Co₃O₄/g-C₃N₄ nanocomposite for enriched electrochemical water splitting

Mohana, P.; Swathi, S.; Yuvakkumar, R.; Ravi, G.; Thambidurai, M.; Nguyen, Hung D.

doi:10.1016/j.ijhydene.2023.08.038

Cited by 5 publications

(1 citation statement)

References 94 publications

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“…The nitrogen atoms in g-C 3 N 4 have a lone pair of electrons and can change the electron configuration of the supported materials by interfacial charge redistribution. Studies on the Co 3 O 4 /g-C 3 N 4 nanocomposite [94] and g-C 3 N 4 /Co 3 O 4 /α-Fe 2 O 3 [95] have proved that a strong coupling interaction is formed at the interface between the g-C 3 N 4 and the oxide, which acts as an effective electron transport channel and exposes more catalytically active sites, leading to outstanding OER performances with η 20 values of 170 and 359 mV and Tafel values of 188 and 116 mV dec −1 , respectively. Following the synthesis of g-C 3 N 4 NSs, CdSe quantum dots (QDs)/CN heterostructures are created through the successive ionic layer adsorption and reaction (SILAR) process (Figure 4b) [92].…”

Section: At Low Current Density (Lcd)mentioning

confidence: 99%

Carbon-Based Composites for Oxygen Evolution Reaction Electrocatalysts: Design, Fabrication, and Application

Gao,

Yao,

Wang

et al. 2024

Materials

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The four-electron oxidation process of the oxygen evolution reaction (OER) highly influences the performance of many green energy storage and conversion devices due to its sluggish kinetics. The fabrication of cost-effective OER electrocatalysts via a facile and green method is, hence, highly desirable. This review summarizes and discusses the recent progress in creating carbon-based materials for alkaline OER. The contents mainly focus on the design, fabrication, and application of carbon-based materials for alkaline OER, including metal-free carbon materials, carbon-based supported composites, and carbon-based material core–shell hybrids. The work presents references and suggestions for the rational design of highly efficient carbon-based OER materials.

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Section: At Low Current Density (Lcd)mentioning

confidence: 99%

Carbon-Based Composites for Oxygen Evolution Reaction Electrocatalysts: Design, Fabrication, and Application

Gao,

Yao,

Wang

et al. 2024

Materials

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Empowering sustainability: Charting the seven years of progress in g-C₃N₄ based materials and their crucial role in building a greener future

Soni,

Teli,

Teli

et al. 2024

Sustainable Chemistry and Pharmacy

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Dual-functional Cu2O/g-C3N4 heterojunctions: a high-performance SERS sensor and photocatalytic self-cleaning system for water pollution detection and remediation

Yang,

Li,

Huang

et al. 2024

Microsyst Nanoeng

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This study introduces a multifunctional device based on Cu2O/g-C3N4 monitoring and purification p–n heterojunctions (MPHs), seamlessly integrating surface-enhanced Raman scattering (SERS) detection with photocatalytic degradation capabilities. The SERS and photocatalytic performances of the Cu2O in various morphologies, g-C3N4 nanosheets (NSs) and Cu2O/g-C3N4 MPHs with different g-C3N4 mass ratios were systematically evaluated, with a particular emphasis on the Cu2O/g-C3N4-0.2 MPH, where g-C3N4 constituted 20% of the total mass. Multiple optical and electrochemical tests revealed that the Cu2O/g-C3N4-0.2 MPH effectively enhances charge separation and reduces charge transfer resistance. The Cu2O/g-C3N4-0.2 SERS sensor exhibited a relative standard deviation (RSD) below 15% and achieved an enhancement factor (EF) of 2.43 × 106 for 4-ATP detection, demonstrating its high sensitivity and consistency. Additionally, it demonstrated a 98.3% degradation efficiency for methyl orange (MO) under visible light within 90 min. Remarkably, even after 216 days, its photocatalytic efficiency remained at 93.7%, and it retained an 84.0% efficiency after four cycles. XRD and SEM analyses before and after cycling, as well as after 216 days, confirmed the structural and morphological stability of the composite, demonstrating its cyclic and long-term stability. The excellent performance of the Cu2O/g-C3N4 MPH is attributed to its Z-type mechanism, as verified by radical trapping experiments. The evaluation of the self-cleaning performance of the Cu2O/g-C3N4-0.2 SERS sensor demonstrated that its Z-scheme structure not only provides excellent self-cleaning capability but also enables the detection of both individual and mixed pollutants, while significantly enhancing the SERS signal response through an effective charge transfer enhancement mechanism.

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Co₃O₄/g-C₃N₄ nanocomposite for enriched electrochemical water splitting

Cited by 5 publications

References 94 publications

Carbon-Based Composites for Oxygen Evolution Reaction Electrocatalysts: Design, Fabrication, and Application

Carbon-Based Composites for Oxygen Evolution Reaction Electrocatalysts: Design, Fabrication, and Application

Empowering sustainability: Charting the seven years of progress in g-C₃N₄ based materials and their crucial role in building a greener future

Dual-functional Cu2O/g-C3N4 heterojunctions: a high-performance SERS sensor and photocatalytic self-cleaning system for water pollution detection and remediation

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