Graphitic carbon nitride with the pyridinic N substituted by Al and Si as efficient photocatalysts for CO2 reduction

Literature Information

Publication Date 2023-11-27
DOI 10.1039/D3TA05398A
Impact Factor 12.732
Authors

Min Zhang, Yaru Liu, Ya-nan Jiang, Yuchen Ma


View Original

Abstract

Efficient photocatalysts to reduce CO2 into fuels are still scarce. Graphitic carbon nitride (g-C3N4) is a promising metal-free photocatalyst, and replacing its lattice atoms by other elements is one common strategy to improve its activity in the CO2 reduction reaction (CO2RR). Using ten kinds of elements in groups IIIA to VIA as dopants to replace the pyridinic N in g-C3N4, our theoretical calculations uncover a strong correlation between electronegativity and Bader charges of the dopants and the reaction barrier in the initial step of the CO2RR, which reaches 1.72 eV on the pristine g-C3N4. We find that the barrier is inversely proportional to electronegativity for the elements possessing weak metallicity (B, O, P, S, As, and Se) whose reduction product is COOH*, and to Bader charge for those possessing strong metallicity (Al, Si, Ga, and Ge) whose reduction product is HCOO*. Si-doped g-C3N4 exhibits excellent activity and selectivity in producing HCOOH with a rate-determining barrier of just 0.57 eV, while Al-doped g-C3N4 is a promising catalyst to produce CH4 with all the barriers smaller than 0.81 eV except a 1.21 eV barrier in its rate-determining step. Activities of these two systems are comparable to that of g-C3N4 modified by noble metal atoms. Si and Al doping also significantly enhances visible light absorption. In contrast, g-C3N4 doped by the elements possessing weak metallicity is inefficient for the CO2RR due to the barrier being higher than 1.36 eV. This work may provide a strategy for the design of efficient CO2RR catalysts based on metal-free materials.

Related Literature

Editorial. Changes

Editorial

DOI: 10.1039/AN995200002N

Front cover

Other

DOI: 10.1039/AN99621FX005

Courses

Other

DOI: 10.1039/AN995200050N

Technical abbreviations and acronyms

Other

DOI: 10.1039/AN995200054N

Contents pages

Other

DOI: 10.1039/AN99621BX011

Papers in future issues

Other

DOI: 10.1039/AN995200071N

Journals Bulletin

Other

DOI: 10.1039/AN995200X056

Recipient of the 1995 Bendetti–Pichler Award

Other

DOI: 10.1039/AN995200099N

Editorial

Editorial

DOI: 10.1039/AN995200139N

You might also like

Compound Q&A

What precautions should be taken when handling lithium chloride hydrate (1:1:1) (CAS: 16712-20-2)?

When handling lithium chloride hydrate (1:1:1) (CAS: 16712-20-2), it is importan...

16712-20-2Lithium chloride hyd...
Compound Q&A

Is 4-(4H-1,2,4-Triazol-4-yl)piperidine (CAS: 690261-92-8) safe?

4-(4H-1,2,4-Triazol-4-yl)piperidine is generally considered safe for use in phar...

690261-92-84-(4H-1,2,4-Triazol-...
Compound Q&A

How should waste containing 1,3-Thiazole-2-carboxamide (CAS: 16733-85-0) be handled?

Waste containing 1,3-Thiazole-2-carboxamide (CAS: 16733-85-0) should be collecte...

16733-85-01,3-Thiazole-2-carbo...
Compound Q&A

What regulatory guidelines apply to 5-(Difluoromethyl)-2-fluorobenzonitrile (CAS: 934175-58-3)?

5-(Difluoromethyl)-2-fluorobenzonitrile (CAS: 934175-58-3) is subject to regulat...

934175-58-35-(Difluoromethyl)-2...
Compound Q&A

How is Methyl 3-acetamido-2-thiophenecarboxylate (CAS: 22288-79-5) typically synthesized?

Methyl 3-acetamido-2-thiophenecarboxylate can be synthesized by the reaction of ...

22288-79-5Methyl 3-acetamido-2...
Compound Q&A

What is 4-Isoquinolinecarbonitrile (CAS: 34846-65-6)?

4-Isoquinolinecarbonitrile is a chemical compound with the CAS number 34846-65-6...

34846-65-64-Isoquinolinecarbon...
Compound Q&A

How should Methyl 1H-1,2,3-triazole-4-carboxylate (CAS: 877309-59-6) be stored?

Store Methyl 1H-1,2,3-triazole-4-carboxylate (CAS: 877309-59-6) in a cool, dry p...

877309-59-6Methyl 1H-1,2,3-tria...
Compound Q&A

What regulatory guidelines apply to 6-Bromo[1,3]thiazolo[5,4-b]pyridin-2-amine (CAS: 1160791-13-8)?

6-Bromo[1,3]thiazolo[5,4-b]pyridin-2-amine (CAS: 1160791-13-8) is subject to the...

1160791-13-86-Bromo[1,3]thiazolo...
Compound Q&A

Is (2S,3S)-2-Ammonio-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoate (CAS: 23651-95-8) safe?

(2S,3S)-2-Ammonio-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoate (CAS: 23651-95-8) ...

23651-95-8(2S,3S)-2-Ammonio-3-...
Compound Q&A

What are the physical and chemical properties of 7-bromo-3-methyl-3,4-dihydroquinazolin-4-one (CAS: 1293987-84-4)?

7-Bromo-3-methyl-3,4-dihydroquinazolin-4-one is a solid with a crystalline form....

1293987-84-47-bromo-3-methyl-3,4...

Source Journal

Journal of Materials Chemistry A

Journal of Materials Chemistry A
CiteScore: 19.5
Self-citation Rate: 4.7%
Articles per Year: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.