Construction of carbon nanotube-g-C3N4 nanocomposite photoanode for the enhanced photoelectrochemical activity in water splitting

Yousefzadeh, Samira; Fathi, Babak

doi:10.1016/j.jelechem.2020.114580

Cited by 18 publications

(7 citation statements)

References 25 publications

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“…Currently, C x N y -based materials are mainly being investigated for clean energy production processes, including water oxidation, water splitting, the ORR, the HER, and the production of hydrogen as a carbon-neutral fuel, and the conversion of CO 2 into useful compounds. − The appropriate features of carbon nitride together with the typical modifications and functionalizations generate new prospects for its future use in global clinical and sustainable energy fields. Delivering synergistic effects by offering more active sites and developed mass and charge transfer toward hydrogen and oxygen evolution processes and oxygen reduction reactions, the improved carbon nitride-based materials present higher electrocatalytic activities and higher durabilities.…”

Section: Future Scope and Challengesmentioning

confidence: 99%

Advances in Carbon Nitride-Based Materials and Their Electrocatalytic Applications

et al. 2022

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As a group of large-surface-area nonmetal materials, polymeric carbon nitride (C x N y ) and its hybrid structures are nowadays of ever-increasing interest for use in energy devices involved in energy conversion and storage, offering low expenses and facile production processes. With the growing requirement for clean and renewable energy generation and storage systems, progress in the replacement of expensive noble-metal catalysts with C x N y -based materials as efficient electrocatalysts has expanded considerably, and the demand for these materials has increased. The modified C x N y architectures are beneficial to electrocatalytic applications, improving their moderate electrical conductivities and capacity loss. The present review strives to highlight the recent advances in the research on the aforementioned identities of C x N y -derived materials and their structurally modified polymorphs. This review also discusses the use of C x N y -based materials in fuel cells, metal–air batteries, water splitting cells, and supercapacitor applications. Herein, we deal with electrocatalytic oxidation and reduction reactions such as hydrogen evolution, oxygen evolution, oxygen reduction, CO2 reduction, nitrogen reduction, etc. Each device has been studied for a clearer understanding of the patent applications, and the relevant experiments are reviewed separately. Additionally, the role of C x N y -derived materials in some general redox reactions capable of being exploited in any of the relevant devices is included.

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Section: Future Scope and Challengesmentioning

confidence: 99%

Advances in Carbon Nitride-Based Materials and Their Electrocatalytic Applications

et al. 2022

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“…Recently, some approaches have been introduced to enhance the solar-driven visible-light active photocatalytic performance of g-C 3 N 4 materials. For instance, the construction of heterostructured electrodes with g-C 3 N 4 and other semiconductors, doping with metals and non-metals, and the fabrication of mesoporous heterostructures [52][53][54]. Among them, the construction of g-C 3 N 4 -based binary and ternary heterostructured electrodes exhibited a superior PEC activity due to its reduced reunion of electron-hole pairs and the quick transfer of charge carriers at the interface of the heterostructured electrodes.…”

Section: Importance Of G-c 3 N 4 -Based Hybrid Heterostructured Elect...mentioning

confidence: 99%

“…Novel binary g-C 3 N 4 combined with carbon nanotubes (CN/CT) heterostructured film was systematically fabricated on the FTO substrate using a facile polycondensation method to enhance PEC water splitting ability [52]. The structural and morphological analysis evidence the formation of CN/CT heterostructured electrodes with synergistic interfaces.…”

Section: G-c 3 N 4 -Based Binary Heterostructured Photoelectrodes For...mentioning

confidence: 99%

“…The experimental evidence revealed that g-C 3 N 4 -could be used as a photocatalyst and decent catalyst support material for various metal oxide-based heterostructured electrodes fabrication [29,114]. However, hybridizing the g-C 3 N 4 with a second carbon component could further enhance the overall conductivity of the heterostructured electrodes and the durability of g-C 3 N 4 catalysts [40,52,115]. Thus far, experimental investigations indicated that g-C 3 N 4 -carbon hybrid catalysts could improve the overall PEC performance.…”

Section: Future Perspectivesmentioning

confidence: 99%

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Recent Trends in Graphitic Carbon Nitride-Based Binary and Ternary Heterostructured Electrodes for Photoelectrochemical Water Splitting

et al. 2021

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The graphitic carbon nitride (g-C3N4) is a class of two-dimensional layered material. The ever-growing research on this fascinating material is due to its unique visible light absorption, surface, electrocatalytic, and other physicochemical properties that can be useful to different energy conversion and storage applications. Photoelectrochemical (PEC) water splitting reaction is one of the promising applications of g-C3N4, wherein it acts as a durable catalyst support material. Very recently, the construction of g-C3N4-based binary and ternary heterostructures exhibited superior PEC water splitting performance owing to its reduced reunion of e-/h+ pairs and the fast transfer of charge carriers at the heterostructure interface. This review compiles the recent advances and challenges on g-C3N4-based heterostructured photocatalysts for the PEC water splitting reaction. After an overview of the available literature, we presume that g-C3N4-based photocatalysts showed enhanced PEC water splitting performance. Therefore, it is believed that these materials have tremendous opportunities to act as durable catalyst support for energy-related applications. However, researchers also considered several limitations and challenges for using C3N4 as an efficient catalyst support material that must be addressed. This review article provides an overview of the fundamental principles of PEC water splitting, the current PEC water splitting research trends on g-C3N4-based binary and ternary heterostructured electrodes with respect to different electrolytes, and the other key factors influencing their photoelectrochemical performance. Finally, the future research direction with several recommendations to improve the photocatalytic efficiency of these materials is also provided at the end.

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“…Water, the molecule of life, is abundant on Earth and contains hydrogen, which can be used as a fuel for various purposes. − However, extracting hydrogen gas from water in an environmentally friendly way remains a significant challenge. Traditionally, hydrogen can be generated via the electrolysis of water using solar or wind energy. − In biological systems, such as plants, trees, and certain bacteria, complex assemblies of molecules, including proteins and metallic complexes, are employed to split water in a process called photolysis, which is responsible for supplying energy to the biological entity while generating oxygen as a byproduct. − To mimic this process and produce hydrogen and oxygen from water in a green manner and at a low cost, scientists have been working to develop artificial materials and integrate them into a water-splitting or electrocatalysis device. − These materials, including both inorganic (oxides and halides) and organic (conducting polymers and dyes) materials, are less complex compared to their biological counterparts. Individually, these materials have certain drawbacks, because their conversion efficiency remains dependent upon various factors, including band gap (1.6–1.8 eV), long-range charge diffusion, and chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Current Status and Future of Organic–Inorganic Hybrid Perovskites for Photoelectrocatalysis Devices

Kumar,

Chang,

Baek

2023

Energy Fuels

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Given the importance of positive impacts on the environment, it is necessary to evaluate the progress made thus far with water-splitting or electrocatalysis devices. Thus, this review aims to provide a broad picture of artificially developed hybrid materials, including organic (macro)molecules and perovskites, that can function in a synergistic manner and catalyze water-splitting events. This review highlights efficient hybrid organic–inorganic molecular systems integrated within an electrocatalysis device for the purpose of extracting energy from water, by splitting it in a cheaper way, with less energy input to initiate the pathway. The following review will highlight a large number of organic (macro)molecules, such as oligomers, polymers, and metal–organic frameworks, that have been introduced as tandem layers within a water-splitting device. The organic tandem layer is supposed to provide extra stability and enhance the photocatalytic activity. The review also discusses the drawbacks of existing devices based on hybrid organic–inorganic molecular systems to show what improvements are needed and what could be the future of these eco-friendly devices in a sustainable society on Earth and beyond.

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Construction of carbon nanotube-g-C3N4 nanocomposite photoanode for the enhanced photoelectrochemical activity in water splitting

Cited by 18 publications

References 25 publications

Advances in Carbon Nitride-Based Materials and Their Electrocatalytic Applications

Advances in Carbon Nitride-Based Materials and Their Electrocatalytic Applications

Recent Trends in Graphitic Carbon Nitride-Based Binary and Ternary Heterostructured Electrodes for Photoelectrochemical Water Splitting

Current Status and Future of Organic–Inorganic Hybrid Perovskites for Photoelectrocatalysis Devices

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