Defect-rich CeO2 in a hollow carbon matrix engineered from a microporous organic platform: a hydroxide-assisted high performance pseudocapacitive material
A microporous organic polymer (MOP) was utilized for the engineering of nanoparticulate CeO2 in a hollow carbon matrix (H-C/CeO2). After CeO2 nanoparticles were incorporated into a hollow MOP platform (H-MOP) through the decomposition of cerium acetate, successive carbonization produced H-C/CeO2. Th...
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| Veröffentlicht in: | Nanoscale 2021-11, Vol.13 (43), p.18173-18181 |
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| creator | Jeong, Hyeon Seok Chang Wan Kang Yoon, Myung Sang Moon Lee Hae Jin Kim Son, Seung Uk |
| description | A microporous organic polymer (MOP) was utilized for the engineering of nanoparticulate CeO2 in a hollow carbon matrix (H-C/CeO2). After CeO2 nanoparticles were incorporated into a hollow MOP platform (H-MOP) through the decomposition of cerium acetate, successive carbonization produced H-C/CeO2. The redox feature of defective CeO2 in a conductive carbon matrix induced promising pseudocapacitive behavior. In particular, the H-C/CeO2 showed excellent electrochemical performance in an alkaline electrolyte (KOH), due to the hydroxide ion-assisted redox behavior of defective CeO2. H-C/CeO2-3 with an optimized amount of CeO2 showed specific capacitances of up to 527 (@0.5 A g−1) and 493 F g−1 (@1 A g−1). Even at high current densities of 10 and 20 A g−1, the H-C/CeO2-3 maintained high capacitances of 458 and 440 F g−1, respectively. After 10 000 cycling tests, the H-C/CeO2-3 retained the 94–95% capacitance of the first cycle. |
| doi_str_mv | 10.1039/d1nr05052d |
| format | Article |
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After CeO2 nanoparticles were incorporated into a hollow MOP platform (H-MOP) through the decomposition of cerium acetate, successive carbonization produced H-C/CeO2. The redox feature of defective CeO2 in a conductive carbon matrix induced promising pseudocapacitive behavior. In particular, the H-C/CeO2 showed excellent electrochemical performance in an alkaline electrolyte (KOH), due to the hydroxide ion-assisted redox behavior of defective CeO2. H-C/CeO2-3 with an optimized amount of CeO2 showed specific capacitances of up to 527 (@0.5 A g−1) and 493 F g−1 (@1 A g−1). Even at high current densities of 10 and 20 A g−1, the H-C/CeO2-3 maintained high capacitances of 458 and 440 F g−1, respectively. After 10 000 cycling tests, the H-C/CeO2-3 retained the 94–95% capacitance of the first cycle.</description><identifier>ISSN: 2040-3364</identifier><identifier>EISSN: 2040-3372</identifier><identifier>DOI: 10.1039/d1nr05052d</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Carbon ; Cerium oxides ; Electrochemical analysis ; Nanoparticles</subject><ispartof>Nanoscale, 2021-11, Vol.13 (43), p.18173-18181</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Jeong, Hyeon Seok</creatorcontrib><creatorcontrib>Chang Wan Kang</creatorcontrib><creatorcontrib>Yoon, Myung</creatorcontrib><creatorcontrib>Sang Moon Lee</creatorcontrib><creatorcontrib>Hae Jin Kim</creatorcontrib><creatorcontrib>Son, Seung Uk</creatorcontrib><title>Defect-rich CeO2 in a hollow carbon matrix engineered from a microporous organic platform: a hydroxide-assisted high performance pseudocapacitive material</title><title>Nanoscale</title><description>A microporous organic polymer (MOP) was utilized for the engineering of nanoparticulate CeO2 in a hollow carbon matrix (H-C/CeO2). After CeO2 nanoparticles were incorporated into a hollow MOP platform (H-MOP) through the decomposition of cerium acetate, successive carbonization produced H-C/CeO2. The redox feature of defective CeO2 in a conductive carbon matrix induced promising pseudocapacitive behavior. In particular, the H-C/CeO2 showed excellent electrochemical performance in an alkaline electrolyte (KOH), due to the hydroxide ion-assisted redox behavior of defective CeO2. H-C/CeO2-3 with an optimized amount of CeO2 showed specific capacitances of up to 527 (@0.5 A g−1) and 493 F g−1 (@1 A g−1). Even at high current densities of 10 and 20 A g−1, the H-C/CeO2-3 maintained high capacitances of 458 and 440 F g−1, respectively. After 10 000 cycling tests, the H-C/CeO2-3 retained the 94–95% capacitance of the first cycle.</description><subject>Carbon</subject><subject>Cerium oxides</subject><subject>Electrochemical analysis</subject><subject>Nanoparticles</subject><issn>2040-3364</issn><issn>2040-3372</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpdj81OwzAQhC0EEqVw4QksceEScGzHibmh8itV6gXOlX82javEDnYC5VV4WlKBOHBYzR6-md1B6DwnVzlh8trmPpKCFNQeoBklnGSMlfTwbxf8GJ2ktCVESCbYDH3dQQ1myKIzDV7AimLnscJNaNvwgY2KOnjcqSG6HQa_cR4ggsV1DN2Edc7E0IcYxoRD3CjvDO5bNdQhdjf7mE8bw85ZyFRKLg2Ts3GbBvcQ94jyBnCfYLTBqF4ZN7h32F-D6FR7io5q1SY4-9U5en24f1k8ZcvV4_Pidpn1ORdDxrUwUtm6spURhbA5L6SRFQNdaMo04ZZoLgSFUkGpqSZlLVVuAIQ0TBDJ5ujyJ7eP4W2ENKw7lwy0rfIwFVvTohJSTsMn9OIfug1j9NN3EyUFEZQywr4BDtt63A</recordid><startdate>20211111</startdate><enddate>20211111</enddate><creator>Jeong, Hyeon Seok</creator><creator>Chang Wan Kang</creator><creator>Yoon, Myung</creator><creator>Sang Moon Lee</creator><creator>Hae Jin Kim</creator><creator>Son, Seung Uk</creator><general>Royal Society of Chemistry</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20211111</creationdate><title>Defect-rich CeO2 in a hollow carbon matrix engineered from a microporous organic platform: a hydroxide-assisted high performance pseudocapacitive material</title><author>Jeong, Hyeon Seok ; Chang Wan Kang ; Yoon, Myung ; Sang Moon Lee ; Hae Jin Kim ; Son, Seung Uk</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p146t-4b6c9adf8d8c656d1459c983eb5b23b04d0b4662e7ae7b2b07f9a1cee69c36093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Carbon</topic><topic>Cerium oxides</topic><topic>Electrochemical analysis</topic><topic>Nanoparticles</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jeong, Hyeon Seok</creatorcontrib><creatorcontrib>Chang Wan Kang</creatorcontrib><creatorcontrib>Yoon, Myung</creatorcontrib><creatorcontrib>Sang Moon Lee</creatorcontrib><creatorcontrib>Hae Jin Kim</creatorcontrib><creatorcontrib>Son, Seung Uk</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Nanoscale</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jeong, Hyeon Seok</au><au>Chang Wan Kang</au><au>Yoon, Myung</au><au>Sang Moon Lee</au><au>Hae Jin Kim</au><au>Son, Seung Uk</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Defect-rich CeO2 in a hollow carbon matrix engineered from a microporous organic platform: a hydroxide-assisted high performance pseudocapacitive material</atitle><jtitle>Nanoscale</jtitle><date>2021-11-11</date><risdate>2021</risdate><volume>13</volume><issue>43</issue><spage>18173</spage><epage>18181</epage><pages>18173-18181</pages><issn>2040-3364</issn><eissn>2040-3372</eissn><abstract>A microporous organic polymer (MOP) was utilized for the engineering of nanoparticulate CeO2 in a hollow carbon matrix (H-C/CeO2). After CeO2 nanoparticles were incorporated into a hollow MOP platform (H-MOP) through the decomposition of cerium acetate, successive carbonization produced H-C/CeO2. The redox feature of defective CeO2 in a conductive carbon matrix induced promising pseudocapacitive behavior. In particular, the H-C/CeO2 showed excellent electrochemical performance in an alkaline electrolyte (KOH), due to the hydroxide ion-assisted redox behavior of defective CeO2. H-C/CeO2-3 with an optimized amount of CeO2 showed specific capacitances of up to 527 (@0.5 A g−1) and 493 F g−1 (@1 A g−1). Even at high current densities of 10 and 20 A g−1, the H-C/CeO2-3 maintained high capacitances of 458 and 440 F g−1, respectively. After 10 000 cycling tests, the H-C/CeO2-3 retained the 94–95% capacitance of the first cycle.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d1nr05052d</doi><tpages>9</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Carbon Cerium oxides Electrochemical analysis Nanoparticles |
| title | Defect-rich CeO2 in a hollow carbon matrix engineered from a microporous organic platform: a hydroxide-assisted high performance pseudocapacitive material |
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