Designs of Tandem Catalysts and Cascade Catalytic Systems for CO₂ Upgrading

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(43)

Опубликована: Июнь 20, 2023

Upgrading CO2 into multi-carbon (C2+) compounds through the reduction reaction (CO2 RR) offers a practical approach to mitigate atmospheric while simultaneously producing high value chemicals. The pathways for C2+ production involve multi-step proton-coupled electron transfer (PCET) and C-C coupling processes. By increasing surface coverage of adsorbed protons (*Had ) *CO intermediates, kinetics PCET can be accelerated, thereby promoting production. However, *Had are competitively intermediates on monocomponent catalysts, making it difficult break linear scaling relationship between adsorption energies /*CO intermediate. Recently, tandem catalysts consisting multicomponents have been developed improve or by enhancing water dissociation -to-CO auxiliary sites. In this context, we provide comprehensive overview design principles based products. Moreover, development cascade RR catalytic systems that integrate with downstream catalysis has expanded range potential upgrading Therefore, also discuss recent advancements in systems, highlighting challenges perspectives these systems.

Язык: Английский

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Materials Containing Single‐, Di‐, Tri‐, and Multi‐Metal Atoms Bonded to C, N, S, P, B, and O Species as Advanced Catalysts for Energy, Sensor, and Biomedical Applications

Advanced Science, Год журнала: 2024, Номер 11(33)

Опубликована: Июль 1, 2024

Abstract Modifying the coordination or local environments of single‐, di‐, tri‐, and multi‐metal atom (SMA/DMA/TMA/MMA)‐based materials is one best strategies for increasing catalytic activities, selectivity, long‐term durability these materials. Advanced sheet supported by metal atom‐based have become a critical topic in fields renewable energy conversion systems, storage devices, sensors, biomedicine owing to maximum utilization efficiency, precisely located centers, specific electron configurations, unique reactivity, precise chemical tunability. Several offer excellent support are attractive applications energy, medical research, such as oxygen reduction, production, hydrogen generation, fuel selective detection, enzymatic reactions. The strong metal–metal metal–carbon with metal–heteroatom (i.e., N, S, P, B, O) bonds stabilize optimize electronic structures atoms due interfacial interactions, yielding activities. These provide models understanding fundamental problems multistep This review summarizes substrate structure‐activity relationship different active sites based on experimental theoretical data. Additionally, new synthesis procedures, physicochemical characterizations, biomedical discussed. Finally, remaining challenges developing efficient SMA/DMA/TMA/MMA‐based presented.

Язык: Английский

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Recent Advances in Electrochemical CO₂‐to‐Multicarbon Conversion: From Fundamentals to Industrialization

Advanced Energy Materials, Год журнала: 2023, Номер 13(47)

Опубликована: Ноя. 2, 2023

Abstract The electrochemical CO 2 (eCO )‐to‐multicarbon conversion with higher value is regarded as a potential way to promote the transformation of industrial production and green balance carbon cycle. Recently, series advances have been achieved in progress eCO ‐to‐multicarbon conversion, including in‐depth exploration coupling mechanisms, up‐to‐date development characterization techniques, novel interdisciplinary design strategies catalysts electrolytic systems. Therefore, it essential systematically overview from fundamentals industrialization, compensating for limited insufficient reviews that reported. To fill aforementioned research gap, this focused on industrialization. First, possible catalytic mechanisms are accordingly summarized order reduction, small molecule‐coupled tandem conversion. Second, situ technologies assisting rationalization presented. Third, optimizing systems briefly classified advance industrialization process. Finally, challenges perspectives further reasonably proposed, aiming offer insights following work field.

Язык: Английский

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Cu and Zn promoted Al-fumarate metal organic frameworks for electrocatalytic CO₂ reduction

RSC Advances, Год журнала: 2024, Номер 14(5), С. 3489 - 3497

Опубликована: Янв. 1, 2024

Metal organic frameworks (MOFs) are attractive materials to generate multifunctional catalysts for the electrocatalytic reduction of CO2 hydrocarbons. Here we report synthesis Cu and Zn modified Al-fumarate (Al-fum) MOFs, in which promotes selective CO oxygenates hydrocarbons an cascade. nanoparticles (NPs) were introduced Al-fum MOF by a double solvent method promote in-pore metal deposition, resulting reduced Cu-Zn@Al-fum drop-cast on hydrophobic gas diffusion electrode electrochemical study. is active electroreduction, with loading influencing product yields. The highest faradaic efficiency (FE) 62% achieved at -1.0 V vs. RHE conversion into CO, HCOOH, CH4, C2H4 C2H5OH, FE 28% C2H5OH pH 6.8. chemically robust matrix disperse NPs, improving electrocatalyst lifetime during minimizing transition aggregation operation.

Язык: Английский

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Recent Developments in Copper‐Based Catalysts for Enhanced Electrochemical CO₂ Reduction

Advanced Sustainable Systems, Год журнала: 2024, Номер 8(6)

Опубликована: Янв. 22, 2024

Abstract The drastic climate change imposing adverse environmental effects receives serious research attention for finding a suitable solution. replacement of conventional fossil energy sources with renewable and sustainable is the potential route; thus, manifests as viable Accordingly, electrocatalytic carbon dioxide (CO 2 ) reduction process coupled source an emerging strategy adopting approach. However, existing challenges in designing catalyst, support material, electrolyte, inadequate selectivity, intermediate reactions CO demand substantial advancement. Numerous studies reported highlight importance catalyst design product selectivity. Importantly, copper‐based catalysts, capable output multi‐carbon products, are “star” material. This review; therefore, focuses on strategies, unique structural/morphological features, selectivity diverse catalysts. outstanding findings catalysts corresponding products critically discussed adequate figures merits. impact features detail. future scope author perspectives feasible application summarized.

Язык: Английский

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Advances in Layered double Hydroxide-based Materials for CO2 Electroreduction: A Comprehensive Review of recent Research Progress

Applied Clay Science, Год журнала: 2024, Номер 253, С. 107362 - 107362

Опубликована: Апрель 8, 2024

Язык: Английский

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Insight on Zn-Al LDH as electrocatalyst for CO2 reduction reaction: An in-situ ATR-IR study

Journal of CO2 Utilization, Год журнала: 2024, Номер 83, С. 102804 - 102804

Опубликована: Май 1, 2024

Electrochemical reduction of CO2 (CO2RR) is expected to play a key role among the various strategies being explored limit global warming. In this scenario, Layered Double Hydroxides (LDHs) are emerging as promising class electrocatalysts replace most used noble metals. work three Zn-Al LDH with different Zn2+/Al3+ ratio were synthesized and characterized by means XRD, STEM-EDX HR-TEM. Their suitability for CO2RR CO was assessed custom-made three-compartment cell, showing an increase in selectivity decreasing ratio. The interaction samples firstly volumetric adsorption measurements, exhibiting capture capacity evolution CO2-saturated liquid flow then deeply investigated in-situ ATR-IR spectroscopy. displayed vibrational region carbonate-like species (1800–1200 cm−1). To better discriminate carbonate cyclohexane also employed. A definitive assignment main IR bands carried out studying spectral behavior observed experiments comparing these results existing literature. Interestingly, 1:2 LDH, efficient electrocatalyst CO2RR, sole sample higher monodentate total bidentate carbonates ratio, suggesting that existence content low coordination oxygen anions stronger basic character can influence final catalytic activity.

Язык: Английский

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Modulating CO2 Reduction Selectivity over Multi-Metal Electrocatalysts Derived from 0D Alloyed Halide Perovskite Crystals

Nano Energy, Год журнала: 2025, Номер unknown, С. 110684 - 110684

Опубликована: Янв. 1, 2025

Язык: Английский

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Electrosynthesis of co Ni and Fe Ni LDHs and studying the effect of intercalated cobalt and iron on the electrocatalysis and determination of glucose in human salivary samples

Results in Chemistry, Год журнала: 2025, Номер unknown, С. 102067 - 102067

Опубликована: Янв. 1, 2025

Язык: Английский

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Promoting zirconia with carbon: enhanced hybrid ZrO2/C catalyst for the ketonization of diluted aqueous acetic acid

Carbon, Год журнала: 2025, Номер unknown, С. 120203 - 120203

Опубликована: Март 1, 2025

Язык: Английский

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