Recent progress in advanced strategies to enhance the photocatalytic performance of metal molybdates for H2 production and CO2 reduction

Journal of Alloys and Compounds, Год журнала: 2023, Номер 971, С. 172665 - 172665

Опубликована: Окт. 28, 2023

Язык: Английский

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Exploring Ligand-Controlled C₂ Product Selectivity in Carbon Dioxide Reduction with Copper Metal–Organic Framework Nanosheets

Inorganic Chemistry, Год журнала: 2023, Номер 62(23), С. 8803 - 8811

Опубликована: Май 30, 2023

The suitable choice of an electrocatalyst is crucial in controlling the selectivity electrocatalytic CO2 reduction products. Herein, we have explored effect different ligand environments 2D metal-organic frameworks (MOFs), viz., copper naphthalenedicarboxylate (Cu-UNDC) and benzenedicarboxylate (Cu-UBDC). change modulates structure MOFs as well electronic environment around center. variation coordination active Cu center changes toward C2 In process, Cu-UNDC produced 24.3% Faradaic efficiency (FE) for products─far better than that Cu-UBDC (13.2%). contrast to CO2RR, presence light, (26.2%) achieved a FE products (21.8%).

Язык: Английский

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Recent advancements in the environmental significance of the graphitic carbon nitride-based materials

Desalination and Water Treatment, Год журнала: 2024, Номер 318, С. 100385 - 100385

Опубликована: Апрель 1, 2024

Graphitic carbon nitride (g-C3N4) has been proven as a potential photocatalyst in the research arena of water remediation, energy harvesting and organic dye degradation etc. Even though, g-C3N4 profound properties viz. photochemical stability, intriguing electronic band structures, suitable light harvesting, bandgap 2.7 eV even it significant drawbacks such poor disparity, low surface area high recombination rate photogenerated electron-hole pairs that leads to reduced photocatalytic activity. However, these could be overcome by compositing with sulfides, ferrites other metal oxides which provides charge separation, increased better absorption. This detailed review focuses on various synthesis methods g-C3N4-based secondary/ternary nanocomposite applications hydrogen evolution, pollutant degradation, oxygen evolution CO2 photoreduction. Alongside, this critical also summarizes recent literature deals preparation g-C3N4/polymer composites their storage environmental remediation applications. Hence, article would attract broad range readers working space based composite towards

Язык: Английский

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A New Model of Carbon Nitride as a Substrate to Support Single Metal Atom

The Journal of Physical Chemistry C, Год журнала: 2024, Номер 128(17), С. 7106 - 7114

Опубликована: Апрель 18, 2024

Carbon nitrides are commonly employed as substrates to anchor single metal atoms. Numerous theoretical studies have previously characterized these single-atom systems using the pristine g-C3N4 structure, featuring a C6N7 motif. However, relatively large pores in may not effectively coordinate with cations, resulting discordance coordination environment determined by experimental characterization. In this study, we introduce novel model denoted CN-N4, which preserves essential motif, while offering four nitrogen sites for binding. Compared g-C3N4, binding affinity between and new substrate is significantly enhanced, similar that of studied nitrogen-doped graphene (N-gra). Additionally, assessed catalytic performance various reactions, including hydrogen evolution reaction (HER), carbon dioxide reduction (CO2RR), oxygen (ORR). The CN-N4-supported system exhibits activity comparable corresponding N-gra-supported species. Fe- Co-centered SACs can be promising catalysts ORR, stable Cu-g-C3N4 active HER CO2RR, consistent reported experiments. addition, V-CN-N4 Rh-CN-N4 predicted candidates catalyze respectively. We suggest CN-N4 aptly captures local structure nitride-based materials high number, providing an alternative foundation investigating mechanisms catalysts.

Язык: Английский

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Unlocking the potential of atomic Ni reactive sites through interlayer confinement towards solar-to-hydrogen conversion from water

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 349, С. 123893 - 123893

Опубликована: Апрель 24, 2024

Язык: Английский

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