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- Publisher Website: 10.1038/s41467-020-16227-3
- Scopus: eid_2-s2.0-85085154783
- PMID: 32439875
- WOS: WOS:000537066900003
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Article: Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water
Title | Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water |
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Authors | |
Keywords | amplitude modulation atomic absorption spectrometry bioinformatics black hole calculation |
Issue Date | 2020 |
Publisher | Nature Research (part of Springer Nature): Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html |
Citation | Nature Communications, 2020, v. 11, p. article no. 2531 How to Cite? |
Abstract | Solar-driven CO2 reduction by abundant water to alcohols can supply sustainable liquid fuels and alleviate global warming. However, the sluggish water oxidation reaction has been hardly reported to be efficient and selective in CO2 conversion due to fast charge recombination. Here, using transient absorption spectroscopy, we demonstrate that microwave-synthesised carbon-dots (mCD) possess unique hole-accepting nature, prolonging the electron lifetime (t50%) of carbon nitride (CN) by six folds, favouring a six-electron product. mCD-decorated CN stably produces stoichiometric oxygen and methanol from water and CO2 with nearly 100% selectivity to methanol and internal quantum efficiency of 2.1% in the visible region, further confirmed by isotopic labelling. Such mCD rapidly extracts holes from CN and prevents the surface adsorption of methanol, favourably oxidising water over methanol and enhancing the selective CO2 reduction to alcohols. This work provides a unique strategy for efficient and highly selective CO2 reduction by water to high-value chemicals. |
Persistent Identifier | http://hdl.handle.net/10722/289653 |
ISSN | 2023 Impact Factor: 14.7 2023 SCImago Journal Rankings: 4.887 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang, Y | - |
dc.contributor.author | Liu, X | - |
dc.contributor.author | Han, X | - |
dc.contributor.author | Godin, R | - |
dc.contributor.author | Chen, J | - |
dc.contributor.author | Zhou, W | - |
dc.contributor.author | Jiang, C | - |
dc.contributor.author | Thompson, JF | - |
dc.contributor.author | Mustafa, KB | - |
dc.contributor.author | Shevlin, SA | - |
dc.contributor.author | Durrant, JR | - |
dc.contributor.author | Guo, Z | - |
dc.contributor.author | Tang, J | - |
dc.date.accessioned | 2020-10-22T08:15:35Z | - |
dc.date.available | 2020-10-22T08:15:35Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Nature Communications, 2020, v. 11, p. article no. 2531 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289653 | - |
dc.description.abstract | Solar-driven CO2 reduction by abundant water to alcohols can supply sustainable liquid fuels and alleviate global warming. However, the sluggish water oxidation reaction has been hardly reported to be efficient and selective in CO2 conversion due to fast charge recombination. Here, using transient absorption spectroscopy, we demonstrate that microwave-synthesised carbon-dots (mCD) possess unique hole-accepting nature, prolonging the electron lifetime (t50%) of carbon nitride (CN) by six folds, favouring a six-electron product. mCD-decorated CN stably produces stoichiometric oxygen and methanol from water and CO2 with nearly 100% selectivity to methanol and internal quantum efficiency of 2.1% in the visible region, further confirmed by isotopic labelling. Such mCD rapidly extracts holes from CN and prevents the surface adsorption of methanol, favourably oxidising water over methanol and enhancing the selective CO2 reduction to alcohols. This work provides a unique strategy for efficient and highly selective CO2 reduction by water to high-value chemicals. | - |
dc.language | eng | - |
dc.publisher | Nature Research (part of Springer Nature): Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html | - |
dc.relation.ispartof | Nature Communications | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | amplitude modulation | - |
dc.subject | atomic absorption spectrometry | - |
dc.subject | bioinformatics | - |
dc.subject | black hole | - |
dc.subject | calculation | - |
dc.title | Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water | - |
dc.type | Article | - |
dc.identifier.email | Guo, Z: zxguo@hku.hk | - |
dc.identifier.authority | Guo, Z=rp02451 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1038/s41467-020-16227-3 | - |
dc.identifier.pmid | 32439875 | - |
dc.identifier.pmcid | PMC7242399 | - |
dc.identifier.scopus | eid_2-s2.0-85085154783 | - |
dc.identifier.hkuros | 317026 | - |
dc.identifier.volume | 11 | - |
dc.identifier.spage | article no. 2531 | - |
dc.identifier.epage | article no. 2531 | - |
dc.identifier.isi | WOS:000537066900003 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.issnl | 2041-1723 | - |