Linking the Dynamic Chemical State of Catalysts with the Product Profile of Electrocatalytic CO₂ Reduction

Angewandte Chemie International Edition, Год журнала: 2021, Номер 60(32), С. 17254 - 17267

Опубликована: Март 8, 2021

Abstract The promoted activity and enhanced selectivity of electrocatalysts is commonly ascribed to specific structural features such as surface facets, morphology, atomic defects. However, unraveling the factors that really govern direct electrochemical reduction CO 2 (CO RR) still very challenging since state dynamic difficult predict under working conditions. Moreover, theoretical predictions from viewpoint thermodynamics alone often fail specify actual configuration a catalyst for RR process. Herein, we re‐survey recent studies with emphasis on revealing chemical Cu sites conditions extracted by in situ/operando characterizations, further validate critical link between product profile RR. This point view provides generalizable concept chemical‐state‐driven offers an inspiration both fundamental understanding efficient design.

Язык: Английский

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Recent advances in proton exchange membrane water electrolysis

Chemical Society Reviews, Год журнала: 2023, Номер 52(16), С. 5652 - 5683

Опубликована: Янв. 1, 2023

This review scrutinizes recent progress in PEMWE system including mechanisms, the correlation among structure-composition–performance, manufacturing, design and operation protocols. The challenges perspectives for applications are proposed.

Язык: Английский

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Water electrolysis

Nature Reviews Methods Primers, Год журнала: 2022, Номер 2(1)

Опубликована: Окт. 27, 2022

Язык: Английский

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Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting

Chemical Reviews, Год журнала: 2024, Номер 124(7), С. 3694 - 3812

Опубликована: Март 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Язык: Английский

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Machine learning for a sustainable energy future

Nature Reviews Materials, Год журнала: 2022, Номер 8(3), С. 202 - 215

Опубликована: Окт. 18, 2022

Язык: Английский

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Structure Sensitivity in Single-Atom Catalysis toward CO₂ Electroreduction

ACS Energy Letters, Год журнала: 2021, Номер 6(2), С. 713 - 727

Опубликована: Янв. 28, 2021

Owing to unique electronic structure and high atom utilization, single-atom catalysts (SACs) have displayed unprecedented activity selectivity toward a wide range of catalytic reactions, including electrocatalytic CO2 reduction reaction (CO2RR), which holds great promise in reducing carbon emission storing renewable energy. The CO2RR is closely related structural characteristics specific SACs. Here we discuss the fundamental understanding sensitivity catalysis using selected examples. influences speciation metal centers coordination environments on performances are summarized. importance situ operando characterizations reveal dynamic evolution under conditions identify active sites SACs highlighted. mechanistic role tandem also discussed. We illustrate existing challenges research opportunities investigating structure–performance correlations for CO2RR.

Язык: Английский

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Electrochemical reduction of carbon dioxide to multicarbon (C₂₊) products: challenges and perspectives

Energy & Environmental Science, Год журнала: 2023, Номер 16(11), С. 4714 - 4758

Опубликована: Янв. 1, 2023

This review analyzes advanced catalysts and C 2+ synthesis mechanisms based on theoretical explorations in situ / operando characterizations. Triphasic interface optimization is discussed for the potential of industry-compatible stability.

Язык: Английский

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Electrochemical Approaches toward CO₂ Capture and Concentration

ACS Catalysis, Год журнала: 2020, Номер 10(21), С. 13058 - 13074

Опубликована: Окт. 26, 2020

Carbon capture and concentration of low partial pressure CO2 in air flue gas is a key step carbon abatement strategies. Traditional methods employ temperature or swings; however, electrochemical swings, which an applied potential modulates nucleophilicity, are also possible to mediate the release CO2. In contrast breadth reduction research, electrochemically mediated emerging field. Although some aspects reminiscent those reduction, like local pH gradients (bi)carbonate equilibria, ultimately poses its own unique challenges that will benefit from insights intercalative batteries, redox flow biomimetic/-inspired design, among other fields. After introduction current chemical strategies, this Review highlights promising enable concentration; specifically discussed organic redox, transition metal swings. It closes with outlook discussion future research for capture.

Язык: Английский

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Interfacial engineering of heterogeneous catalysts for electrocatalysis

Materials Today, Год журнала: 2021, Номер 48, С. 115 - 134

Опубликована: Март 18, 2021

Язык: Английский

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Dynamics and control of active sites in hierarchically nanostructured cobalt phosphide/chalcogenide-based electrocatalysts for water splitting

Energy & Environmental Science, Год журнала: 2022, Номер 15(2), С. 727 - 739

Опубликована: Янв. 1, 2022

The rational design of efficient electrocatalysts for industrial water splitting is essential to generate sustainable hydrogen fuel. However, a comprehensive understanding the complex catalytic mechanisms under harsh reaction conditions remains major challenge. We apply self-templated strategy introduce hierarchically nanostructured "all-surface" Fe-doped cobalt phosphide nanoboxes (Co@CoFe-P NBs) as alternative industrial-scale applications.

Язык: Английский

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