Catalysts confined inside CNTs derived from 2D metal-organic frameworks for electrolysis
Two-dimensional metal-organic framework (MOF) nanosheets have attracted considerable research interest as electrocatalysts, and thermal annealing is important to boost their conductivity. The effect of annealing atmosphere on the electrochemical performance of 2D MOFs and their catalytic center stru...
Gespeichert in:
| Veröffentlicht in: | Nanoscale 2020-04, Vol.12 (16), p.8969-8974 |
|---|---|
| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 8974 |
|---|---|
| container_issue | 16 |
| container_start_page | 8969 |
| container_title | Nanoscale |
| container_volume | 12 |
| creator | Xia, Qinghua Liu, Haimin Jin, Mengmeng Lai, Linfei Qiu, Yongting Zhai, Haili Li, Hongbo Liu, Xiang |
| description | Two-dimensional metal-organic framework (MOF) nanosheets have attracted considerable research interest as electrocatalysts, and thermal annealing is important to boost their conductivity. The effect of annealing atmosphere on the electrochemical performance of 2D MOFs and their catalytic center structure have been investigated. The Co-MOF/H
2
synthesized by annealing of 2D MOF under a H
2
atmosphere has shown a significantly enhanced catalytic activity compared with those annealed under an Ar atmosphere (Co-MOF/Ar). The Co-MOF/H
2
has 2-3 graphitic layers of graphitic carbon coating and presents a large amount of high valent Co
2+
. H
2
annealing leads to a fast reduction of Co-MOF to Co/CoO
x
nanoparticles and catalyzes the growth of CNTs with MOF feed as carbon source. The Co-MOF/H
2
shows a high electrocatalytic activity which requires an overpotential of 312 mV to reach a current density of 10 mA cm
−2
. A Co-MOF/H
2
-based water electrolyzer requires a potential of 1.619 V to reach a current density of 10 mA cm
−2
for overall water splitting in 1.0 M KOH. After 25 h of continuous operation for water electrolysis, the Co-MOF/H
2
-based cell has shown a negligible increase in the overpotential, indicating its superior durability compared to the 2D Co-MOF.
CNT confined catalysts have been prepared by annealing of two-dimensional metal-organic framework (MOF) nanosheets under a H
2
/Ar atmosphere. |
| doi_str_mv | 10.1039/d0nr00992j |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2396313558</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2396313558</sourcerecordid><originalsourceid>FETCH-LOGICAL-c400t-fb1b4f89d6c04a637526c1a2cdf79a435cb58c9e560a53f8ef465bedecde6c8a3</originalsourceid><addsrcrecordid>eNp90c9LwzAUB_AgitPpxbtS8SJC9TVp0_Yomz8ZE2SCt5ImL9LZNjPplP33RjcnePCU8L4fHuEbQg4iOI-A5RcKWguQ53S6QXYoxBAyltLN9Z3HPbLr3BSA54yzbdJjlKYQpXSHPA9EJ-qF61wgTaurFlVQta5SGAzGExcotNW7n2lrmoAOgwY9D419EW0l_VQ0-GHsqwu0sQHWKDtr_LrK7ZEtLWqH-6uzT56uryaD23D0cHM3uByFMgboQl1GZayzXHEJseAsTSiXkaBS6TQXMUtkmWQyx4SDSJjOUMc8KVGhVMhlJlifnC73zqx5m6PriqZyEutatGjmrqAsywBomnNPT_7QqZnb1r_OK59HLEkyr86WSlrjnEVdzGzVCLsoIii--i6GMH787vve46PVynnZoFrTn4I9OFwC6-Q6_f0wnx__lxczpdknu9eQwA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2396313558</pqid></control><display><type>article</type><title>Catalysts confined inside CNTs derived from 2D metal-organic frameworks for electrolysis</title><source>Royal Society Of Chemistry Journals 2008-</source><creator>Xia, Qinghua ; Liu, Haimin ; Jin, Mengmeng ; Lai, Linfei ; Qiu, Yongting ; Zhai, Haili ; Li, Hongbo ; Liu, Xiang</creator><creatorcontrib>Xia, Qinghua ; Liu, Haimin ; Jin, Mengmeng ; Lai, Linfei ; Qiu, Yongting ; Zhai, Haili ; Li, Hongbo ; Liu, Xiang</creatorcontrib><description>Two-dimensional metal-organic framework (MOF) nanosheets have attracted considerable research interest as electrocatalysts, and thermal annealing is important to boost their conductivity. The effect of annealing atmosphere on the electrochemical performance of 2D MOFs and their catalytic center structure have been investigated. The Co-MOF/H
2
synthesized by annealing of 2D MOF under a H
2
atmosphere has shown a significantly enhanced catalytic activity compared with those annealed under an Ar atmosphere (Co-MOF/Ar). The Co-MOF/H
2
has 2-3 graphitic layers of graphitic carbon coating and presents a large amount of high valent Co
2+
. H
2
annealing leads to a fast reduction of Co-MOF to Co/CoO
x
nanoparticles and catalyzes the growth of CNTs with MOF feed as carbon source. The Co-MOF/H
2
shows a high electrocatalytic activity which requires an overpotential of 312 mV to reach a current density of 10 mA cm
−2
. A Co-MOF/H
2
-based water electrolyzer requires a potential of 1.619 V to reach a current density of 10 mA cm
−2
for overall water splitting in 1.0 M KOH. After 25 h of continuous operation for water electrolysis, the Co-MOF/H
2
-based cell has shown a negligible increase in the overpotential, indicating its superior durability compared to the 2D Co-MOF.
CNT confined catalysts have been prepared by annealing of two-dimensional metal-organic framework (MOF) nanosheets under a H
2
/Ar atmosphere.</description><identifier>ISSN: 2040-3364</identifier><identifier>EISSN: 2040-3372</identifier><identifier>DOI: 10.1039/d0nr00992j</identifier><identifier>PMID: 32270172</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Annealing ; Carbon ; Catalytic activity ; Cobalt oxides ; Current density ; Electrocatalysts ; Electrochemical analysis ; Electrolysis ; Metal-organic frameworks ; Nanoparticles ; Water splitting</subject><ispartof>Nanoscale, 2020-04, Vol.12 (16), p.8969-8974</ispartof><rights>Copyright Royal Society of Chemistry 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c400t-fb1b4f89d6c04a637526c1a2cdf79a435cb58c9e560a53f8ef465bedecde6c8a3</citedby><cites>FETCH-LOGICAL-c400t-fb1b4f89d6c04a637526c1a2cdf79a435cb58c9e560a53f8ef465bedecde6c8a3</cites><orcidid>0000-0002-3421-6710</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32270172$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Xia, Qinghua</creatorcontrib><creatorcontrib>Liu, Haimin</creatorcontrib><creatorcontrib>Jin, Mengmeng</creatorcontrib><creatorcontrib>Lai, Linfei</creatorcontrib><creatorcontrib>Qiu, Yongting</creatorcontrib><creatorcontrib>Zhai, Haili</creatorcontrib><creatorcontrib>Li, Hongbo</creatorcontrib><creatorcontrib>Liu, Xiang</creatorcontrib><title>Catalysts confined inside CNTs derived from 2D metal-organic frameworks for electrolysis</title><title>Nanoscale</title><addtitle>Nanoscale</addtitle><description>Two-dimensional metal-organic framework (MOF) nanosheets have attracted considerable research interest as electrocatalysts, and thermal annealing is important to boost their conductivity. The effect of annealing atmosphere on the electrochemical performance of 2D MOFs and their catalytic center structure have been investigated. The Co-MOF/H
2
synthesized by annealing of 2D MOF under a H
2
atmosphere has shown a significantly enhanced catalytic activity compared with those annealed under an Ar atmosphere (Co-MOF/Ar). The Co-MOF/H
2
has 2-3 graphitic layers of graphitic carbon coating and presents a large amount of high valent Co
2+
. H
2
annealing leads to a fast reduction of Co-MOF to Co/CoO
x
nanoparticles and catalyzes the growth of CNTs with MOF feed as carbon source. The Co-MOF/H
2
shows a high electrocatalytic activity which requires an overpotential of 312 mV to reach a current density of 10 mA cm
−2
. A Co-MOF/H
2
-based water electrolyzer requires a potential of 1.619 V to reach a current density of 10 mA cm
−2
for overall water splitting in 1.0 M KOH. After 25 h of continuous operation for water electrolysis, the Co-MOF/H
2
-based cell has shown a negligible increase in the overpotential, indicating its superior durability compared to the 2D Co-MOF.
CNT confined catalysts have been prepared by annealing of two-dimensional metal-organic framework (MOF) nanosheets under a H
2
/Ar atmosphere.</description><subject>Annealing</subject><subject>Carbon</subject><subject>Catalytic activity</subject><subject>Cobalt oxides</subject><subject>Current density</subject><subject>Electrocatalysts</subject><subject>Electrochemical analysis</subject><subject>Electrolysis</subject><subject>Metal-organic frameworks</subject><subject>Nanoparticles</subject><subject>Water splitting</subject><issn>2040-3364</issn><issn>2040-3372</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp90c9LwzAUB_AgitPpxbtS8SJC9TVp0_Yomz8ZE2SCt5ImL9LZNjPplP33RjcnePCU8L4fHuEbQg4iOI-A5RcKWguQ53S6QXYoxBAyltLN9Z3HPbLr3BSA54yzbdJjlKYQpXSHPA9EJ-qF61wgTaurFlVQta5SGAzGExcotNW7n2lrmoAOgwY9D419EW0l_VQ0-GHsqwu0sQHWKDtr_LrK7ZEtLWqH-6uzT56uryaD23D0cHM3uByFMgboQl1GZayzXHEJseAsTSiXkaBS6TQXMUtkmWQyx4SDSJjOUMc8KVGhVMhlJlifnC73zqx5m6PriqZyEutatGjmrqAsywBomnNPT_7QqZnb1r_OK59HLEkyr86WSlrjnEVdzGzVCLsoIii--i6GMH787vve46PVynnZoFrTn4I9OFwC6-Q6_f0wnx__lxczpdknu9eQwA</recordid><startdate>20200430</startdate><enddate>20200430</enddate><creator>Xia, Qinghua</creator><creator>Liu, Haimin</creator><creator>Jin, Mengmeng</creator><creator>Lai, Linfei</creator><creator>Qiu, Yongting</creator><creator>Zhai, Haili</creator><creator>Li, Hongbo</creator><creator>Liu, Xiang</creator><general>Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><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><orcidid>https://orcid.org/0000-0002-3421-6710</orcidid></search><sort><creationdate>20200430</creationdate><title>Catalysts confined inside CNTs derived from 2D metal-organic frameworks for electrolysis</title><author>Xia, Qinghua ; Liu, Haimin ; Jin, Mengmeng ; Lai, Linfei ; Qiu, Yongting ; Zhai, Haili ; Li, Hongbo ; Liu, Xiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-fb1b4f89d6c04a637526c1a2cdf79a435cb58c9e560a53f8ef465bedecde6c8a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Annealing</topic><topic>Carbon</topic><topic>Catalytic activity</topic><topic>Cobalt oxides</topic><topic>Current density</topic><topic>Electrocatalysts</topic><topic>Electrochemical analysis</topic><topic>Electrolysis</topic><topic>Metal-organic frameworks</topic><topic>Nanoparticles</topic><topic>Water splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xia, Qinghua</creatorcontrib><creatorcontrib>Liu, Haimin</creatorcontrib><creatorcontrib>Jin, Mengmeng</creatorcontrib><creatorcontrib>Lai, Linfei</creatorcontrib><creatorcontrib>Qiu, Yongting</creatorcontrib><creatorcontrib>Zhai, Haili</creatorcontrib><creatorcontrib>Li, Hongbo</creatorcontrib><creatorcontrib>Liu, Xiang</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><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>Xia, Qinghua</au><au>Liu, Haimin</au><au>Jin, Mengmeng</au><au>Lai, Linfei</au><au>Qiu, Yongting</au><au>Zhai, Haili</au><au>Li, Hongbo</au><au>Liu, Xiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Catalysts confined inside CNTs derived from 2D metal-organic frameworks for electrolysis</atitle><jtitle>Nanoscale</jtitle><addtitle>Nanoscale</addtitle><date>2020-04-30</date><risdate>2020</risdate><volume>12</volume><issue>16</issue><spage>8969</spage><epage>8974</epage><pages>8969-8974</pages><issn>2040-3364</issn><eissn>2040-3372</eissn><abstract>Two-dimensional metal-organic framework (MOF) nanosheets have attracted considerable research interest as electrocatalysts, and thermal annealing is important to boost their conductivity. The effect of annealing atmosphere on the electrochemical performance of 2D MOFs and their catalytic center structure have been investigated. The Co-MOF/H
2
synthesized by annealing of 2D MOF under a H
2
atmosphere has shown a significantly enhanced catalytic activity compared with those annealed under an Ar atmosphere (Co-MOF/Ar). The Co-MOF/H
2
has 2-3 graphitic layers of graphitic carbon coating and presents a large amount of high valent Co
2+
. H
2
annealing leads to a fast reduction of Co-MOF to Co/CoO
x
nanoparticles and catalyzes the growth of CNTs with MOF feed as carbon source. The Co-MOF/H
2
shows a high electrocatalytic activity which requires an overpotential of 312 mV to reach a current density of 10 mA cm
−2
. A Co-MOF/H
2
-based water electrolyzer requires a potential of 1.619 V to reach a current density of 10 mA cm
−2
for overall water splitting in 1.0 M KOH. After 25 h of continuous operation for water electrolysis, the Co-MOF/H
2
-based cell has shown a negligible increase in the overpotential, indicating its superior durability compared to the 2D Co-MOF.
CNT confined catalysts have been prepared by annealing of two-dimensional metal-organic framework (MOF) nanosheets under a H
2
/Ar atmosphere.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>32270172</pmid><doi>10.1039/d0nr00992j</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-3421-6710</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2040-3364 |
| ispartof | Nanoscale, 2020-04, Vol.12 (16), p.8969-8974 |
| issn | 2040-3364 2040-3372 |
| language | eng |
| recordid | cdi_proquest_journals_2396313558 |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Annealing Carbon Catalytic activity Cobalt oxides Current density Electrocatalysts Electrochemical analysis Electrolysis Metal-organic frameworks Nanoparticles Water splitting |
| title | Catalysts confined inside CNTs derived from 2D metal-organic frameworks for electrolysis |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-19T10%3A57%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Catalysts%20confined%20inside%20CNTs%20derived%20from%202D%20metal-organic%20frameworks%20for%20electrolysis&rft.jtitle=Nanoscale&rft.au=Xia,%20Qinghua&rft.date=2020-04-30&rft.volume=12&rft.issue=16&rft.spage=8969&rft.epage=8974&rft.pages=8969-8974&rft.issn=2040-3364&rft.eissn=2040-3372&rft_id=info:doi/10.1039/d0nr00992j&rft_dat=%3Cproquest_cross%3E2396313558%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2396313558&rft_id=info:pmid/32270172&rfr_iscdi=true |