Electrocatalytic upgrading of nitrogenous wastes into value-added chemicals: A review

Materials Today, Год журнала: 2024, Номер 73, С. 208 - 259

Опубликована: Фев. 7, 2024

Язык: Английский

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Atomic-Scale Tailoring C–N Coupling Sites for Efficient Acetamide Electrosynthesis over Cu-Anchored Boron Nitride Nanosheets

ACS Nano, Год журнала: 2024, Номер unknown

Опубликована: Дек. 4, 2024

Electrochemical conversion of carbon and nitrogen sources into valuable chemicals provides a promising strategy for mitigating CO

Язык: Английский

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Electronic Structure Design of Transition Metal-Based Catalysts for Electrochemical Carbon Dioxide Reduction

ACS Nano, Год журнала: 2024, Номер 18(14), С. 9823 - 9851

Опубликована: Март 28, 2024

With the increasingly serious greenhouse effect, electrochemical carbon dioxide reduction reaction (CO2RR) has garnered widespread attention as it is capable of leveraging renewable energy to convert CO2 into value-added chemicals and fuels. However, performance CO2RR can hardly meet expectations because diverse intermediates complicated processes, necessitating exploitation highly efficient catalysts. In recent years, with advanced characterization technologies theoretical simulations, exploration catalytic mechanisms gradually deepened electronic structure catalysts their interactions intermediates, which serve a bridge facilitate deeper comprehension structure-performance relationships. Transition metal-based (TMCs), extensively applied in CO2RR, demonstrate substantial potential for further modulation, given abundance d electrons. Herein, we discuss representative feasible strategies modulate catalysts, including doping, vacancy, alloying, heterostructure, strain, phase engineering. These approaches profoundly alter inherent properties TMCs interaction thereby greatly affecting rate pathway CO2RR. It believed that rational design modulation fundamentally provide viable directions development toward conversion many other small molecules.

Язык: Английский

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Fundamentals and Rational Design of Heterogeneous C‐N Coupling Electrocatalysts for Urea Synthesis at Ambient Conditions

Advanced Energy Materials, Год журнала: 2024, Номер 14(28)

Опубликована: Янв. 28, 2024

Abstract Electrocatalytic C‐N coupling reaction is regarded as a promising strategy for achieving clean and sustainable urea production by coreducing CO 2 nitrogen species, thus contributing to carbon neutrality the artificial cycle. However, restricted sluggish adsorption of reactants, competitive side reactions, multistep pathways, electrochemical suffers from low yield rate selectivity so far. In order comprehensively improve synthesis performance, it crucial develop highly efficient catalysts coupling. this article, catalyst‐designing strategies, mechanisms, fundamental research methods are reviewed. For coreduction different several prevailing mechanisms discussed. With aim establishing standard system, fundamentals electrocatalytic introduced. The most important strategies boosting discussed, including heteroatom doping, vacancy engineering, crystal facet regulation, atom‐scale modulation, alloying heterostructure construction. Finally, challenges perspectives proposed future industrial applications

Язык: Английский

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Promoting Electroreduction of CO₂ and NO₃⁻ to Urea via Tandem Catalysis of Zn Single Atoms and In₂O_3‐x

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 16, 2024

Abstract Urea electrosynthesis from co‐electrolysis of CO 2 and NO 3 − (UECN) offers an innovative route for converting waste /NO into valuable urea. Herein, Zn single atoms anchored on oxygen vacancy (OV)‐rich In O 3‐x (Zn 1 /In ) are developed as a highly active selective UECN catalyst, delivering the highest urea yield rate 41.6 mmol h −1 g urea‐Faradaic efficiency 55.8% at −0.7 V in flow cell, superior to most previously reported catalysts. situ spectroscopic measurements theoretical calculations unveil synergy In/Zn sites OVs promoting process via tandem catalysis mechanism, where ‐OV site activates form * NH while In‐OV CO. The formed spontaneously migrates nearby then couples with generate CONH which is ultimately converted

Язык: Английский

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Green urea production for sustainable agriculture

Joule, Год журнала: 2024, Номер 8(5), С. 1224 - 1238

Опубликована: Март 15, 2024

Язык: Английский

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The Tandem Nitrate and CO₂ Reduction for Urea Electrosynthesis: Role of Surface N‐Intermediates in CO₂ Capture and Activation

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(24)

Опубликована: Апрель 8, 2024

Abstract Electrochemical reduction of CO 2 and nitrate offers a promising avenue to produce valuable chemicals through the using greenhouse gas nitrogen‐containing wastewater. However, generally proposed reaction pathway concurrent for urea synthesis requires catalysts be both efficient in reduction, thus narrowing selection range suitable catalysts. Herein, we demonstrate distinct mechanism synthesis, tandem NO 3 − which surface amino species generated by play role capture free subsequent initiate its activation. When TiO electrocatalyst derived from MIL‐125‐NH , it intrinsically exhibits low activity aqueous however, presence this catalyst achieves an excellent yield rate 43.37 mmol ⋅ g −1 h Faradaic efficiency 48.88 % at −0.9 V vs. RHE flow cell. Even level 15 %, remains robust 42.33 %. The procedure was further confirmed situ spectroscopies theoretical calculations. This research provides new insights into design electrocatalysts synthesis.

Язык: Английский

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An oxygen-coordinated cobalt single-atom electrocatalyst boosting urea and urea peroxide production

Energy & Environmental Science, Год журнала: 2024, Номер 17(5), С. 1950 - 1960

Опубликована: Янв. 1, 2024

An oxygen-coordinated cobalt single-atom catalyst was successfully fabricated, exhibiting exceptional electrocatalytic activity toward urea and H 2 O production. Subsequently, the value-added peroxide efficiently synthesized.

Язык: Английский

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Electrocatalytic C−N Couplings at Cathode and Anode

Advanced Energy Materials, Год журнала: 2024, Номер 14(28)

Опубликована: Фев. 21, 2024

Abstract Electrocatalytic C−N couplings are promising alternatives to construct bonds and synthesize vital chemicals, including amine, amide, amino acid, oxime, imine, nitrile, under ambient conditions. In recent years, the electrocatalytic coupling has attracted a wide range of research interest achieved considerable developments. Here, is systematically reviewed aiming at reductive cathode oxidative anode. cathodic part, reaction systems, corresponding design principles electrocatalysts for different mechanism studies from experimental theoretical aspects, application‐oriented devices summarized. Anodic offers potential approach replace conventional energy‐demand synthesis protocols, an indispensable part green controllable construction unsaturated C = N C≡N bonds. According principle that electron transfer crucial point in anodic coupling, reactions sorted out based on direct indirect paths, respectively. Finally, challenges outlooks this field proposed. appealing topic electrochemistry possesses infinite possibilities future.

Язык: Английский

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From Single Metals to High‐Entropy Alloys: How Machine Learning Accelerates the Development of Metal Electrocatalysts

Advanced Functional Materials, Год журнала: 2024, Номер 34(34)

Опубликована: Апрель 25, 2024

Abstract The rapid advancement of high‐performance computing and artificial intelligence technology has opened up novel avenues for the development various metal electrocatalysts. In particular, dilute high‐entropy alloys have garnered significant attention owing to their unique electronic spatial structures, as well exceptional electrocatalytic performance. Commencing with exploration single‐atom alloy catalysts, latest advancements in machine learning (ML) techniques are presented efficient screening a broad spectrum spaces. Subsequently, review delves into prevailing trend research, focusing specifically on rare‐metal electrocatalysts, offers an overview progress outcomes achieved through application ML these domains. Finally, highlighted promising category electrocatalysts underscore importance potential applications addressing complex challenging research issues underscored.

Язык: Английский

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