NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors
Herein, well-designed NiCo layered double hydroxide (NiCo-LDH) nanocages are prepared by a simple Cu 2 O template etching method. Due to their unique hollow structures and synergistic effects, NiCo-LDH-1 (molar ratio of Ni and Co is 1 : 1) nanocages exhibit superior capacitance (1671 F g −1 @1 A g −...
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| Veröffentlicht in: | Inorganic chemistry frontiers 2023-03, Vol.1 (7), p.2154-2164 |
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| container_title | Inorganic chemistry frontiers |
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| creator | Jiang, Hualin Ke, Qi Qiu, Xianhua Chen, Jiezeng Chen, Pinghua Wang, Shuai Luo, Xubiao Rao, Bingying |
| description | Herein, well-designed NiCo layered double hydroxide (NiCo-LDH) nanocages are prepared by a simple Cu
2
O template etching method. Due to their unique hollow structures and synergistic effects, NiCo-LDH-1 (molar ratio of Ni and Co is 1 : 1) nanocages exhibit superior capacitance (1671 F g
−1
@1 A g
−1
) in a three-electrode system. In addition, a supercapacitor device is prepared with NiCo-LDH-1 nanocages as the cathode and active carbon (AC) as the anode which shows a maximum energy density of 59.0 W h kg
−1
@935.7 W kg
−1
power density and displays high cycling stability with a capacitance retention rate of 87.1% after 10 000 cycles at 10 A g
−1
. A light emitting diode was powered by the assembled supercapacitor and remained illuminated for ∼12 min. In order to understand the charge storage mechanism of supercapacitors during the electrochemical charge/discharge process, the structure of NiCo-LDH-1 was studied in detail by
in situ
X-Ray Diffraction (XRD).
NiCo-LDH nanocages with high specific capacity, energy densities and good capacity retention are prepared with a Cu
2
O template etching method. |
| doi_str_mv | 10.1039/d2qi02763a |
| format | Article |
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2
O template etching method. Due to their unique hollow structures and synergistic effects, NiCo-LDH-1 (molar ratio of Ni and Co is 1 : 1) nanocages exhibit superior capacitance (1671 F g
−1
@1 A g
−1
) in a three-electrode system. In addition, a supercapacitor device is prepared with NiCo-LDH-1 nanocages as the cathode and active carbon (AC) as the anode which shows a maximum energy density of 59.0 W h kg
−1
@935.7 W kg
−1
power density and displays high cycling stability with a capacitance retention rate of 87.1% after 10 000 cycles at 10 A g
−1
. A light emitting diode was powered by the assembled supercapacitor and remained illuminated for ∼12 min. In order to understand the charge storage mechanism of supercapacitors during the electrochemical charge/discharge process, the structure of NiCo-LDH-1 was studied in detail by
in situ
X-Ray Diffraction (XRD).
NiCo-LDH nanocages with high specific capacity, energy densities and good capacity retention are prepared with a Cu
2
O template etching method.</description><identifier>ISSN: 2052-1553</identifier><identifier>ISSN: 2052-1545</identifier><identifier>EISSN: 2052-1553</identifier><identifier>DOI: 10.1039/d2qi02763a</identifier><language>eng</language><publisher>London: Royal Society of Chemistry</publisher><subject>Activated carbon ; Capacitance ; Hydroxides ; Inorganic chemistry ; Intermetallic compounds ; Light emitting diodes ; Supercapacitors ; Synergistic effect</subject><ispartof>Inorganic chemistry frontiers, 2023-03, Vol.1 (7), p.2154-2164</ispartof><rights>Copyright Royal Society of Chemistry 2023</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c281t-4ddb3fc5a5448b18fb314b6ab39f589c2c105b83650a2feb6e1c882f808820743</citedby><cites>FETCH-LOGICAL-c281t-4ddb3fc5a5448b18fb314b6ab39f589c2c105b83650a2feb6e1c882f808820743</cites><orcidid>0000-0003-2738-1723 ; 0000-0001-5711-1252</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Jiang, Hualin</creatorcontrib><creatorcontrib>Ke, Qi</creatorcontrib><creatorcontrib>Qiu, Xianhua</creatorcontrib><creatorcontrib>Chen, Jiezeng</creatorcontrib><creatorcontrib>Chen, Pinghua</creatorcontrib><creatorcontrib>Wang, Shuai</creatorcontrib><creatorcontrib>Luo, Xubiao</creatorcontrib><creatorcontrib>Rao, Bingying</creatorcontrib><title>NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors</title><title>Inorganic chemistry frontiers</title><description>Herein, well-designed NiCo layered double hydroxide (NiCo-LDH) nanocages are prepared by a simple Cu
2
O template etching method. Due to their unique hollow structures and synergistic effects, NiCo-LDH-1 (molar ratio of Ni and Co is 1 : 1) nanocages exhibit superior capacitance (1671 F g
−1
@1 A g
−1
) in a three-electrode system. In addition, a supercapacitor device is prepared with NiCo-LDH-1 nanocages as the cathode and active carbon (AC) as the anode which shows a maximum energy density of 59.0 W h kg
−1
@935.7 W kg
−1
power density and displays high cycling stability with a capacitance retention rate of 87.1% after 10 000 cycles at 10 A g
−1
. A light emitting diode was powered by the assembled supercapacitor and remained illuminated for ∼12 min. In order to understand the charge storage mechanism of supercapacitors during the electrochemical charge/discharge process, the structure of NiCo-LDH-1 was studied in detail by
in situ
X-Ray Diffraction (XRD).
NiCo-LDH nanocages with high specific capacity, energy densities and good capacity retention are prepared with a Cu
2
O template etching method.</description><subject>Activated carbon</subject><subject>Capacitance</subject><subject>Hydroxides</subject><subject>Inorganic chemistry</subject><subject>Intermetallic compounds</subject><subject>Light emitting diodes</subject><subject>Supercapacitors</subject><subject>Synergistic effect</subject><issn>2052-1553</issn><issn>2052-1545</issn><issn>2052-1553</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpNkF1LwzAUhoMoOOZuvBcC3gnVk6Rp08sxvwZDERQvS5ImW8badEkL9t9bnag357zwPpwDD0LnBK4JsOKmonsHNM-YPEITCpwmhHN2_C-folmMWwAgJAWSwQS9P7mFxzs5mGAqXPle7QzeDFXwH64yuJGN13JtIrY-4I1bb5LWhDHXstEGyzjUtemC0zj2Y6FlK7XrfIhn6MTKXTSznz1Fb_d3r4vHZPX8sFzMV4mmgnRJWlWKWc0lT1OhiLCKkVRlUrHCclFoqglwJVjGQVJrVGaIFoJaAeOEPGVTdHm42wa_703syq3vQzO-LGleEE5ZnpGRujpQOvgYg7FlG1wtw1ASKL_clbf0Zfntbj7CFwc4RP3L_blln8iZa68</recordid><startdate>20230328</startdate><enddate>20230328</enddate><creator>Jiang, Hualin</creator><creator>Ke, Qi</creator><creator>Qiu, Xianhua</creator><creator>Chen, Jiezeng</creator><creator>Chen, Pinghua</creator><creator>Wang, Shuai</creator><creator>Luo, Xubiao</creator><creator>Rao, Bingying</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0003-2738-1723</orcidid><orcidid>https://orcid.org/0000-0001-5711-1252</orcidid></search><sort><creationdate>20230328</creationdate><title>NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors</title><author>Jiang, Hualin ; Ke, Qi ; Qiu, Xianhua ; Chen, Jiezeng ; Chen, Pinghua ; Wang, Shuai ; Luo, Xubiao ; Rao, Bingying</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c281t-4ddb3fc5a5448b18fb314b6ab39f589c2c105b83650a2feb6e1c882f808820743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Activated carbon</topic><topic>Capacitance</topic><topic>Hydroxides</topic><topic>Inorganic chemistry</topic><topic>Intermetallic compounds</topic><topic>Light emitting diodes</topic><topic>Supercapacitors</topic><topic>Synergistic effect</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jiang, Hualin</creatorcontrib><creatorcontrib>Ke, Qi</creatorcontrib><creatorcontrib>Qiu, Xianhua</creatorcontrib><creatorcontrib>Chen, Jiezeng</creatorcontrib><creatorcontrib>Chen, Pinghua</creatorcontrib><creatorcontrib>Wang, Shuai</creatorcontrib><creatorcontrib>Luo, Xubiao</creatorcontrib><creatorcontrib>Rao, Bingying</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Inorganic chemistry frontiers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jiang, Hualin</au><au>Ke, Qi</au><au>Qiu, Xianhua</au><au>Chen, Jiezeng</au><au>Chen, Pinghua</au><au>Wang, Shuai</au><au>Luo, Xubiao</au><au>Rao, Bingying</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors</atitle><jtitle>Inorganic chemistry frontiers</jtitle><date>2023-03-28</date><risdate>2023</risdate><volume>1</volume><issue>7</issue><spage>2154</spage><epage>2164</epage><pages>2154-2164</pages><issn>2052-1553</issn><issn>2052-1545</issn><eissn>2052-1553</eissn><abstract>Herein, well-designed NiCo layered double hydroxide (NiCo-LDH) nanocages are prepared by a simple Cu
2
O template etching method. Due to their unique hollow structures and synergistic effects, NiCo-LDH-1 (molar ratio of Ni and Co is 1 : 1) nanocages exhibit superior capacitance (1671 F g
−1
@1 A g
−1
) in a three-electrode system. In addition, a supercapacitor device is prepared with NiCo-LDH-1 nanocages as the cathode and active carbon (AC) as the anode which shows a maximum energy density of 59.0 W h kg
−1
@935.7 W kg
−1
power density and displays high cycling stability with a capacitance retention rate of 87.1% after 10 000 cycles at 10 A g
−1
. A light emitting diode was powered by the assembled supercapacitor and remained illuminated for ∼12 min. In order to understand the charge storage mechanism of supercapacitors during the electrochemical charge/discharge process, the structure of NiCo-LDH-1 was studied in detail by
in situ
X-Ray Diffraction (XRD).
NiCo-LDH nanocages with high specific capacity, energy densities and good capacity retention are prepared with a Cu
2
O template etching method.</abstract><cop>London</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d2qi02763a</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-2738-1723</orcidid><orcidid>https://orcid.org/0000-0001-5711-1252</orcidid></addata></record> |
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| ispartof | Inorganic chemistry frontiers, 2023-03, Vol.1 (7), p.2154-2164 |
| issn | 2052-1553 2052-1545 2052-1553 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Activated carbon Capacitance Hydroxides Inorganic chemistry Intermetallic compounds Light emitting diodes Supercapacitors Synergistic effect |
| title | NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors |
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