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Nature Communications, volume 11, issue 1, publication number 2531

Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water

Yiou Wang 1, 2
Xu Liu 2
Xiaoyu Han 3, 4
Robert Godin 5, 6
Jialu Chen 7
Wuzong Zhou 7
Chaoran Jiang 2
Jamie F Thompson 6
Mustafa K Bayazit 2, 8
Stephen A Shevlin 3
Zhengxiao Guo 3, 9, 10, 11
Publication typeJournal Article
Publication date2020-05-21
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723, 20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
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. Solar-driven CO2 reduction by abundant water to alcohols is hindered by the sluggish water oxidation reaction. Here, the authors demonstrate that the microwave-synthesized carbon-dots possess unique hole-accepting nature, allowing stoichiometric oxygen and methanol production from water and CO2 with nearly 100% selectivity to methanol.

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GOST Copy
Wang Y. et al. Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water // Nature Communications. 2020. Vol. 11. No. 1. 2531
GOST all authors (up to 50) Copy
Wang Y., Liu X., Han X., Godin R., Chen J., Zhou W., Jiang C., Thompson J. F., Bayazit M. K., Shevlin S. A., Haussener S., Guo Z., Tang J. Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water // Nature Communications. 2020. Vol. 11. No. 1. 2531
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/s41467-020-16227-3
UR - https://doi.org/10.1038/s41467-020-16227-3
TI - Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water
T2 - Nature Communications
AU - Wang, Yiou
AU - Liu, Xu
AU - Han, Xiaoyu
AU - Godin, Robert
AU - Chen, Jialu
AU - Zhou, Wuzong
AU - Jiang, Chaoran
AU - Thompson, Jamie F
AU - Bayazit, Mustafa K
AU - Shevlin, Stephen A
AU - Haussener, Sophia
AU - Guo, Zhengxiao
AU - Tang, Junwang
PY - 2020
DA - 2020/05/21 00:00:00
PB - Springer Nature
IS - 1
VL - 11
SN - 2041-1723
SN - 2041-1723
ER -
BibTex
Cite this
BibTex Copy
@article{2020_Wang,
author = {Yiou Wang and Xu Liu and Xiaoyu Han and Robert Godin and Jialu Chen and Wuzong Zhou and Chaoran Jiang and Jamie F Thompson and Mustafa K Bayazit and Stephen A Shevlin and Sophia Haussener and Zhengxiao Guo and Junwang Tang},
title = {Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water},
journal = {Nature Communications},
year = {2020},
volume = {11},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1038/s41467-020-16227-3},
number = {1},
doi = {10.1038/s41467-020-16227-3}
}
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