Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting
Abstract Photoelectrochemical (PEC) water splitting is recognized as a sustainable strategy for hydrogen generation due to its abundant hydrogen source, utilization of inexhaustible solar energy, high‐purity product, and environment‐friendly process. To actualize a practical PEC water splitting, it...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-06-01
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| Series: | Carbon Energy |
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| Online Access: | https://doi.org/10.1002/cey2.48 |
| _version_ | 1818927801740296192 |
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| author | Liqun Wang Wenping Si Yueyu Tong Feng Hou Daniele Pergolesi Jungang Hou Thomas Lippert Shi Xue Dou Ji Liang |
| author_facet | Liqun Wang Wenping Si Yueyu Tong Feng Hou Daniele Pergolesi Jungang Hou Thomas Lippert Shi Xue Dou Ji Liang |
| author_sort | Liqun Wang |
| collection | DOAJ |
| description | Abstract Photoelectrochemical (PEC) water splitting is recognized as a sustainable strategy for hydrogen generation due to its abundant hydrogen source, utilization of inexhaustible solar energy, high‐purity product, and environment‐friendly process. To actualize a practical PEC water splitting, it is paramount to develop efficient, stable, safe, and low‐cost photoelectrode materials. Recently, graphitic carbon nitride (g‐C3N4) has aroused a great interest in the new generation photoelectrode materials because of its unique features, such as suitable band structure for water splitting, a certain range of visible light absorption, nontoxicity, and good stability. Some inherent defects of g‐C3N4, however, seriously impair further improvement on PEC performance, including low electronic conductivity, high recombination rate of photogenerated charges, and limited visible light absorption at long wavelength range. Construction of g‐C3N4‐based nanosized heteroarrays as photoelectrodes has been regarded as a promising strategy to circumvent these inherent limitations and achieve the high‐performance PEC water splitting due to the accelerated exciton separation and the reduced combination of photogenerated electrons/holes. Herein, we summarize in detail the latest progress of g‐C3N4‐based nanosized heteroarrays in PEC water‐splitting photoelectrodes. Firstly, the unique advantages of this type of photoelectrodes, including the highly ordered nanoarray architectures and the heterojunctions, are highlighted. Then, different g‐C3N4‐based nanosized heteroarrays are comprehensively discussed, in terms of their fabrication methods, PEC capacities, and mechanisms, etc. To conclude, the key challenges and possible solutions for future development on g‐C3N4‐based nanosized heteroarray photoelectrodes are discussed. |
| first_indexed | 2024-12-20T03:18:47Z |
| format | Article |
| id | doaj.art-582a28bea2b64cfa9ce602f89367b25b |
| institution | Directory Open Access Journal |
| issn | 2637-9368 |
| language | English |
| last_indexed | 2024-12-20T03:18:47Z |
| publishDate | 2020-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Carbon Energy |
| spelling | doaj.art-582a28bea2b64cfa9ce602f89367b25b2022-12-21T19:55:16ZengWileyCarbon Energy2637-93682020-06-012222325010.1002/cey2.48Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splittingLiqun Wang0Wenping Si1Yueyu Tong2Feng Hou3Daniele Pergolesi4Jungang Hou5Thomas Lippert6Shi Xue Dou7Ji Liang8Applied Physics Department, College of Physics and Materials Science Tianjin Normal University Tianjin ChinaKey Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering Tianjin University Tianjin ChinaInstitute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials University of Wollongong North Wollongong NSW AustraliaKey Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering Tianjin University Tianjin ChinaLaboratory for Multiscale Materials Experiments Paul Scherrer Institute Villigen PSI SwitzerlandState Key Laboratory of Fine Chemicals, DUT‐KTH Joint Education and Research Center on Molecular Devices, Institute of Energy Science and Technology Dalian University of Technology (DUT) Dalian ChinaLaboratory for Multiscale Materials Experiments Paul Scherrer Institute Villigen PSI SwitzerlandInstitute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials University of Wollongong North Wollongong NSW AustraliaKey Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering Tianjin University Tianjin ChinaAbstract Photoelectrochemical (PEC) water splitting is recognized as a sustainable strategy for hydrogen generation due to its abundant hydrogen source, utilization of inexhaustible solar energy, high‐purity product, and environment‐friendly process. To actualize a practical PEC water splitting, it is paramount to develop efficient, stable, safe, and low‐cost photoelectrode materials. Recently, graphitic carbon nitride (g‐C3N4) has aroused a great interest in the new generation photoelectrode materials because of its unique features, such as suitable band structure for water splitting, a certain range of visible light absorption, nontoxicity, and good stability. Some inherent defects of g‐C3N4, however, seriously impair further improvement on PEC performance, including low electronic conductivity, high recombination rate of photogenerated charges, and limited visible light absorption at long wavelength range. Construction of g‐C3N4‐based nanosized heteroarrays as photoelectrodes has been regarded as a promising strategy to circumvent these inherent limitations and achieve the high‐performance PEC water splitting due to the accelerated exciton separation and the reduced combination of photogenerated electrons/holes. Herein, we summarize in detail the latest progress of g‐C3N4‐based nanosized heteroarrays in PEC water‐splitting photoelectrodes. Firstly, the unique advantages of this type of photoelectrodes, including the highly ordered nanoarray architectures and the heterojunctions, are highlighted. Then, different g‐C3N4‐based nanosized heteroarrays are comprehensively discussed, in terms of their fabrication methods, PEC capacities, and mechanisms, etc. To conclude, the key challenges and possible solutions for future development on g‐C3N4‐based nanosized heteroarray photoelectrodes are discussed.https://doi.org/10.1002/cey2.48graphitic carbon nitrideheterojunctionsnanoarraysphotoelectrochemical water splitting |
| spellingShingle | Liqun Wang Wenping Si Yueyu Tong Feng Hou Daniele Pergolesi Jungang Hou Thomas Lippert Shi Xue Dou Ji Liang Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting Carbon Energy graphitic carbon nitride heterojunctions nanoarrays photoelectrochemical water splitting |
| title | Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting |
| title_full | Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting |
| title_fullStr | Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting |
| title_full_unstemmed | Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting |
| title_short | Graphitic carbon nitride (g‐C3N4)‐based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting |
| title_sort | graphitic carbon nitride g c3n4 based nanosized heteroarrays promising materials for photoelectrochemical water splitting |
| topic | graphitic carbon nitride heterojunctions nanoarrays photoelectrochemical water splitting |
| url | https://doi.org/10.1002/cey2.48 |
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