Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction
Abstract We report the study of two-dimensional graphitic carbon nitride (GCN) functionalized with copper single atoms as a catalyst for the reduction of CO2 (CO2RR). The correct GCN structure, as well as the adsorption sites and the coordination of the Cu atoms, was carefully determined by combinin...
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Nature Portfolio
2021
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oai:doaj.org-article:9bc7aabae4a9410dbe4f7dfac1279fb52021-12-02T14:34:08ZCopper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction10.1038/s41699-021-00243-y2397-7132https://doaj.org/article/9bc7aabae4a9410dbe4f7dfac1279fb52021-07-01T00:00:00Zhttps://doi.org/10.1038/s41699-021-00243-yhttps://doaj.org/toc/2397-7132Abstract We report the study of two-dimensional graphitic carbon nitride (GCN) functionalized with copper single atoms as a catalyst for the reduction of CO2 (CO2RR). The correct GCN structure, as well as the adsorption sites and the coordination of the Cu atoms, was carefully determined by combining experimental techniques, such as X-ray diffraction, transmission electron microscopy, X-ray absorption, and X-ray photoemission spectroscopy, with DFT theoretical calculations. The CO2RR products in KHCO3 and phosphate buffer solutions were determined by rotating ring disk electrode measurements and confirmed by 1H-NMR and gas chromatography. Formate was the only liquid product obtained in bicarbonate solution, whereas only hydrogen was obtained in phosphate solution. Finally, we demonstrated that GCN is a promising substrate able to stabilize metal atoms, since the characterization of the Cu-GCN system after the electrochemical work did not show the aggregation of the copper atoms.Claudio ComettoAldo UgolottiElisa GraziettiAlessandro MorettoGregorio BottaroLidia ArmelaoCristiana Di ValentinLaura CalvilloGaetano GranozziNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-10 (2021) |
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DOAJ |
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Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 |
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Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Claudio Cometto Aldo Ugolotti Elisa Grazietti Alessandro Moretto Gregorio Bottaro Lidia Armelao Cristiana Di Valentin Laura Calvillo Gaetano Granozzi Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction |
| description |
Abstract We report the study of two-dimensional graphitic carbon nitride (GCN) functionalized with copper single atoms as a catalyst for the reduction of CO2 (CO2RR). The correct GCN structure, as well as the adsorption sites and the coordination of the Cu atoms, was carefully determined by combining experimental techniques, such as X-ray diffraction, transmission electron microscopy, X-ray absorption, and X-ray photoemission spectroscopy, with DFT theoretical calculations. The CO2RR products in KHCO3 and phosphate buffer solutions were determined by rotating ring disk electrode measurements and confirmed by 1H-NMR and gas chromatography. Formate was the only liquid product obtained in bicarbonate solution, whereas only hydrogen was obtained in phosphate solution. Finally, we demonstrated that GCN is a promising substrate able to stabilize metal atoms, since the characterization of the Cu-GCN system after the electrochemical work did not show the aggregation of the copper atoms. |
| format |
article |
| author |
Claudio Cometto Aldo Ugolotti Elisa Grazietti Alessandro Moretto Gregorio Bottaro Lidia Armelao Cristiana Di Valentin Laura Calvillo Gaetano Granozzi |
| author_facet |
Claudio Cometto Aldo Ugolotti Elisa Grazietti Alessandro Moretto Gregorio Bottaro Lidia Armelao Cristiana Di Valentin Laura Calvillo Gaetano Granozzi |
| author_sort |
Claudio Cometto |
| title |
Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction |
| title_short |
Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction |
| title_full |
Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction |
| title_fullStr |
Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction |
| title_full_unstemmed |
Copper single-atoms embedded in 2D graphitic carbon nitride for the CO2 reduction |
| title_sort |
copper single-atoms embedded in 2d graphitic carbon nitride for the co2 reduction |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/9bc7aabae4a9410dbe4f7dfac1279fb5 |
| work_keys_str_mv |
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