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Article: Dual-optimization strategy engineered Ti-based metal-organic framework with Fe active sites for highly-selective CO2 photoreduction to formic acid

TitleDual-optimization strategy engineered Ti-based metal-organic framework with Fe active sites for highly-selective CO2 photoreduction to formic acid
Authors
KeywordsAtomically dispersed Fe sites
Carbon dioxide reduction
High selectivity
Metal-organic frameworks
Visible-light driven photocatalysis
Issue Date15-Jun-2023
PublisherElsevier
Citation
Applied Catalysis B: Environmental, 2023, v. 327 How to Cite?
Abstract

Increasing CO2 conversion efficiency over metal-organic framework (MOF) based photocatalysts is of great significance to promote the carbon capture and utilization. In this work, a dual-benefit design strategy is deployed in the synthesis of a new two-dimensional Fe/Ti-BPDC MOF photocatalyst with atomically dispersed Fe sites. This catalyst demonstrated an excellent catalytic performance in the visible-light-driven CO2 conversion to HCOOH, achieving a high yield of 703.9 μmol g-1 h-1 at a selectivity greater than 99.7%. This is attributed to the ‘dual-optimization’ achieved by this catalyst to sustain the supply of photogenerated electrons and to effectively activate CO2. Specifically, the Fe/Ti-BPDC catalyst provides a high proportion of effective photogenerated electrons for the CO2 photocatalysis process via a unique electron transfer mechanism. Meanwhile, the strong O/Fe affinity between CO2 and atomically dispersed Fe active sites not only enables a fast CO2 activation, but also dictates the intermediate reaction pathways towards high HCOOH selectivity.


Persistent Identifierhttp://hdl.handle.net/10722/331360
ISSN
2023 Impact Factor: 20.2
2023 SCImago Journal Rankings: 5.112
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHe, XY-
dc.contributor.authorGao, XT-
dc.contributor.authorChen, X-
dc.contributor.authorHu, S-
dc.contributor.authorTan, FC-
dc.contributor.authorXiong, YJ-
dc.contributor.authorLong, R-
dc.contributor.authorLiu, M-
dc.contributor.authorTse, ECM-
dc.contributor.authorWei, F-
dc.contributor.authorYang, H-
dc.contributor.authorHou, JA-
dc.contributor.authorSong, CS-
dc.contributor.authorGuo, XW-
dc.date.accessioned2023-09-21T06:55:03Z-
dc.date.available2023-09-21T06:55:03Z-
dc.date.issued2023-06-15-
dc.identifier.citationApplied Catalysis B: Environmental, 2023, v. 327-
dc.identifier.issn0926-3373-
dc.identifier.urihttp://hdl.handle.net/10722/331360-
dc.description.abstract<p>Increasing CO<sub>2</sub> conversion efficiency over metal-organic framework (MOF) based photocatalysts is of great significance to promote the carbon capture and utilization. In this work, a dual-benefit design strategy is deployed in the synthesis of a new two-dimensional Fe/Ti-BPDC MOF photocatalyst with atomically dispersed Fe sites. This catalyst demonstrated an excellent catalytic performance in the visible-light-driven CO<sub>2</sub> conversion to HCOOH, achieving a high yield of 703.9 μmol g<sup>-1</sup> h<sup>-1</sup> at a selectivity greater than 99.7%. This is attributed to the ‘dual-optimization’ achieved by this catalyst to sustain the supply of photogenerated electrons and to effectively activate CO<sub>2</sub>. Specifically, the Fe/Ti-BPDC catalyst provides a high proportion of effective photogenerated electrons for the CO<sub>2</sub> <a href="https://www.sciencedirect.com/topics/chemical-engineering/photocatalysis" title="Learn more about photocatalysis from ScienceDirect's AI-generated Topic Pages">photocatalysis</a> process via a unique electron transfer mechanism. Meanwhile, the strong O/Fe affinity between CO<sub>2</sub> and atomically dispersed Fe active sites not only enables a fast CO<sub>2</sub> activation, but also dictates the intermediate reaction pathways towards high HCOOH selectivity.<br></p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofApplied Catalysis B: Environmental-
dc.subjectAtomically dispersed Fe sites-
dc.subjectCarbon dioxide reduction-
dc.subjectHigh selectivity-
dc.subjectMetal-organic frameworks-
dc.subjectVisible-light driven photocatalysis-
dc.titleDual-optimization strategy engineered Ti-based metal-organic framework with Fe active sites for highly-selective CO2 photoreduction to formic acid-
dc.typeArticle-
dc.identifier.doi10.1016/j.apcatb.2023.122418-
dc.identifier.scopuseid_2-s2.0-85147209186-
dc.identifier.volume327-
dc.identifier.eissn1873-3883-
dc.identifier.isiWOS:001040178300001-
dc.identifier.issnl0926-3373-

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