Rational design of MoS2@COF hybrid composites promoting C-C coupling for photocatalytic CO2 reduction to ethane

Yang, Xingfan; Lan, Xingwang; Zhang, Yize; Li, Hangshuai; Bai, Guoyi

doi:10.1016/j.apcatb.2023.122393

Cited by 69 publications

(14 citation statements)

References 63 publications

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“…Additionally, the signal of CO* at 1935 cm –1 attributed to the surface adsorbed CO molecule appeared. According to the above analysis, the CO 2 -to-CO process over O 1 S 3 –Ni COPs can be broken down into the following steps: Based on the above experimental results and discussion, the possible mechanism of the whole reaction system (photosensitizer–photocatalyst–medium) was raised in Figure E. Upon visible-light irradiation, [Ru(bpy) 3 ] 2+ was excited to turn into the excited-state [Ru(bpy) 3 ] 2+ * and then further quenched by TEOA to form a reduction state.…”

Section: Results and Discussionmentioning

confidence: 99%

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO₂ with Fine Selectivity

Li,

Chen,

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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CO 2 photoconversion to syngas with superb selectivity is a splendid and bright option to achieve environmental improvement, energy substitution, and industrial needs. Herein, a series of Ni−porphyrin covalent organic polymers (COPs) interspersed with furan and thiophene using a mixed-blocksengineering strategy, named as O X S Y −Ni COPs (X and Y refer to the relative amounts of furan and thiophene blocks, respectively), are synthesized for photocatalytic CO 2 -to-syngas. Ni-coordinated porphyrin cores prefer to act as mediators of CO 2 -to-CO photoconversion because of the higher adsorption capacity of CO 2 . Ni-free porphyrins work mainly as active sites of H 2 photoevolution. Furthermore, introducing different amounts of furan and thiophene modulates jointly the electronic structure of Ni−porphyrin COPs and optimizes the conduction band alignment. The above controllable variables achieve a wonderful syngas (CO/H 2 ) ratio range from 2:1.06 to 1:1.04 for the Fischer−Tropsch process within common industrial reactions. Notably, the COP of the O 1 S 3 −Ni COPs exhibits excellent photocatalytic CO 2 -to-syngas activity under visible light, with a syngas yield of 8442.5 μmol g −1 h −1 (CO/H 2 = 1:1.02) and an apparent quantum efficiency (AQE) of 1.92% at 450 nm. This strategy would provide a significance path to design functional and efficient organic semiconductors.

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Section: Results and Discussionmentioning

confidence: 99%

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO₂ with Fine Selectivity

Li,

Chen,

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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“…In particular, S-scheme and direct Z-scheme heterojunctions have gained attention for their ability to promote the formation of C 2+ products. This is attributed to their optimized reduction potential, which proves beneficial for facilitating C–C coupling reactions. ,, For example, Yang et al reported a direct Z-scheme heterojunction consisting of MoS 2 and covalent organic frameworks (COFs), where the COFs were formed from 1,3,5-triformylphloroglucinol and 2,6-diaminoanthraquinone (DAAQ) in N,N-dimethylformamide (DMF) . Through X-ray photoelectron spectroscopy (XPS) characterizations and DFT calculations, they confirmed the formation of a built-in electric field between MoS 2 and the COF.…”

Section: Strategies For Enhancing C–c Couplingmentioning

confidence: 99%

Section: Strategies For Enhancing C–c Couplingmentioning

confidence: 99%

Materials Design for Photocatalytic CO₂ Conversion to C₂₊ Products

Man,

Jiang,

Guo

et al. 2024

Chem. Mater.

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Recently, there has been a burgeoning interest in photocatalytic CO 2 conversion from the general public and the scientific community. In theory, this technology can harness abundant solar energy to transform waste CO 2 into valuable chemicals, holding the potential to replace certain conventional chemical engineering methods for industrial chemical production in a sustainable and eco-friendly manner. Despite these promising aspects, the practical application of photocatalytic CO 2 conversion has been hampered by its limited activity and selectivity. Numerous efforts have been dedicated to enhancing the activity of photocatalytic CO 2 conversion over the past few decades, driving its progress. However, there has been a noticeable shortage of research focused on improving the selectivity of this process, particularly concerning the generation of high-value C 2+ products. In this Perspective, our primary objective is to delve into recent developments in photocatalytic CO 2 conversion, with a specific emphasis on the production of C 2+ products. Our discussion will commence by elucidating the fundamental principles and mechanisms underlying C−C coupling in this reaction. Subsequently, we will provide an overview of the current techniques available for fine-tuning the selectivity of these reactions toward the formation of C 2+ products. Finally, we will conclude this perspective by offering insights into the prospects and potential advancements in this field.

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“…Primarily, such a journey started with the invention of graphene in 2004 by Andre Geim and Kostya Novoselov. , Their outstanding properties significantly influence energy-related fields, such as solar cells, photo and electrocatalysis, light-emitting diodes (LEDs), transistors, and photodetectors. − Like graphene, layered transition metal dichalcogenides (TMDCs) were introduced as another class of 2D materials with intriguing properties that could potentially replace noble metals in catalytic applications. Molybdenum disulfide (MoS 2 ) mainly shows wide applications in various energy-related fields. − Most importantly, MoS 2 -based nanocomposites have developed significantly in photocatalysis, such as pollutant degradation, , H 2 production, , and CO 2 reduction. , Therefore, we explore the advancement of nanocomposites based on MoS 2 in photocatalytic H 2 evolution and CO 2 reduction.…”

Section: Introductionmentioning

confidence: 99%

MoS₂-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction

Balan

Mathew

2023

ACS Omega

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Photocatalysis is a facile and sustainable approach for energy conversion and environmental remediation by generating solar fuels from water splitting. Due to their two-dimensional (2D) layered structure and excellent physicochemical properties, molybdenum disulfide (MoS 2 ) has been effectively utilized in photocatalytic H 2 evolution reaction (HER) and CO 2 reduction. The photocatalytic efficiency of MoS 2 greatly depends on the active edge sites present in their layered structure. Modifications like reducing the layer numbers, creating defective structures, and adopting different morphologies produce more unsaturated S atoms as active edge sites. Hence, MoS 2 acts as a cocatalyst in nanocomposites/heterojunctions to facilitate the photogenerated electron transfer. This review highlights the role of MoS 2 as a cocatalyst for nanocomposites in H 2 evolution reaction and CO 2 reduction. The H 2 evolution activity has been described comprehensively as binary (with metal oxide, carbonaceous materials, metal sulfides, and metal−organic frameworks) and ternary composites of MoS 2 . Photocatalytic CO 2 reduction is a more complex and challenging process that demands an efficient light-responsive semiconductor catalyst to tackle the thermodynamic and kinetic factors. Photocatalytic reduction of CO 2 using MoS 2 is an emerging topic and would be a cost-effective substitute for noble catalysts. Herein, we also exclusively envisioned the possibility of layered MoS 2 and its composites in this area. This review is expected to furnish an understanding of the diverse roles of MoS 2 in solar fuel generation, thus endorsing an interest in utilizing this unique layered structure to create nanostructures for future energy applications.

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Rational design of MoS2@COF hybrid composites promoting C-C coupling for photocatalytic CO2 reduction to ethane

Cited by 69 publications

References 63 publications

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO₂ with Fine Selectivity

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO₂ with Fine Selectivity

Materials Design for Photocatalytic CO₂ Conversion to C₂₊ Products

MoS₂-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction

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Rational design of MoS2@COF hybrid composites promoting C-C coupling for photocatalytic CO2 reduction to ethane

Cited by 69 publications

References 63 publications

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO2 with Fine Selectivity

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO2 with Fine Selectivity

Materials Design for Photocatalytic CO2 Conversion to C2+ Products

MoS2-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction

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Product

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Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO₂ with Fine Selectivity

Mixed-Blocks-Driving Nickel–Porphyrin Covalent Organic Polymers for Photocatalytic Syngas Production from CO₂ with Fine Selectivity

Materials Design for Photocatalytic CO₂ Conversion to C₂₊ Products

MoS₂-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction