)2 and (NH2)2CO for 6 h at 110 °C and then annealed in the air for 4 h at 550 °C. The sample-based electrode for supercapacitor demonstrates advanced electrochemical characteristics: its specific capacity is 1315 F/g at 1 A/g and only 1% of total capacity is lost after 1000 charge–discharge cycles. We believe that these nanospheres are promising candidates for energy storage devices or electrocatalysts (i.e. in hydrogen evolution reaction).</description><subject>Electrocatalysts</subject><subject>Energy storage</subject><subject>Hydrogen evolution reactions</subject><subject>Hydrothermal synthesis</subject><subject>Materials science</subject><subject>Morphology</subject><subject>Nanocrystalline materials</subject><subject>Nanoparticles</subject><subject>Nanospheres</subject><subject>Nickel oxide</subject><subject>Nickel oxides</subject><subject>Supercapacitor</subject><subject>Supercapacitors</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9UE1LxDAQDaLguvoPPAQ8d03TtEkvgix-weIeVPBkSNPJNqXb1KRd2H9vpJ6FYb547w3zELpOySolaXHbrvZq7GBcUULjigrGxQlapIJnCSt5eYoWEcaTnPPPc3QRQksIYSVhC_T1duzHBoIN2Bn8ard451U_dcrjXvUuDA14CFjFwL07QIfjKfBWddg4jxu7a5IBfOz3qteAwxQnrQal7eh8uERnRnUBrv7qEn08Pryvn5PN9ullfb9JdJaxMVGVMLVJy6wilaC5yEWdGa0YNyXVnHDBtKoY1QyKsqBFmRtqMsoqLngt8pRkS3Qz6w7efU8QRtm6yffxpKSsiAJFTBHFZpT2LgQPRg7e7pU_ypTIXydlK2cn5a-TcnYy0u5mGsQPDha8DNpC_La2HvQoa2f_F_gB2iN_Pg</recordid><startdate>20201115</startdate><enddate>20201115</enddate><creator>Gurenko, V.E.</creator><creator>Popkov, V.I.</creator><creator>Lobinsky, A.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>20201115</creationdate><title>Synthesis of NiO granular nanospheres as a novel material for high-performance supercapacitors</title><author>Gurenko, V.E. ; Popkov, V.I. ; Lobinsky, A.A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-ab8fdf193b0b825858d3fca47f92c70784cab42c4e6962695f2f324b787d85103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Electrocatalysts</topic><topic>Energy storage</topic><topic>Hydrogen evolution reactions</topic><topic>Hydrothermal synthesis</topic><topic>Materials science</topic><topic>Morphology</topic><topic>Nanocrystalline materials</topic><topic>Nanoparticles</topic><topic>Nanospheres</topic><topic>Nickel oxide</topic><topic>Nickel oxides</topic><topic>Supercapacitor</topic><topic>Supercapacitors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gurenko, V.E.</creatorcontrib><creatorcontrib>Popkov, V.I.</creatorcontrib><creatorcontrib>Lobinsky, A.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>Gurenko, V.E.</au><au>Popkov, V.I.</au><au>Lobinsky, A.A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of NiO granular nanospheres as a novel material for high-performance supercapacitors</atitle><jtitle>Materials letters</jtitle><date>2020-11-15</date><risdate>2020</risdate><volume>279</volume><spage>128478</spage><pages>128478-</pages><artnum>128478</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>[Display omitted]
•Hydrothermally-derived synthesis was proposed to prepare NiO spheres.•Granular morphology plays a major role in improving electrochemical properties.•Electrode based on NiO spheres demonstrate high capacity and good cycling stability.
We report a facile method for synthesizing NiO nanospheres with cubic structure and peculiar, so-called, granular morphology by two steps: first, porous carbon spheres were hydrothermally treated in Ni(NO3)2 and (NH2)2CO for 6 h at 110 °C and then annealed in the air for 4 h at 550 °C. The sample-based electrode for supercapacitor demonstrates advanced electrochemical characteristics: its specific capacity is 1315 F/g at 1 A/g and only 1% of total capacity is lost after 1000 charge–discharge cycles. We believe that these nanospheres are promising candidates for energy storage devices or electrocatalysts (i.e. in hydrogen evolution reaction).</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2020.128478</doi></addata></record> |
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| ispartof | Materials letters, 2020-11, Vol.279, p.128478, Article 128478 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Electrocatalysts Energy storage Hydrogen evolution reactions Hydrothermal synthesis Materials science Morphology Nanocrystalline materials Nanoparticles Nanospheres Nickel oxide Nickel oxides Supercapacitor Supercapacitors |
| title | Synthesis of NiO granular nanospheres as a novel material for high-performance supercapacitors |
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