Lattice Strain with Stabilized Oxygen Vacancies Boosts Ceria for Robust Alkaline Hydrogen Evolution Outperforming Benchmark Pt

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

Опубликована: Июнь 12, 2024

Abstract Earth‐abundant metal oxides are usually considered as stable but catalytically inert toward hydrogen evolution reaction (HER) due to their unfavorable intermediate adsorption performance. Herein, a heavy rare earth (Y) and transition (Co) dual‐doping induced lattice strain oxygen vacancy stabilization strategy is proposed boost CeO 2 robust alkaline HER. The compression increased (O v ) concentration in synergistically improve the water dissociation on O sites sequential at activated ‐neighboring sites, leading significantly enhanced HER kinetics. Meanwhile, Y doping offers effect by its stronger Y─O bonding over Ce─O, which endows catalyst with excellent stability. Y,Co‐CeO electrocatalyst exhibits an ultra‐low overpotential (27 mV 10 mA cm −2 Tafel slope (48 dec −1 ), outperforming benchmark Pt electrocatalyst. Moreover, anion exchange membrane electrolyzer incorporated achieves stability of 500 h under 600 . This synergistic sheds new light rational development efficient oxide‐based electrocatalysts.

Язык: Английский

---

Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(7), С. 3844 - 3878

Опубликована: Янв. 1, 2024

This review provides a systematic summary of the nanostructure engineering Ru-modified electrocatalysts for electrocatalytic water splitting. These regulation strategies, such as single atom sites, doping, alloying and interfacial are summarized in detail.

Язык: Английский

---

Locally Strained 2D Materials: Preparation, Properties, and Applications

Advanced Materials, Год журнала: 2024, Номер 36(23)

Опубликована: Фев. 10, 2024

Abstract 2D materials are promising for strain engineering due to their atomic thickness and exceptional mechanical properties. In particular, non‐uniform localized can be induced in by generating out‐of‐plane deformations, resulting novel phenomena properties, as witnessed recent years. Therefore, the locally strained of great value both fundamental studies practical applications. This review discusses techniques introducing local strains materials, feasibility, advantages, challenges. Then, unique effects properties that arise from explored. The representative applications based on illustrated, including memristor, single photon emitter, photodetector. Finally, concluding remarks challenges opportunities emerging field provided.

Язык: Английский

---

From Charge to Spin: An In‐Depth Exploration of Electron Transfer in Energy Electrocatalysis

Advanced Materials, Год журнала: 2024, Номер 36(37)

Опубликована: Март 14, 2024

Abstract Catalytic materials play crucial roles in various energy‐related processes, ranging from large‐scale chemical production to advancements renewable energy technologies. Despite a century of dedicated research, major enduring challenges associated with enhancing catalyst efficiency and durability, particularly green electrochemical reactions, remain. Focusing only on either the crystal structure or electronic is deemed insufficient break linear scaling relationship (LSR), which golden rule for design advanced catalysts. The discourse this review intricately outlines essence heterogeneous catalysis reactions by highlighting vital played electron properties. physical properties charge spin that govern efficiencies are analyzed. Emphasis placed pronounced influence external fields perturbing LSR, underscoring role plays advancing high‐performance design. culminates proffering insights into potential applications catalysis, concluding discussion extant inherent limitations.

Язык: Английский

---

Heterostructured electrocatalysts for the oxygen evolution reaction

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(30), С. 18832 - 18865

Опубликована: Янв. 1, 2024

This review focuses mainly on the overall facilitating effect of heterostructures OER process. The fabrication heterostructured electrocatalysts and relationship between their structures electrocatalytic properties are discussed.

Язык: Английский

---