Alloy-type Mo single-atom catalyst enhancing hydrogen storage performance of MgH2

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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Ultrasonic-assisted strategy to enhance electrocatalytic performance of CoNi N-doped carbon catalyst in alkaline oxygen reduction reaction and zinc-air batteries

Surfaces and Interfaces, Год журнала: 2024, Номер unknown, С. 105443 - 105443

Опубликована: Ноя. 1, 2024

Язык: Английский

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Highly dispersed ternary metal FeZnCe with nitrogen/oxygen co-doped carbon materials for efficient oxygen electroreduction

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 155487 - 155487

Опубликована: Сен. 1, 2024

Язык: Английский

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Metal-organic framework derived Co@N/C with enhanced oxygen reduction reaction in direct borohydride fuel cells

Chemical Engineering Science, Год журнала: 2024, Номер unknown, С. 120953 - 120953

Опубликована: Ноя. 1, 2024

Язык: Английский

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Tailoring Oxygen Reduction Reaction on M–N–C Catalysts via Axial Coordination Engineering

Small, Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

Abstract The development of fuel cells and metal‐air batteries is an important link in realizing a sustainable energy supply green environment for the future. Oxygen reduction reaction (ORR) core such conversion devices. M–N–C catalysts exhibit encouraging ORR catalytic activity are most promising candidates replacing Pt/C. electrocatalytic performance intimately related to specific metal species coordination central atom. Axial engineering presents avenue highly active has seen considerable progress over past decade. Nevertheless, accurate control electronic structure at atomic scale poses big challenge. Herein, diverse axial ligands, characterization techniques, modulation mechanisms encompassed discussed. Furthermore, some pressing matters be solved challenges that deserve explored investigated future proposed.

Язык: Английский

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Functional additives for proton exchange membrane fuel cells

EnergyChem, Год журнала: 2025, Номер unknown, С. 100144 - 100144

Опубликована: Янв. 1, 2025

Язык: Английский

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Derived S/N/Co co-doped porous carbon as superior oxygen reduction reaction catalysts

Diamond and Related Materials, Год журнала: 2025, Номер unknown, С. 112058 - 112058

Опубликована: Янв. 1, 2025

Язык: Английский

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Harnessing Synergistic Cooperation of Neighboring Active Motifs in Heterogeneous Catalysts for Enhanced Catalytic Performance

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 12, 2025

Abstract Understanding the intricate interplay between catalytically active motifs in heterogeneous catalysts has long posed a significant challenge design of highly and selective reactions. Drawing inspiration from biological enzymes homogeneous catalysts, synergistic cooperation neighboring emerged as crucial factor achieving effective catalysis. This control is often observed natural systems through ligand coordination. The interaction especially vital reactions involving tandem or cascade steps, where distinct provide different functionalities to enable co‐activation reaction substrate(s). Situated within 3D spatial domain, these can shape favorable catalytic landscapes by modulating electronic geometric characteristics, thereby stabilizing specific intermediate transition state species reaction. In this review, we aim explore diverse array latest that capitalize on cooperativity motifs. We will delve into how such interactions be utilized engineer more landscapes, ultimately resulting modulation reactivities.

Язык: Английский

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Boosting the Oxygen Reduction Performance of Fe–N–C Catalyst Using Zeolite as an Oxygen Reservoir

Transactions of Tianjin University, Год журнала: 2024, Номер 30(5), С. 428 - 435

Опубликована: Авг. 8, 2024

Abstract Non-precious metal electrocatalysts (such as Fe–N–C materials) for the oxygen (O 2 ) reduction reaction demand a high catalyst loading in fuel cell devices to achieve workable performance. However, extremely low solubility of O water creates severe mass transport resistance thick layer catalysts. Here, we introduce silicalite-1 nanocrystals with hydrophobic cavities sustainable reservoirs overcome issue The extra supply adjacent catalysts significantly alleviated negative effects resistance. hybrid (Fe–N–C@silicalite-1) achieved higher limiting current density than half-cell test. In H –O and –air proton exchange membrane cells, Fe–N–C@silicalite-1 exhibited 16.3% 20.2% increase peak power compared Fe–N–C, respectively. -concentrating additive provides an effective approach improving imposed by water.

Язык: Английский

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Recent Developments of Metal-N-C Catalysts Toward Oxygen Reduction Reaction for Anion Exchange Membrane Fuel Cell: A Review

Journal of Electrochemical Science and Technology, Год журнала: 2024, Номер 15(2), С. 207 - 219

Опубликована: Март 14, 2024

<p>Metal-N-C (MNC) catalysts have been anticipated as promising candidates for oxygen reduction reaction (ORR) to achieve low-cost polymer electrolyte membrane fuel cells. The structure of the M-N_x moiety enabled a high catalytic activity that was not observed in previously reported transition metal nanoparticle-based catalysts. Despite progress non-precious catalysts, low density active sites MNCs, which resulted lower single-cell performance than Pt/C, needs be resolved practical application. This review focused on recent studies and methodologies aimed overcome these limitations develop an inexpensive catalyst with excellent durability alkaline environment. It included possibility metals materials ORR starting from Co phthalocyanine development (e.g., metal-coordinated N-containing polymers, metal-organic frameworks) form sites, moieties. Thereafter, motivation, procedures, latest research design morphology improved mass transport ability site engineering allowed promoted kinetics were discussed.</p>

Язык: Английский

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