Review on strategies for improving the added value and expanding the scope of CO₂ electroreduction products

Chemical Society Reviews, Год журнала: 2024, Номер 53(10), С. 5149 - 5189

Опубликована: Янв. 1, 2024

This review summarizes promising strategies including the design of catalysts and construction coupled electrocatalytic reaction systems, aimed at achieving selective production various products from CO 2 electroreduction.

Язык: Английский

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An asymmetrically coordinated ZnCoFe hetero-trimetallic atom catalyst enhances the electrocatalytic oxygen reaction

Energy & Environmental Science, Год журнала: 2024, Номер 17(6), С. 2298 - 2308

Опубликована: Янв. 1, 2024

In this work, we design an asymmetric hetero-trimetallic single-atom catalyst with ZnN 3 CoN FeN 2 S active catalytic sites to enhance the oxygen reaction performances.

Язык: Английский

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Sulfur‐Bridged Asymmetric CuNi Bimetallic Atom Sites for CO₂ Reduction with High Efficiency

Advanced Materials, Год журнала: 2024, Номер 36(33)

Опубликована: Июнь 25, 2024

Abstract Double‐atom catalysts (DACs) with asymmetric coordination are crucial for enhancing the benefits of electrochemical carbon dioxide reduction and advancing sustainable development, however, rational design DACs is still challenging. Herein, this work synthesizes atomically dispersed novel sulfur‐bridged Cu‐S‐Ni sites (named Cu‐S‐Ni/SNC), utilizing biomass wool keratin as precursor. The plentiful disulfide bonds in overcome limitations traditional gas‐phase S ligand etching process enable one‐step formation S‐bridged sites. X‐ray absorption spectroscopy (XAS) confirms existence bimetallic N 2 Cu‐S‐NiN moiety. In H‐cell, Cu‐S‐Ni/SNC shows high CO Faraday efficiency 98.1% at −0.65 V versus RHE. Benefiting from charge tuning effect between metal site bridged sulfur atoms, a large current density 550 mA cm −2 can be achieved −1.00 flow cell. Additionally, situ XAS, attenuated total reflection surface‐enhanced infrared (ATR‐SEIRAS), functional theory (DFT) calculations show Cu main adsorption dual‐regulated by Ni which enhances activation accelerates *COOH intermediates. This kind atom may open new pathways precision preparation performance regulation atomic materials toward energy applications.

Язык: Английский

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Spin effect in dual-atom catalysts for electrocatalysis

Chemical Science, Год журнала: 2024, Номер 15(36), С. 14585 - 14607

Опубликована: Янв. 1, 2024

The development of high-efficiency atomic-level catalysts for energy-conversion and -storage technologies is crucial to address energy shortages. spin states diatomic (DACs) are closely tied their catalytic activity. Adjusting the DACs' active centers can directly modify occupancy d-orbitals, thereby influencing bonding strength between metal sites intermediates as well transfer during electro reactions. Herein, we discuss various techniques characterizing atomic strategies modulating center states. Next, outline recent progress in study effects DACs oxygen reduction reaction (ORR), evolution (OER), hydrogen (HER), electrocatalytic nitrogen/nitrate (eNRR/NO

Язык: Английский

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Precise synthesis of dual atom sites for electrocatalysis

Nano Research, Год журнала: 2024, Номер unknown

Опубликована: Сен. 17, 2024

Язык: Английский

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Multi‐Enzyme Mimetic MoCu Dual‐Atom Nanozyme Triggering Oxidative Stress Cascade Amplification for High‐Efficiency Synergistic Cancer Therapy

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Авг. 22, 2024

Single-atom nanozymes (SAzymes) with ultrahigh atom utilization efficiency have been extensively applied in reactive oxygen species (ROS)-mediated cancer therapy. However, the high energy barriers of reaction intermediates on single-atom sites and overexpressed antioxidants tumor microenvironment restrict amplification oxidative stress, resulting unsatisfactory therapeutic efficacy. Herein, we report a multi-enzyme mimetic MoCu dual-atom nanozyme (MoCu DAzyme) various catalytic active sites, which exhibits peroxidase, oxidase, glutathione (GSH) nicotinamide adenine dinucleotide phosphate (NADPH) oxidase mimicking activities. Compared Mo SAzyme, introduction Cu atoms, formation synergetic effects among enhance substrate adsorption reduce barrier, thereby endowing DAzyme stronger Benefiting from above enzyme-like activities, can not only generate multiple ROS, but also deplete GSH block its regeneration to trigger cascade stress. Additionally, strong optical absorption near-infrared II bio-window endows remarkable photothermal conversion performance. Consequently, achieves high-efficiency synergistic treatment incorporating collaborative therapy This work will advance applications DAzymes provide valuable insights for nanocatalytic

Язык: Английский

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Precisely designing asymmetrical selenium-based dual-atom sites for efficient oxygen reduction

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 7, 2025

Owing to their synergistic interactions, dual-atom catalysts (DACs) with well-defined active sites are attracting increasing attention. However, more experimental research and theoretical investigations needed further construct explicit understand the synergy that facilitates multistep catalytic reactions. Herein, we precisely design a series of asymmetric selenium-based comprise heteronuclear SeN2–MN2 (M = Fe, Mn, Co, Ni, Cu, Mo, etc.) for efficient oxygen reduction reaction (ORR). Spectroscopic characterisation calculations revealed selenium atoms can efficiently polarise charge distribution other metal through short-range regulation. In addition, compared Se or Fe single-atom sites, SeFe facilitate in conversion energy barrier from *O *OH via coadsorption intermediates. Among these designed catalysts, selenium-iron achieves superior alkaline ORR performance, half-wave potential 0.926 V vs. reversible hydrogen electrode. SeN2–FeN2-based Zn–air battery has high specific capacity (764.8 mAh g−1) maximum power density (287.2 mW cm−2). This work may provide good perspective designing DACs improve efficiency. Dual-atom precise gaining attention, but studies optimise construction synergy. Here authors report dual- atom reaction.

Язык: Английский

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Enigma of Sustainable CO₂ Conversion to Renewable Fuels and Chemicals Through Photocatalysis, Electrocatalysis, and Photoelectrocatalysis: Design Strategies and Atomic Level Insights

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Growing global population, escalating energy consumption, and climate change threaten future security. Fossil fuel combustion, primarily coal, oil, natural gas, exacerbates the greenhouse effect driving warming through CO

Язык: Английский

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Sulfur-doping tunes p-d orbital coupling over asymmetric Zn-Sn dual-atom for boosting CO2 electroreduction to formate

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 5, 2025

The interaction of p-d orbitals at bimetallic sites plays a crucial role in determining the catalytic reactivity, which facilitates modulation charges and enhances efficiency CO2 electroreduction process. Here, we show ligand co-etching approach to create asymmetric Zn-Sn dual-atom (DASs) within metal-organic framework (MOF)-derived yolk-shell carbon frameworks (named Zn1Sn1/SNC). DASs comprise one Sn center (p-block) partially doped with sulfur Zn (d-block) N coordination, facilitating coupling between dimer. N-Zn-Sn-S/N arrangement displays an distribution atoms, leading stable adsorption configuration HCOO* intermediates. In H-type cell, Zn1Sn1/SNC exhibits impressive formate Faraday 94.6% -0.84 V. flow electronic architecture high accessibility, current density -315.2 mA cm-2 -0.90 Theoretical calculations ideal affinity lower reduction barrier, thus improve overall reduction.

Язык: Английский

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Rational design of “ship-in-a-bottle” evaporator with integrated solar evaporation and photocatalytic degradation for sustainable water treatment

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159995 - 159995

Опубликована: Янв. 1, 2025

Язык: Английский

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