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Hierarchical CoFe L...
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Huang, ShoushuangShanghai Univ, Peoples R China
(författare)
Hierarchical CoFe LDH/MOF nanorods array with strong coupling effect grown on carbon cloth enables efficient oxidation of water and urea
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
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2021-07-02
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IOP PUBLISHING LTD,2021
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-178284
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-178284URI
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https://doi.org/10.1088/1361-6528/ac0b65DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Funding Agencies|National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21601120]; Science and Technology Commission of Shanghai MunicipalityScience & Technology Commission of Shanghai Municipality (STCSM) [17ZR1410500, 19ZR1418100]; Science and Technology Program of Shanghai [21010500300]
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Oxygen evolution reaction (OER) and urea oxidation reaction (UOR) play important roles in the fields of hydrogen energy production and pollution treatment. Herein, a facile one-step chemical etching strategy is provided for fabricating one-dimensional hierarchical nanorods array composed of CoFe layered double hydroxide (LDH)/metal-organic frameworks (MOFs) supported on carbon cloth as efficient and stable OER and UOR catalysts. By precisely controlling the etching rate, the ligands from Co-MOFs are partially removed, the corresponding metal centers then coordinate with hydroxyl ions to generate ultrathin amorphous CoFe LDH nanosheets. The resultant CoFe LDH/MOFs catalyst possesses large active surface area, enhanced conductivity and extended electron/mass transfer channels, which are beneficial for catalytic reactions. Additionally, the intimate contact between CoFe LDH and MOFs modulates the local electronic structure of the catalytic active site, leading to enhanced adsorption of oxygen-containing intermediates to facilitate fast electrocatalytic reaction. As a result, the optimized CoFe LDH/MOF-0.06 exhibits superior OER activity with a low overpotential of 276 at a current density of 10 mA cm(-2) with long-term durability. Additionally, it merely requires a voltage of 1.45 V to obtain 10 mA cm(-2) in 1 M KOH solution with 0.33 urea and is 56 mV lower than the one in pure KOH. The work presented here may hew out a brand-new route to construct multi-functional electrocatalysts for water splitting, CO2 reduction, nitrogen reduction reactions and so on.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Wu, YeShanghai Univ, Peoples R China
(författare)
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Fu, JieShanghai Univ, Peoples R China
(författare)
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Xin, PeijunShanghai Univ, Peoples R China
(författare)
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Zhang, QianShanghai Univ, Peoples R China
(författare)
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Jin, ZhiqiangShanghai Univ, Peoples R China
(författare)
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Zhang, JieShanghai Univ, Peoples R China
(författare)
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Hu, Zhang-JunLinköpings universitet,Molekylär ytfysik och nanovetenskap,Tekniska fakulteten,Shanghai Univ, Peoples R China(Swepub:liu)zhahu14
(författare)
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Chen, ZhiwenShanghai Univ, Peoples R China
(författare)
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Shanghai Univ, Peoples R ChinaMolekylär ytfysik och nanovetenskap
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Nanotechnology: IOP PUBLISHING LTD32:380957-44841361-6528
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