Fe nanoparticles confined by multiple-heteroatom-doped carbon frameworks for aqueous Zn-air battery driving CO2 electrolysis

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 655, С. 176 - 186

Опубликована: Ноя. 2, 2023

Язык: Английский

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Sustainable water decontamination in a fluidic sequential electrochemical reactor

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 345, С. 123708 - 123708

Опубликована: Янв. 6, 2024

Язык: Английский

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Bioinspired Tandem Electrode for Selective Electrocatalytic Synthesis of Ammonia from Aqueous Nitrate

Environmental Science & Technology, Год журнала: 2024, Номер 58(4), С. 2144 - 2152

Опубликована: Янв. 18, 2024

The electrocatalytic nitrate reduction reaction (NO3RR) has recently emerged as a promising technique for readily converting aqueous (NO3–) pollutants into valuable ammonia (NH3). It is vital to thoroughly understand the mechanism of rationally design and construct advanced systems that can effectively selectively drive NO3RR. There are several natural enzymes incorporate molybdenum (Mo) activate NO3–. Based on this, cadmium (Cd) single-atom anchored Mo2TiC2Tx electrocatalyst (referred CdSA-Mo2TiC2Tx) through NO3RR generate NH3 was designed demonstrated. In an H-type electrolysis cell at current density 42.5 mA cm–2, had Faradaic efficiency >95% impressive yield rate 48.5 mg h–1 cm–2. Moreover, conversion NO3– CdSA-Mo2TiC2Tx surface further revealed by operando attenuated total reflection Fourier-transform infrared spectroscopy electrochemical differential mass spectrometer. significantly outperformed well reported state-of-the-art catalysts. Density functional theory calculations decreased ability d-p orbital hybridize with NH3* intermediates, thereby decreasing activation energy potential-determining step. This work not only highlights application prospects heavy metal catalysts in but also provides examples bio-inspired electrocatalysts synthesis NH3.

Язык: Английский

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Doping and Interfacial Engineering of MoSe₂ Nanosheets by NH₃ Plasma Promoted Pt for Methanol Electrolysis

ACS Materials Letters, Год журнала: 2024, Номер 6(5), С. 1722 - 1731

Опубликована: Март 29, 2024

The electrochemical methanol–hydrogen transformation as a significant technique for hydrogen generation is limited by low Pt catalytic efficiency. Herein, the doping and interfacial support engineering of MoSe2 nanosheets NH3 plasma confined in mesoporous hollow-carbon-spheres-supported nanoparticles (Pt/N-MoSe2@MHCS) were demonstrated novel platform catalyzing methanol electrolysis. Experiments density functional theory (DFT) calculations confirm that band structure species downshifted to weaken adsorption energy COad/Had, resulting improved CO-poisoning resistance accelerated electrocatalytic kinetics. As result, Pt/N-MoSe2@MHCS shows highest current 99.2 mA cm–2 oxidation overpotential 26 mV@10 evolution. methanol-assisted water electrolyzer assembled showed cell voltage 1070 mV reach 10 cm–2. This work provides guidance design reasonable noble-metal catalysts electrolysis production.

Язык: Английский

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Revealing the role of electrode potential micro-environments in single Mn atoms for carbon dioxide and oxygen electrolysis

Nano Research, Год журнала: 2024, Номер 17(9), С. 7957 - 7966

Опубликована: Июль 1, 2024

Язык: Английский

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Easily constructed porous silver films for efficient catalytic CO₂ reduction and Zn–CO₂ batteries

Nanoscale, Год журнала: 2024, Номер 16(22), С. 10628 - 10636

Опубликована: Янв. 1, 2024

For the electroreduction of carbon dioxide into high value-added chemicals, highly active and selective catalysts are crucial, metallic silver is one most intriguing candidate materials available at a reasonable cost. Herein, through novel two-step operation Ag paste/SBA-15 coating HF etching, porous films on commercial paper with waterproofer (p-Ag/CP) could be easily fabricated large scale as efficient reduction reaction (CO

Язык: Английский

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Advanced strategies for solid electrolyte interface design with MOF materials

Advanced Powder Materials, Год журнала: 2023, Номер 3(1), С. 100154 - 100154

Опубликована: Авг. 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.

Язык: Английский

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Mutual promotion by structural design and intrinsic activity coupling of CNTs/MoC/CoNiMo for water splitting and urea electrolysis

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 343, С. 123470 - 123470

Опубликована: Ноя. 10, 2023

Язык: Английский

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Co Nanoparticles Confined in Mesoporous Mo/N Co‐Doped Polyhedral Carbon Frameworks towards High‐Efficiency Oxygen Reduction

Chemistry - A European Journal, Год журнала: 2023, Номер 29(23)

Опубликована: Янв. 11, 2023

Exploiting effective non-noble metal electrocatalysts for oxygen reduction reaction (ORR) is crucial fuel cells and metal-air batteries. Herein, we designed fabricated Co nanoparticles confined in Mo/N co-doped polyhedral carbon frameworks (Co-NP/MNCF) derived from polyoxometalate-encapsuled metal-organic framework, which showed comparable ORR performance with commercial Pt/C a larger diffusion-limited current density. Moreover, the Co-NP/MNCF also exhibited excellent stability methanol tolerance. These appealing performances can be attributed to porosity regulation heteroatom doping of framework frameworks, could beneficial exposure more active sites, optimization electronic structure mass transfer electrolyte/electron/ion.

Язык: Английский

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Bimetallic phosphoselenide nanosheets as bifunctional catalysts for 5-hydroxymethylfurfural oxidation and hydrogen evolution

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 10(8), С. 2423 - 2429

Опубликована: Янв. 1, 2023

Here, Mn-doped FePSe 3 nanosheets are developed as an efficient bifunctional electrocatalyst, which shows high activity and good stability toward HMF oxidation hydrogen evolution.

Язык: Английский

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