Advances in the Electrocatalytic Hydrogen Evolution Reaction by Metal Nanoclusters‐based Materials

Small, Journal Year: 2022, Volume and Issue: 18(52)

Published: Oct. 26, 2022

Abstract With the development of renewable energy systems, clean hydrogen is burgeoning as an optimal alternative to fossil fuels, in which its application promising retarding global and environmental crisis. The evolution reaction (HER), capable producing high‐purity rapidly electrocatalytic water splitting, has received much attention. Abundant research about HER been done, focusing on advanced electrocatalyst design with high efficiency robust stability. As potential catalysts, metal nanoclusters (MNCs) have studied extensively. They are composed several a hundred atoms, sizes being comparable Fermi wavelength electrons, that is, < 2.0 nm. Different from atoms/nanoparticles, they exhibit unique catalytic properties due their quantum size effect low‐coordination environment. In this review, activity‐enhancing approaches MNCs applied electrocatalysis mainly summarized. Furthermore, recent progress classified different stabilization strategies, freestanding MNCs, organic, carbon supports, introduced. Finally, current challenges deficiencies these for prospected.

Language: Английский

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Single atomic cerium sites anchored on nitrogen-doped hollow carbon spheres for highly selective electroreduction of nitric oxide to ammonia

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 638, P. 650 - 657

Published: Feb. 9, 2023

Language: Английский

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Heterogeneous Ni-MoN nanosheet-assembled microspheres for urea-assisted hydrogen production

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 634, P. 730 - 736

Published: Dec. 17, 2022

Language: Английский

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Electrocatalytic nitrate-to-ammonia conversion on CoO/CuO nanoarrays using Zn–nitrate batteries

Nanoscale, Journal Year: 2023, Volume and Issue: 15(48), P. 19577 - 19585

Published: Jan. 1, 2023

Zn-NO3- batteries can generate electricity while producing NH3 in an environmentally friendly manner, making them a very promising device. However, the conversion of NO3- to involves proton-assisted 8-electron (8e-) transfer process with high kinetic barrier, requiring high-performance catalysts realize potential applications this technology. Herein, we propose heterostructured CoO/CuO nanoarray electrocatalyst prepared on copper foam (CoO/CuO-NA/CF) that electrocatalytically and efficiently convert at low achieves maximum yield 296.9 μmol h-1 cm-2 Faraday efficiency (FE) 92.9% -0.2 V vs. reversible hydrogen electrode (RHE). Impressively, battery based monolithic CoO/CuO-NA/CF delivers 60.3 cm-2, FENH3 82.0%, power density 4.3 mW cm-2. This study provides paradigm for catalyst preparation energy-efficient production simultaneously generating electrical energy.

Language: Английский

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Recent Progress in Metal Phosphorous Chalcogenides: Potential High‐Performance Electrocatalysts

Small, Journal Year: 2023, Volume and Issue: 19(16)

Published: Jan. 5, 2023

Abstract Since the discovery of graphene, research on family 2D materials has been a thriving field. Metal phosphorous chalcogenides (MPX 3 ) have attracted renewed attention due to their distinctive physical and chemical properties. The advantages MPX , such as tunable layered structures, unique electronic properties, thermodynamically appropriate band alignments abundant catalytic active sites surface, make material great potential in electrocatalysis. In this review, applications electrocatalysts recent years, including hydrogen evolution reaction, oxygen reduction are summarized. Structural regulation, doping multi‐material composite that often effective practical methods further optimize properties these materials, introduced. Finally, challenges opportunities for electrocatalytic discussed. This report aims advance future efforts develop related

Language: Английский

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Switching the Symmetry of a Trinuclear Copper Cluster Catalyst for Electroreducing CO₂ to an Asymmetric C₂ Product in an Acidic Electrolyte

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(2), P. 741 - 750

Published: Jan. 2, 2024

Achieving CO2 electroreduction in an acidic electrolyte to obtain high-value products is a great challenge, but it has remained elusive so far due the high requirements for catalyst stability. Herein, we designed and constructed highly stable (acid- alkali-resistant) well-defined crystalline coordination compound catalyst, Inz-Cu3, which can switch structural symmetry by varying distance angle between adjacent synergistic Cu active sites, thus achieving selective conversion of C2 product electrolyte. At current density −320 mA·cm–2, achieved up 42.20% selectivity electrocatalytic reduction electrolyte, catalytic (66.79%, containing 35.27% FEC2H4 31.52% FEC2H5OH) also be conventional alkaline Moreover, functional theory (DFT) calculation control experiments revealed that asymmetric sites with close stabilize *CHOHCH3 intermediates, improving product. This work demonstrates strategy design catalysts enables achievement high-value-added

Language: Английский

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Targeted C-O bond cleavage of *CH2CHO at copper active sites for efficient electrosynthesis of ethylene from CO2 reduction

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 351, P. 123992 - 123992

Published: April 24, 2024

Language: Английский

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A dual-functional Bi-doped Co₃O₄ nanosheet array towards high efficiency 5-hydroxymethylfurfural oxidation and hydrogen production

Chemical Communications, Journal Year: 2022, Volume and Issue: 59(4), P. 442 - 445

Published: Dec. 8, 2022

Here, we report that a Bi-doped Co3O4 nanosheet array grown on Ni foam can selectively catalyze HMF-to-FDCA oxidation at ambient conditions. The catalyst shows faradaic efficiency of 97.7%, yield rate 362.5 μmol h-1, and conversion nearly 100%, surpassing those pristine Co3O4. Furthermore, when the was adopted as both anode cathode in two-electrode system, H2 FDCA be produced simultaneously.

Language: Английский

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Hybrid method based energy management of electric vehicles using battery-super capacitor energy storage

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 77, P. 109835 - 109835

Published: Dec. 13, 2023

Language: Английский

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Advanced strategies for solid electrolyte interface design with MOF materials

Advanced Powder Materials, Journal Year: 2023, Volume and Issue: 3(1), P. 100154 - 100154

Published: Aug. 11, 2023

Emerging energy technologies, aimed at addressing the challenges of scarcity and environmental pollution, have become a focal point for society. However, these actualities present significant modern storage devices. Lithium metal batteries (LMBs) gained considerable attention due to their high density. Nonetheless, use liquid electrolytes raises safety concerns, including dendritic growth, electrode corrosion, electrolyte decomposition. In light challenges, solid-state (SSBs) emerged as highly promising next-generation solution by leveraging lithium anode achieve improved Metal organic frameworks (MOFs), characterized porous structure, ordered crystal frame, customizable configuration, garnered interest potential materials enhancing (SSEs) in SSBs. The integration MOFs into SSEs offers opportunities enhance electrochemical performance optimize interface between electrodes. This is made possible porosity, functionalized structures, abundant open sites MOFs. rational design high-performance MOF-based high-energy Li SSBs (LMSSBs) remains challenge. this comprehensive review, we an overview recent advancements LMSSBs, focusing on strategies optimization property enhancement. We categorize two main types: quasi-solid-state all electrolytes. Within categories, various subtypes are identified based combination mode, additional materials, formation state, preparation method, measures employed. review also highlights existing associated with MOF applications proposes solutions future development prospects guide advancement MOFs-based SSEs. By providing assessment aims offer valuable insights guidance SSEs, key issues faced technology.

Language: Английский

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