Essential features of weak current for excellent enhancement of NO x reduction over monoatomic V-based catalyst
Human society is facing increasingly serious problems of environmental pollution and energy shortage, and up to now, achieving high NH -SCR activity at ultra-low temperatures (
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| Veröffentlicht in: | Nature communications 2024-08, Vol.15 (1), p.6688 |
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| creator | Zheng, Daying Liu, Kaijie Zhang, Zeshu Fu, Qi Bian, Mengyao Han, Xinyu Shen, Xin Chen, Xiaohui Xie, Haijiao Wang, Xiao Yang, Xiangguang Zhang, Yibo Song, Shuyan |
| description | Human society is facing increasingly serious problems of environmental pollution and energy shortage, and up to now, achieving high NH
-SCR activity at ultra-low temperatures ( |
| format | Article |
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-SCR activity at ultra-low temperatures (<150 °C) remains challenging for the V-based catalysts with V content below 2%. In this study, the monoatomic V-based catalyst under the weak current-assisted strategy can completely convert NO
into N
at ultra-low temperature with V content of 1.36%, which shows the preeminent turnover frequencies (TOF
= 1.97×10
s
). The improvement of catalytic performance is mainly attributed to the enhancement catalysis of weak current (ECWC) rather than electric field, which significantly reduce the energy consumption of the catalytic system by more than 90%. The further mechanism research for the ECWC based on a series of weak current-assisted characterization means and DFT calculations confirms that migrated electrons mainly concentrate around the V single atoms and increase the proportion of antibonding orbitals, which make the V-O chemical bond weaker (electron scissors effect) and thus accelerate oxygen circulation. The novel current-assisted catalysis in the present work can potentially apply to other environmental and energy fields.</description><identifier>EISSN: 2041-1723</identifier><identifier>PMID: 39107273</identifier><language>eng</language><publisher>England</publisher><ispartof>Nature communications, 2024-08, Vol.15 (1), p.6688</ispartof><rights>2024. The Author(s).</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-6316-7914 ; 0000-0001-9099-8713 ; 0000-0001-9983-5451 ; 0000-0002-7758-752X ; 0000-0002-5000-518X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39107273$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zheng, Daying</creatorcontrib><creatorcontrib>Liu, Kaijie</creatorcontrib><creatorcontrib>Zhang, Zeshu</creatorcontrib><creatorcontrib>Fu, Qi</creatorcontrib><creatorcontrib>Bian, Mengyao</creatorcontrib><creatorcontrib>Han, Xinyu</creatorcontrib><creatorcontrib>Shen, Xin</creatorcontrib><creatorcontrib>Chen, Xiaohui</creatorcontrib><creatorcontrib>Xie, Haijiao</creatorcontrib><creatorcontrib>Wang, Xiao</creatorcontrib><creatorcontrib>Yang, Xiangguang</creatorcontrib><creatorcontrib>Zhang, Yibo</creatorcontrib><creatorcontrib>Song, Shuyan</creatorcontrib><title>Essential features of weak current for excellent enhancement of NO x reduction over monoatomic V-based catalyst</title><title>Nature communications</title><addtitle>Nat Commun</addtitle><description>Human society is facing increasingly serious problems of environmental pollution and energy shortage, and up to now, achieving high NH
-SCR activity at ultra-low temperatures (<150 °C) remains challenging for the V-based catalysts with V content below 2%. In this study, the monoatomic V-based catalyst under the weak current-assisted strategy can completely convert NO
into N
at ultra-low temperature with V content of 1.36%, which shows the preeminent turnover frequencies (TOF
= 1.97×10
s
). The improvement of catalytic performance is mainly attributed to the enhancement catalysis of weak current (ECWC) rather than electric field, which significantly reduce the energy consumption of the catalytic system by more than 90%. The further mechanism research for the ECWC based on a series of weak current-assisted characterization means and DFT calculations confirms that migrated electrons mainly concentrate around the V single atoms and increase the proportion of antibonding orbitals, which make the V-O chemical bond weaker (electron scissors effect) and thus accelerate oxygen circulation. The novel current-assisted catalysis in the present work can potentially apply to other environmental and energy fields.</description><issn>2041-1723</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFjs0KgkAUhYcgUspXiPsCgn9grcNoVZtoK9fxStb8yMxY-vYp1LqzOedwvsVZMD-JsjiM8yT1WGDtI5qU7uNdlq2YN4UoT_LUZ7qwlpRrUUBD6HpDFnQDb8In8N6YaYNGG6CBkxBzI3VHxUnOeSLPFxjAUN1z12oF-kUGpFYanZYth1tYoaUaODoUo3UbtmxQWAq-vmbbY3E9nMKuryTVZWdaiWYsfw_Tv8AHSn5Iuw</recordid><startdate>20240806</startdate><enddate>20240806</enddate><creator>Zheng, Daying</creator><creator>Liu, Kaijie</creator><creator>Zhang, Zeshu</creator><creator>Fu, Qi</creator><creator>Bian, Mengyao</creator><creator>Han, Xinyu</creator><creator>Shen, Xin</creator><creator>Chen, Xiaohui</creator><creator>Xie, Haijiao</creator><creator>Wang, Xiao</creator><creator>Yang, Xiangguang</creator><creator>Zhang, Yibo</creator><creator>Song, Shuyan</creator><scope>NPM</scope><orcidid>https://orcid.org/0000-0001-6316-7914</orcidid><orcidid>https://orcid.org/0000-0001-9099-8713</orcidid><orcidid>https://orcid.org/0000-0001-9983-5451</orcidid><orcidid>https://orcid.org/0000-0002-7758-752X</orcidid><orcidid>https://orcid.org/0000-0002-5000-518X</orcidid></search><sort><creationdate>20240806</creationdate><title>Essential features of weak current for excellent enhancement of NO x reduction over monoatomic V-based catalyst</title><author>Zheng, Daying ; Liu, Kaijie ; Zhang, Zeshu ; Fu, Qi ; Bian, Mengyao ; Han, Xinyu ; Shen, Xin ; Chen, Xiaohui ; Xie, Haijiao ; Wang, Xiao ; Yang, Xiangguang ; Zhang, Yibo ; Song, Shuyan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-pubmed_primary_391072733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zheng, Daying</creatorcontrib><creatorcontrib>Liu, Kaijie</creatorcontrib><creatorcontrib>Zhang, Zeshu</creatorcontrib><creatorcontrib>Fu, Qi</creatorcontrib><creatorcontrib>Bian, Mengyao</creatorcontrib><creatorcontrib>Han, Xinyu</creatorcontrib><creatorcontrib>Shen, Xin</creatorcontrib><creatorcontrib>Chen, Xiaohui</creatorcontrib><creatorcontrib>Xie, Haijiao</creatorcontrib><creatorcontrib>Wang, Xiao</creatorcontrib><creatorcontrib>Yang, Xiangguang</creatorcontrib><creatorcontrib>Zhang, Yibo</creatorcontrib><creatorcontrib>Song, Shuyan</creatorcontrib><collection>PubMed</collection><jtitle>Nature communications</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zheng, Daying</au><au>Liu, Kaijie</au><au>Zhang, Zeshu</au><au>Fu, Qi</au><au>Bian, Mengyao</au><au>Han, Xinyu</au><au>Shen, Xin</au><au>Chen, Xiaohui</au><au>Xie, Haijiao</au><au>Wang, Xiao</au><au>Yang, Xiangguang</au><au>Zhang, Yibo</au><au>Song, Shuyan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Essential features of weak current for excellent enhancement of NO x reduction over monoatomic V-based catalyst</atitle><jtitle>Nature communications</jtitle><addtitle>Nat Commun</addtitle><date>2024-08-06</date><risdate>2024</risdate><volume>15</volume><issue>1</issue><spage>6688</spage><pages>6688-</pages><eissn>2041-1723</eissn><abstract>Human society is facing increasingly serious problems of environmental pollution and energy shortage, and up to now, achieving high NH
-SCR activity at ultra-low temperatures (<150 °C) remains challenging for the V-based catalysts with V content below 2%. In this study, the monoatomic V-based catalyst under the weak current-assisted strategy can completely convert NO
into N
at ultra-low temperature with V content of 1.36%, which shows the preeminent turnover frequencies (TOF
= 1.97×10
s
). The improvement of catalytic performance is mainly attributed to the enhancement catalysis of weak current (ECWC) rather than electric field, which significantly reduce the energy consumption of the catalytic system by more than 90%. The further mechanism research for the ECWC based on a series of weak current-assisted characterization means and DFT calculations confirms that migrated electrons mainly concentrate around the V single atoms and increase the proportion of antibonding orbitals, which make the V-O chemical bond weaker (electron scissors effect) and thus accelerate oxygen circulation. The novel current-assisted catalysis in the present work can potentially apply to other environmental and energy fields.</abstract><cop>England</cop><pmid>39107273</pmid><orcidid>https://orcid.org/0000-0001-6316-7914</orcidid><orcidid>https://orcid.org/0000-0001-9099-8713</orcidid><orcidid>https://orcid.org/0000-0001-9983-5451</orcidid><orcidid>https://orcid.org/0000-0002-7758-752X</orcidid><orcidid>https://orcid.org/0000-0002-5000-518X</orcidid></addata></record> |
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| title | Essential features of weak current for excellent enhancement of NO x reduction over monoatomic V-based catalyst |
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