Microwave-assisted synthesis of CuO/MnO2 nanocomposites for supercapacitor application
Copper oxide/manganese dioxide (CuO/MnO2) nanocomposites were prepared by a facile microwave-assisted synthesis method in an ordinary household microwave oven and used for electrochemical supercapacitor. The nanocomposites were characterised by scanning electron microscopy, transmission electron mic...
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| Veröffentlicht in: | Micro & nano letters 2020-11, Vol.15 (13), p.938-942 |
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| creator | Zhang, Pengjiao Li, Wei |
| description | Copper oxide/manganese dioxide (CuO/MnO2) nanocomposites were prepared by a facile microwave-assisted synthesis method in an ordinary household microwave oven and used for electrochemical supercapacitor. The nanocomposites were characterised by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. Electrochemical results demonstrate that CuO/MnO2 nanocomposites have better capacitance performance than pure CuO material. The CuO/MnO2 nanocomposites have a high specific capacitance of 499.0 F/g at a current density of 0.5 A/g in 6 M KOH electrolyte. In addition, an asymmetric supercapacitor with activated carbon as a negative electrode and CuO/MnO2 nanocomposite as a positive electrode was also successfully prepared. This asymmetric device exhibits a high energy density of 32.07 Wh/kg at a power density of 375.02 W/kg and fairly good cycling stability. |
| doi_str_mv | 10.1049/mnl.2020.0400 |
| format | Article |
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The nanocomposites were characterised by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. Electrochemical results demonstrate that CuO/MnO2 nanocomposites have better capacitance performance than pure CuO material. The CuO/MnO2 nanocomposites have a high specific capacitance of 499.0 F/g at a current density of 0.5 A/g in 6 M KOH electrolyte. In addition, an asymmetric supercapacitor with activated carbon as a negative electrode and CuO/MnO2 nanocomposite as a positive electrode was also successfully prepared. This asymmetric device exhibits a high energy density of 32.07 Wh/kg at a power density of 375.02 W/kg and fairly good cycling stability.</description><identifier>ISSN: 1750-0443</identifier><identifier>EISSN: 1750-0443</identifier><identifier>DOI: 10.1049/mnl.2020.0400</identifier><language>eng</language><publisher>Stevenage: The Institution of Engineering and Technology</publisher><subject>Activated carbon ; Asymmetry ; Capacitance ; copper compounds ; Copper oxides ; copper oxide‐manganese dioxide ; CuO‐MnO2 ; CuO‐MnO2 nanocomposites ; current density ; cycling stability ; electrochemical electrodes ; electrochemical supercapacitor ; Electrodes ; electrolytes ; Electron microscopes ; Electron microscopy ; energy density ; Flux density ; KOH electrolyte ; manganese compounds ; Manganese dioxide ; Microscopy ; microwave materials processing ; microwave oven ; microwave ovens ; Microwaves ; microwave‐assisted synthesis ; Nanocomposites ; nanofabrication ; negative electrode ; Photoelectrons ; power density ; scanning electron microscopy ; semiconductor growth ; semiconductor materials ; specific capacitance ; supercapacitor ; Supercapacitors ; Synthesis ; transmission electron microscopy ; X‐ray diffraction ; X‐ray photoelectron spectra ; X‐ray photoelectron spectroscopy</subject><ispartof>Micro & nano letters, 2020-11, Vol.15 (13), p.938-942</ispartof><rights>The Institution of Engineering and Technology</rights><rights>2020 The Institution of Engineering and Technology</rights><rights>Copyright The Institution of Engineering & Technology Nov 18, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1049%2Fmnl.2020.0400$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1049%2Fmnl.2020.0400$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,11541,27901,27902,45550,45551,46027,46451</link.rule.ids><linktorsrc>$$Uhttps://onlinelibrary.wiley.com/doi/abs/10.1049%2Fmnl.2020.0400$$EView_record_in_Wiley-Blackwell$$FView_record_in_$$GWiley-Blackwell</linktorsrc></links><search><creatorcontrib>Zhang, Pengjiao</creatorcontrib><creatorcontrib>Li, Wei</creatorcontrib><title>Microwave-assisted synthesis of CuO/MnO2 nanocomposites for supercapacitor application</title><title>Micro & nano letters</title><description>Copper oxide/manganese dioxide (CuO/MnO2) nanocomposites were prepared by a facile microwave-assisted synthesis method in an ordinary household microwave oven and used for electrochemical supercapacitor. The nanocomposites were characterised by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. Electrochemical results demonstrate that CuO/MnO2 nanocomposites have better capacitance performance than pure CuO material. The CuO/MnO2 nanocomposites have a high specific capacitance of 499.0 F/g at a current density of 0.5 A/g in 6 M KOH electrolyte. In addition, an asymmetric supercapacitor with activated carbon as a negative electrode and CuO/MnO2 nanocomposite as a positive electrode was also successfully prepared. This asymmetric device exhibits a high energy density of 32.07 Wh/kg at a power density of 375.02 W/kg and fairly good cycling stability.</description><subject>Activated carbon</subject><subject>Asymmetry</subject><subject>Capacitance</subject><subject>copper compounds</subject><subject>Copper oxides</subject><subject>copper oxide‐manganese dioxide</subject><subject>CuO‐MnO2</subject><subject>CuO‐MnO2 nanocomposites</subject><subject>current density</subject><subject>cycling stability</subject><subject>electrochemical electrodes</subject><subject>electrochemical supercapacitor</subject><subject>Electrodes</subject><subject>electrolytes</subject><subject>Electron microscopes</subject><subject>Electron microscopy</subject><subject>energy density</subject><subject>Flux density</subject><subject>KOH electrolyte</subject><subject>manganese compounds</subject><subject>Manganese dioxide</subject><subject>Microscopy</subject><subject>microwave materials processing</subject><subject>microwave oven</subject><subject>microwave ovens</subject><subject>Microwaves</subject><subject>microwave‐assisted synthesis</subject><subject>Nanocomposites</subject><subject>nanofabrication</subject><subject>negative electrode</subject><subject>Photoelectrons</subject><subject>power density</subject><subject>scanning electron microscopy</subject><subject>semiconductor growth</subject><subject>semiconductor materials</subject><subject>specific capacitance</subject><subject>supercapacitor</subject><subject>Supercapacitors</subject><subject>Synthesis</subject><subject>transmission electron microscopy</subject><subject>X‐ray diffraction</subject><subject>X‐ray photoelectron spectra</subject><subject>X‐ray photoelectron spectroscopy</subject><issn>1750-0443</issn><issn>1750-0443</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNptkD1PwzAQhi0EEqUwskdCDAxpzx9x4rFUFJCadgFWy3Uc4SqNTZxQ9d-TqgwZOt2d9LzvSQ9C9xgmGJiY7upqQoDABBjABRrhNIEYGKOXg_0a3YSwBWApScUIfeVWN26vfk2sQrChNUUUDnX7bfojcmU079bTvF6TqFa1027nXbCtCVHpmih03jRaeaVt25_K-8pq1VpX36KrUlXB3P3PMfpcvHzM3-Ll-vV9PlvGlgiWxUZzStUGjGFYbJKNIFilnBagNDUsYQrKJONaZakBQWlSZlwxIUAD55CZgo7Rw6nXN-6nM6GVW9c1df9SEsYpF5iLtKf4idrbyhykb-xONQeJQR69yd6bPHqTR28yX83I8wKwoFkffDwFrRk056vlgPdF2XNPZ7iz_fQPxZ59IA</recordid><startdate>20201118</startdate><enddate>20201118</enddate><creator>Zhang, Pengjiao</creator><creator>Li, Wei</creator><general>The Institution of Engineering and Technology</general><general>John Wiley & Sons, Inc</general><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20201118</creationdate><title>Microwave-assisted synthesis of CuO/MnO2 nanocomposites for supercapacitor application</title><author>Zhang, Pengjiao ; Li, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i2948-ec633ab0ee419b5b921a763d0ac3e454a0f586ca87e09335f86a4990c06608ed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activated carbon</topic><topic>Asymmetry</topic><topic>Capacitance</topic><topic>copper compounds</topic><topic>Copper oxides</topic><topic>copper oxide‐manganese dioxide</topic><topic>CuO‐MnO2</topic><topic>CuO‐MnO2 nanocomposites</topic><topic>current density</topic><topic>cycling stability</topic><topic>electrochemical electrodes</topic><topic>electrochemical supercapacitor</topic><topic>Electrodes</topic><topic>electrolytes</topic><topic>Electron microscopes</topic><topic>Electron microscopy</topic><topic>energy density</topic><topic>Flux density</topic><topic>KOH electrolyte</topic><topic>manganese compounds</topic><topic>Manganese dioxide</topic><topic>Microscopy</topic><topic>microwave materials processing</topic><topic>microwave oven</topic><topic>microwave ovens</topic><topic>Microwaves</topic><topic>microwave‐assisted synthesis</topic><topic>Nanocomposites</topic><topic>nanofabrication</topic><topic>negative electrode</topic><topic>Photoelectrons</topic><topic>power density</topic><topic>scanning electron microscopy</topic><topic>semiconductor growth</topic><topic>semiconductor materials</topic><topic>specific capacitance</topic><topic>supercapacitor</topic><topic>Supercapacitors</topic><topic>Synthesis</topic><topic>transmission electron microscopy</topic><topic>X‐ray diffraction</topic><topic>X‐ray photoelectron spectra</topic><topic>X‐ray photoelectron spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Pengjiao</creatorcontrib><creatorcontrib>Li, Wei</creatorcontrib><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Micro & nano letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zhang, Pengjiao</au><au>Li, Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microwave-assisted synthesis of CuO/MnO2 nanocomposites for supercapacitor application</atitle><jtitle>Micro & nano letters</jtitle><date>2020-11-18</date><risdate>2020</risdate><volume>15</volume><issue>13</issue><spage>938</spage><epage>942</epage><pages>938-942</pages><issn>1750-0443</issn><eissn>1750-0443</eissn><abstract>Copper oxide/manganese dioxide (CuO/MnO2) nanocomposites were prepared by a facile microwave-assisted synthesis method in an ordinary household microwave oven and used for electrochemical supercapacitor. The nanocomposites were characterised by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. Electrochemical results demonstrate that CuO/MnO2 nanocomposites have better capacitance performance than pure CuO material. The CuO/MnO2 nanocomposites have a high specific capacitance of 499.0 F/g at a current density of 0.5 A/g in 6 M KOH electrolyte. In addition, an asymmetric supercapacitor with activated carbon as a negative electrode and CuO/MnO2 nanocomposite as a positive electrode was also successfully prepared. This asymmetric device exhibits a high energy density of 32.07 Wh/kg at a power density of 375.02 W/kg and fairly good cycling stability.</abstract><cop>Stevenage</cop><pub>The Institution of Engineering and Technology</pub><doi>10.1049/mnl.2020.0400</doi><tpages>5</tpages></addata></record> |
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| subjects | Activated carbon Asymmetry Capacitance copper compounds Copper oxides copper oxide‐manganese dioxide CuO‐MnO2 CuO‐MnO2 nanocomposites current density cycling stability electrochemical electrodes electrochemical supercapacitor Electrodes electrolytes Electron microscopes Electron microscopy energy density Flux density KOH electrolyte manganese compounds Manganese dioxide Microscopy microwave materials processing microwave oven microwave ovens Microwaves microwave‐assisted synthesis Nanocomposites nanofabrication negative electrode Photoelectrons power density scanning electron microscopy semiconductor growth semiconductor materials specific capacitance supercapacitor Supercapacitors Synthesis transmission electron microscopy X‐ray diffraction X‐ray photoelectron spectra X‐ray photoelectron spectroscopy |
| title | Microwave-assisted synthesis of CuO/MnO2 nanocomposites for supercapacitor application |
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