Direct low concentration CO2 electroreduction to multicarbon products via rate-determining step tuning

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 29, 2024

Direct converting low concentration CO2 in industrial exhaust gases to high-value multi-carbon products via renewable-energy-powered electrochemical catalysis provides a sustainable strategy for utilization with minimized separation and purification capital energy cost. Nonetheless, the electrocatalytic conversion of dilute into value-added chemicals (C2+ products, e.g., ethylene) is frequently impeded by rate weak carbon intermediates' surface adsorption strength. Here, we fabricate range Cu catalysts comprising fine-tuned Cu(111)/Cu2O(111) interface boundary density crystal structures aimed at optimizing rate-determining step decreasing thermodynamic barriers adsorption. Utilizing engineering, attain Faradaic efficiency (51.9 ± 2.8) % partial current (34.5 6.4) mA·cm−2 C2+ feed condition (5% v/v), comparing state-of-art electrolysis. In contrast prevailing belief that activation ( $${{CO}}_{2}+{e}^{-}+\, * \,\to {}^{ }{CO}_{2}^{-}$$ ) governs reaction rate, discover that, under conditions, shifts generation *COOH $${}^{ } {{CO}}_{2}^{-}+{H}_{2}O\to {COOH}+{{OH}}^{-}({aq})$$ Cu0/Cu1+ boundary, resulting better production performance. The development operate resembling waste holds promise reduction. authors report vacuum calcination approach regulating on Cu-based can electro-catalyze low-concentration CO2.

Language: Английский

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An Overview of Light-Assisted CO₂ Cycloaddition for Cyclic Carbonate: Paths of Photo-Induced Thermal-Catalysis, Photocatalysis and Photo-Thermal Synergistic Catalysis

Science for energy and environment., Journal Year: 2025, Volume and Issue: unknown, P. 1 - 1

Published: Jan. 6, 2025

Review An Overview of Light-Assisted CO2 Cycloaddition for Cyclic Carbonate: Paths Photo-Induced Thermal-Catalysis, Photocatalysis and Photo-Thermal Synergistic Catalysis Bin Zhu 1, Qichao Cao Xin Ding 1,*, Xiaolong Yang 1,2,* 1 School Chemistry Chemical Engineering, Qingdao University, 308 NingXia Road, 266071, China 2 State Key Laboratory Bio-Fibers Eco-Textiles, Collaborative Innovation Center Shandong Marine Bio-Based Fibers Ecological Textiles, * Correspondence: [email protected] (X.D.); [email protected] (X.Y.) Received: 4 November 2024; Revised: 6 January Accepted: 22 2025; Published: February 2026 Abstract: The increase concentration significantly results in severe greenhouse effect. Reducing emission chemically utilizing are effective means to solve this problem. cycloaddition reaction with epoxide is atomically economical environmentally friendly. However, current catalytic systems still have a long way go high efficiency under mild conditions. Solar energy has demonstrated excellent characteristics direct photothermal utilization, photocatalytic reactions, photoelectrochemical reactions recently. Therefore, herein review summarizes the research work on solar mediated past decade. Firstly, heat generated by effects confined local space can be more effectively absorbed molecules efficient greatly reducing consumption traditional thermal reactions. carbon-based materials, polyoxometalates (POM), metal organic frameworks (MOFs), covalent (COFs), ionic liquids (ILs) as catalysts reviewed analyzed; Secondly, semiconductor exhibit activity due activation reactants photogenerated charges holes. Single atom catalysts, composites, atomic clusters, MOFs, COFs, Porous polymers (POPs), others used such Finally, light synergistic catalysis system external heating synergy introduced analyzed. Last but not least, some issues development analyzed discussed, future prospects proposed basis.

Language: Английский

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Enhancement Strategies of Calcium Looping Technology and CaO‐Based Sorbents for Carbon Capture

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Abstract As global warming intensifies and energy resources deplete, carbon capture sustainable conversion technologies gain increasing importance. Among these, calcium looping (CaL) technology has demonstrated promising cost‐effectiveness ease of integration with other systems. However, severe sintering CaO‐based sorbents occurs during cyclic carbonation calcination, resulting in a significant decrease CO 2 capacity stability. This paper reviews enhancement strategies aggregate for synthetic over the past 10 years, compiling tabular dataset 1042 reported materials, to compare effects synthesis methods operation conditions on decay rate capacity. Sol‐gel, combustion, template are recommended producing high porosity sorbents. The precursors organic acids used synthesis, addition dopants, also play important roles affecting sorbent performance. examines relationship between material conditions, performance determine feasibility applying machine learning materials development. discusses several possible artificial intelligence potential designing innovative suitable long‐term industrial applications, XGBoost model providing predictive capacity, particularly when working relatively small, tabular, datasets.

Language: Английский

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Copolymerization with macrocyclic compound to prepare high-selectivity PIM-1-based carbon capture membranes

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132535 - 132535

Published: March 1, 2025

Language: Английский

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Review of Ordered Mesoporous Carbon-Based Adsorbents for CO₂ Capture: Synthesis, Action Mechanism, and Potential

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: May 27, 2025

Language: Английский

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Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture

Carbon Capture Science & Technology, Journal Year: 2024, Volume and Issue: 13, P. 100305 - 100305

Published: Sept. 20, 2024

Language: Английский

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