Construction of Cobalt Porphyrin‐Modified Cu₂O Nanowire Array as a Tandem Electrocatalyst for Enhanced CO₂ Reduction to C₂ Products

Small, Год журнала: 2024, Номер 20(32)

Опубликована: Март 19, 2024

Abstract Here, the molecule‐modified Cu‐based array is first constructed as self‐supporting tandem catalyst for electrocatalytic CO 2 reduction reaction (CO RR) to C products. The modification of cuprous oxide nanowire on copper mesh (Cu O@CM) with cobalt(II) tetraphenylporphyrin (CoTPP) molecules achieved via a simple liquid phase method. systematical characterizations confirm that formation axial coordinated Co‐O‐Cu bond between Cu O and CoTPP can significantly promote dispersion electrical properties CoTPP‐Cu O@CM heterojunction array. Consequently, compared array, optimized sample electrocatalyst realize 2.08‐fold Faraday efficiency (73.2% vs 35.2%) 2.54‐fold current density (‒52.9 ‒20.8 mA cm –2 ) at ‒1.1 V versus RHE in an H‐cell. comprehensive performance superior most reported materials Further study reveals adsorption restrain hydrogen evolution reaction, improve coverage * intermediate, maintain existence Cu(I) low potential.

Язык: Английский

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Enabling Interfacial Lattice Matching by Selective Epitaxial Growth of CuS Crystals on Bi2WO6 Nanosheets for Efficient CO2 Photoreduction into Solar Fuels

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 27, 2024

Abstract Photocatalytic CO 2 reduction serves as an important technology for value‐added solar fuel production, however, it is generally limited by interfacial charge transport. To address this limitation, a two‐dimensional/two‐dimensional (2D/2D) p‐n heterojunction CuS‐Bi WO 6 (CS‐BWO) with highly connected and matched lattices was designed in work via two‐step hydrothermal tandem synthesis strategy. The integration of CuS BWO created robust interface electric field provided fast transfer channels due to the function difference, well lattices. combination promoted electron from Cu Bi sites, leading coordination sites high electronic density low oxidation state. nanosheets facilitated adsorption activation , generation high‐coverage key intermediate b‐CO 3 2− while (CS) acted broad light‐harvesting material provide abundant photoinduced electrons that were injected into conduction band photoreduction reaction. Remarkably, CS‐BWO exhibited average CH 4 yields 33.9 16.4 μmol g −1 h respectively, which significantly higher than those CS, BWO, physical mixture samples. This innovative design strategy developing high‐activity photocatalyst converting fuels.

Язык: Английский

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Design, modulation and current advances in energy and environmental applications over In2O3-based photocatalysts

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 128761 - 128761

Опубликована: Июль 9, 2024

Язык: Английский

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Progress of photocatalytic CO2 reduction toward multi-carbon products

Science China Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Окт. 8, 2024

Язык: Английский

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Cu-based materials as co-catalysts for photocatalytic CO2 reduction: A mini review

Materials Today Sustainability, Год журнала: 2024, Номер 26, С. 100796 - 100796

Опубликована: Май 6, 2024

Язык: Английский

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Precisely Regulating Asymmetric Charge Distribution by Single‐Atom Central Doped Ag‐Based Series Clusters for Enhanced Photoreduction of CO₂ to Alcohol Fuels

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(46)

Опубликована: Июль 25, 2024

High efficiently photocatalytic CO

Язык: Английский

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Experimental and Theoretical Insights into Single Atoms, Dual Atoms, and Sub‐Nanocluster Catalysts for Electrochemical CO₂ Reduction (CO₂RR) to High‐Value Products

Advanced Materials, Год журнала: 2024, Номер 36(52)

Опубликована: Ноя. 26, 2024

Abstract Electrocatalytic carbon dioxide (CO 2 ) conversion into valuable chemicals paves the way for realization of recycling. Downsizing catalysts to single‐atom (SACs), dual‐atom (DACs), and sub‐nanocluster (SNCCs) has generated highly active selective CO transformation reduced products. This is due introduction numerous sites, unsaturated coordination environments, efficient atom utilization, confinement effect compared their nanoparticle counterparts. Herein, recent Cu‐based SACs are first reviewed newly emerged DACs SNCCs expanding catalysis electrocatalytic reduction RR) high‐value products discussed. Tandem SAC–nanocatalysts (NCs) (SAC–NCs) also discussed RR Then, non‐Cu‐based SACs, DACs, SAC–NCs, theoretical calculations various transition‐metal summarized. Compared previous achievements less‐reduced products, this review focuses on double objective achieving full increasing selectivity formation rate toward C–C coupled with additional emphasis stability catalysts. Finally, through combined experimental research, future outlooks offered further develop over isolated atoms sub‐nanometal clusters.

Язык: Английский

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Strategies for Optimizing the Efficiency and Selectivity of Photocatalytic Aqueous CO2 Reduction: Catalyst Design and Operating Conditions

Nano Energy, Год журнала: 2024, Номер 133, С. 110460 - 110460

Опубликована: Ноя. 9, 2024

Язык: Английский

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耦合异质结和Pd纳米颗粒的高效电荷接力促进CO2 光还原为C2H6

Science China Materials, Год журнала: 2024, Номер 67(9), С. 2949 - 2956

Опубликована: Июль 5, 2024

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Strong Photothermal Tandem Catalysis for CO₂ Reduction to C₂H₄ Boosted by Zr–O–W Interfacial H₂O Dissociation

ACS Catalysis, Год журнала: 2024, Номер unknown, С. 1 - 13

Опубликована: Дек. 12, 2024

Solar-driven CO2 reduction to C2 products (e.g., C2H4) represents a promising approach for achieving carbon neutrality goals. Nevertheless, the high reaction barriers associated with C–C coupling and H2O dissociation hinder multistep proton-coupled electron transfer (PCET) processes. Herein, we report zirconium–tungsten oxide heterostructure single atom Pt anchored on its surface (denoted as Pt/(Zr–W)Ox) promote tandem photocatalytic conversion of C2H4. Specifically, CO generated at Pt/ZrO2–x region migrates Pt/WO3–x region, where process is enabled. Furthermore, electron-deficient W Zr–O–W interface serves Lewis acid site, boosting molecules generate active hydrogen species (*H). The abundant supply *H lowers formation key intermediates *COOH *CHO. Under concentrated solar irradiation, C2H4 yield reaches 242 μmol·g–1 in 0.5 h an electron-based selectivity 83.9%, solar-to-chemical energy efficiency 1.17%. This work provides unique insights into design heterostructured photocatalysts efficient feeding reduction.

Язык: Английский

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