Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Язык: Английский

Manipulating Interfacial Water Via Metallic Pt₁Co₆ Sites on Self‐Adaptive Metal Phosphides to Enhance Water Electrolysis

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

Abstract Metallizing active sites to control the structural and kinetic dissociation of water at catalyst–electrolyte interface, along with elucidating its mechanism under operating conditions, is a pivotal innovation for hydrogen evolution reaction (HER). Here, design singly dispersed Pt–Co in fully metallic state on nanoporous Co 2 P, tailored HER, introduced. An anion‐exchange‐membrane electrolyzer equipped this catalyst can achieve industrial current densities 1.0 2.0 A cm −2 1.71 1.85 V, respectively. It revealed that undergo self‐adaptive distortion which form Pt 1 6 configuration strongly negative charge optimizes reactant binding reorganizes interfacial structure, resulting an improved concentration potassium (K + ) ions closest ion plane. The K interact cooperatively H O (K·H O), strengthens Pt–H interaction facilitates polarization H─OH bond, leading HER activity. This study not only propels advancement cathodic catalysts electrolysis but also delineates metallization strategy interface principle, thereby enhancing electrocatalytic rates.

Язык: Английский

Synergistic catalysis of CoN sites and Co nanoparticles for efficient CO -free hydrogen production from ammonia decomposition

Fuel, Год журнала: 2025, Номер 396, С. 135311 - 135311

Опубликована: Апрель 10, 2025

Язык: Английский