Hierarchically porous, N-defect enriched C-nanosheets boost the H2S selective oxidation to elemental sulfur

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 343, С. 123505 - 123505

Опубликована: Ноя. 11, 2023

Язык: Английский

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Latest progresses of Ru-based catalysts for alkaline hydrogen oxidation reaction: From mechanism to application

Applied Catalysis A General, Год журнала: 2024, Номер 676, С. 119684 - 119684

Опубликована: Март 13, 2024

Язык: Английский

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Pt single atoms coupled with Ru nanoclusters enable robust hydrogen oxidation for high-performance anion exchange membrane fuel cells

Nano Research, Год журнала: 2024, Номер 17(7), С. 6147 - 6156

Опубликована: Март 23, 2024

Язык: Английский

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Constructing CO-immune water dissociation sites around Pt to achieve stable operation in high CO concentration environment

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Сен. 16, 2024

The serious problem of carbon monoxide (CO) poisoning on the surface Pt-based catalysts has long constrained commercialization proton exchange membrane fuel cells (PEMFCs). Regeneration Pt sites by maintaining CO scavenging ability through precise construction and interface structure catalyst is key to obtaining high-performance CO-resistant catalysts. Here, we used molybdenum carbide (MoC

Язык: Английский

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Revealing the role of a bridging oxygen in a carbon shell coated Ni interface for enhanced alkaline hydrogen oxidation reaction

Chemical Science, Год журнала: 2024, Номер 15(15), С. 5633 - 5641

Опубликована: Янв. 1, 2024

Boron doped carbon coated nickel shows a remarkable activity in alkaline hydrogen oxidation. Theoretical and experimental results reveal that the Ni–O–C(B) interface catalyst can optimize OHBE of Ni enhance its HOR performance.

Язык: Английский

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Recent Advances in Revealing the Electrocatalytic Mechanism for Hydrogen Energy Conversion System

Small, Год журнала: 2024, Номер 20(45)

Опубликована: Июль 29, 2024

In light of the intensifying global energy crisis and mounting demand for environmental protection, it is vital importance to develop advanced hydrogen conversion systems. Electrolysis cells production fuel cell devices utilization are indispensable in conversion. As one electrolysis cells, water splitting involves two electrochemical reactions, evolution reaction oxygen reaction. And reduction coupled with oxidation reaction, represent core electrocatalytic reactions devices. However, inherent complexity lack a clear understanding structure-performance relationship these have posed significant challenges advancement research this field. work, recent development revealing mechanism systems reviewed, including situ characterization theoretical calculation. First, working principles applications operando measurements unveiling systematically introduced. Then application calculations design catalysts investigation discussed. Furthermore, opportunities also summarized discussed paving

Язык: Английский

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Charge distribution modulation of hollow flower-like tungsten doped nickel nitride for alkaline hydrogen oxidation

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150272 - 150272

Опубликована: Март 8, 2024

Язык: Английский

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Manipulating surface reconstruction and lattice oxygen mechanism of nickel (oxy)hydroxide by defect engineering for industrial electrocatalytic water oxidation

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156977 - 156977

Опубликована: Окт. 1, 2024

Язык: Английский

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Recent Progress in Strategies for Ruthenium-Based Electrocatalysts for Alkaline Hydrogen Evolution and Oxidation Reactions

Energy & Fuels, Год журнала: 2023, Номер 37(23), С. 17765 - 17781

Опубликована: Окт. 24, 2023

To establish clean and environmentally friendly energy systems, hydrogen-based electrochemical storage conversion devices must be developed. Fuel cells electrolyzers based on the anion-exchange membrane have attracted a lot of interest owing to their utilization as efficient earth-abundant catalysts for oxygen electrode reactions. However, sluggish hydrogen reactions under alkaline conditions still rely expensive platinum group metals electrocatalysts, hindering widespread commercialization. For evolution reaction (HER) oxidation (HOR), ruthenium (Ru) has emerged possible replacement (Pt) in conditions. This is explained by its adequate hydrogen-binding oxyphilic property, which enables it achieve low potentials while being more cost-effective than Pt. Therefore, comprehensive analysis understanding HER HOR mechanisms, along with development rational designs Ru-based desirable activity stability, been performed devices. review provides detailed introduction discussion fundamental mechanisms involved HER/HOR. Additionally, summary effectiveness four advanced strategies (composition engineering, phase support atomic-scale engineering) aimed at enhancing performance electrocatalysts. Finally, direct future research this area, obstacles perspectives are underlined.

Язык: Английский

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Superhydrophilic Dendritic FeP/Cu₃P Electrocatalyst for Urea Splitting via the Intramolecular Mechanism

Inorganic Chemistry, Год журнала: 2024, Номер 63(9), С. 4204 - 4213

Опубликована: Фев. 22, 2024

The electrocatalytic overall urea splitting can achieve the dual goals of treatment and hydrogen energy acquisition. Herein, we exploited principle precipitation dissolution equilibrium to obtain bimetallic phosphide FeP/Cu3P/CF for simultaneous oxidation reduction water comprehensively reveal inherent molecular thermodynamic mechanisms on surface catalysts. excellent electrochemical performance be derived from super affinity synergistic effect. Especially, theoretical calculation unveils that effect between FeP Cu3P lower activation required electrooxidation, thereby promoting splitting. In situ differential mass spectrometry (in DEMS) measurements further demonstrated proceeded according intramolecular mechanism. This work has laid foundation constructing highly efficient superhydrophilic bifunctional electrocatalysts.

Язык: Английский

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