Ultrathin and Conformal Depletion Layer of Core/Shell Heterojunction Enables Efficient and Stable Acidic Water Oxidation

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(39), С. 26897 - 26908

Опубликована: Сен. 23, 2024

Ru-based electrocatalysts hold great promise for developing affordable proton exchange membrane (PEM) electrolyzers. However, the harsh acidic oxidative environment of oxygen evolution reaction (OER) often causes undesirable overoxidation Ru active sites and subsequent serious activity loss. Here, we present an ultrathin conformal depletion layer attached to Schottky heterojunction core/shell RuCo/RuCoO

Язык: Английский

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Noble-Metal-Free Metal Oxides for Catalyzing Acidic Oxygen and Hydrogen Evolution Reactions: Recent Developments and Future Perspectives

Energy & Fuels, Год журнала: 2024, Номер 38(14), С. 12387 - 12408

Опубликована: Апрель 11, 2024

Proton exchange membrane (PEM) water electrolysis has emerged as a highly promising technology for sustainable hydrogen (H2) production, but its widespread application relies heavily on the development of high-performance and cost-effective evolution reaction (HER) oxygen (OER) electrocatalysts. Currently, noble-metal-based materials (such Pt Ir/Ru oxides) serve benchmark electrocatalysts HER OER in acidic environments, their high cost limited availability pose major challenges toward industrialization. Low-cost noble-metal-free metal oxides are an important class functional with rich compositions structures, offering flexible electronic crystal structures tunable physical chemical properties. In this Review, we present comprehensive timely summary remarkable progress achieved field catalyzing OER. First, provide brief description fundamental concepts media, including mechanisms, computational activity descriptors, experimental parameters that utilized evaluation catalytic performance. Second, overview is provided covering various types media reported so far (e.g., simple transition oxides, spinel rutile antimonate perovskite specially structured mixed-metal-oxide composites), focus designed strategies enhancing performance establishing correlations between properties activity. Lastly, future research directions regarding summarized discussed.

Язык: Английский

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Regulating the electronic state of SnO2@NiFe-LDH heterojunction: Activating lattice oxygen for efficient oxygen evolution reaction

Fuel, Год журнала: 2024, Номер 370, С. 131762 - 131762

Опубликована: Май 4, 2024

Язык: Английский

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Scaling Up Stability: Navigating from Lab Insights to Robust Oxygen Evolution Electrocatalysts for Industrial Water Electrolysis

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 29, 2024

Abstract In the pursuit of sustainable hydrogen production via water electrolysis, paramount importance electrocatalyst stability emerges as a defining factor for long‐term industrial viability. A thorough understanding and enhancement not only ensure extended catalyst lifetimes but also pave way consistent efficient generation. This review focuses on pivotal role in determining practical viability oxygen evolution electrocatalysts (OECs) large‐scale applications electrolysis production. The paper explores over initial activity, citing examples hypothetical scenarios. First, figures merits evaluation are explained along with available benchmarking protocols evaluation. Further, text delves into various strategies that can enhance which include self‐healing/regeneration pathway, reaction (OER) mechanism optimization to achieve highly stable OER stabilization active metals atoms within inhibit dissolution forward application. interplay stability, cost is suit application electrocatalyst. Lastly, it outlines challenges, prospects, future directions, presenting guide advancing OECs generation landscape.

Язык: Английский

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Tailoring the electron redistribution of RuO2 by constructing a Ru-O-La asymmetric configuration for efficient acidic oxygen evolution

eScience, Год журнала: 2024, Номер 5(1), С. 100307 - 100307

Опубликована: Авг. 28, 2024

Язык: Английский

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