Current and further trajectories in designing functional materials for solid oxide electrochemical cells: A review of other reviews

Journal of Energy Chemistry, Год журнала: 2024, Номер 94, С. 302 - 331

Опубликована: Март 8, 2024

Язык: Английский

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Recent advances in ammonia synthesis over ruthenium single-atom-embedded catalysts: A focused review

Chemical Engineering Journal, Год журнала: 2023, Номер 467, С. 143533 - 143533

Опубликована: Май 15, 2023

Язык: Английский

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New Nanocomposites Derived from Cation-Nonstoichiometric Ba_x(Co, Fe, Zr, Y)O_3−δ as Efficient Electrocatalysts for Water Oxidation in Alkaline Solution

ACS Materials Letters, Год журнала: 2024, Номер 6(7), С. 2985 - 2994

Опубликована: Июнь 12, 2024

Perovskite oxides are promising electrocatalysts due to their rich composition, facile synthesis, and favorable stability under oxidizing conditions. Despite extensive research on doping strategies, the impact of cation nonstoichiometry electrocatalytic performance is less understood. Here, we reveal that A-site significantly influences phase evolution Bax(Co, Fe, Zr, Y)O3−δ, transitioning from a single cubic perovskite (x = 1) nanocomposite comprising major minor hexagonal swedenborgite (0.80 ≤ x 0.95). The with nominal chemical composition Ba0.80Co0.7Fe0.1Zr0.1Y0.1O3−δ showed markedly enhanced for oxygen reaction (OER) in alkaline solutions synergistic effect two strongly interacting phases, promoting lattice-oxygen-participating OER pathway. Further optimizing allowed design nanocomposites controlled concentrations. optimal candidate, an increased content phase, demonstrated further boosted performance.

Язык: Английский

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Engineering active sites in ternary CeO2-CuO-Mn3O4 heterointerface embedded in reduced graphene oxide for boosting water splitting activity

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 3, 2025

The rational design of highly efficient and stable bifunctional catalysts for overall water splitting is vitally important. In this study, to increase the active catalytic sites CeO2 electrochemical splitting, a ternary CeO2-CuO-Mn3O4 heterostructure, synthesized by coprecipitation method, loaded on reduced graphene oxide (rGO) nanosheets in different amounts produce CeO2-CuO-Mn3O4@rGO nanocomposites. It found that nanocomposites show higher electrocatalytic activity than unsupported samples, best observed when wieght ratio three times rGO. CeO2-CuO-Mn3O4@rGO(3:1) requires low overpotentials 130 270 mV hydrogen oxygen evolution reactions (HER OER) at current density 10 mA cm−2. Furthermore, material demonstrates large electrochemically surface area, charge transfer resistance, suitable kintics, high long-term stability both OER HER. Additionally, used as self-supported electrodes reaction, cell voltage 1.68 V obtained. This superior performance due to: (i) multi-metal strong synergistic effects; (ii) conductivity rGO, which faciliate favorable electron transfer; (iii) homogenous anchoring increases number available catalyst surface.

Язык: Английский

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Recent Progress and Future Outlook on Catalysts for Ammonia Electrosynthesis: Materials, Structural Design, and Reaction Efficiency

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

With the increasing demand for downstream ammonia products, research on fuel has received growing attention. Therefore, under "dual carbon" context, it is crucial to develop an energy-efficient and environmentally friendly method synthesis. Current indicates that electrocatalytic synthesis one of most promising methods. This study systematically summarizes three major factors influencing nitrogen reduction reaction (eNRR) catalysts synthesis: material optimization, structural design, engineering. In terms materials, precious-metal-based, non-precious-metal-based, metal-free eNRR are classified listed. By examination properties catalytic effects various metals non-metals in synthesis, materials with highest activity can be further identified. To enhance efficiency, strategies, such as vacancy creation, doping, interface engineering, facet changes size morphology active sites, have been summarized. integration reactions, including microscale activation, proton transfer, electron efficiency was discussed depth. Finally, urgent issues need addressed current were discussed, unique insights future development provided. review aims provide innovative ideas design improve rate selectivity catalysts.

Язык: Английский

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MoS2-based core-shell nanostructures: Highly efficient materials for energy storage and conversion applications

Journal of Energy Storage, Год журнала: 2023, Номер 66, С. 107393 - 107393

Опубликована: Апрель 19, 2023

Язык: Английский

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Recent Progress and Future Prospects of Anions O‐site Doped Perovskite Oxides in Electrocatalysis for Various Electrochemical Systems

Advanced Science, Год журнала: 2023, Номер 10(35)

Опубликована: Окт. 31, 2023

Abstract With the rapid development of novel energy conversion and storage technologies, there is a growing demand for enhanced performance in wide range electrocatalysts. Perovskite oxides (ABO 3 ) have caused widespread concerns due to their excellent electrocatalytic properties, low cost, stable reliable performance. In recent years, research on anion O‐site doping perovskite has been cynosure, which considered as promising route enhancing However, systematic review summarizing progress anion‐doped still lacking. Therefore, this mainly introduces elements strategies various common anions doped at oxides, analyzes influence physical chemical properties perovskites, separately concludes applications electrocatalysis. This will provide ideas prospects subsequent high oxides.

Язык: Английский

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WS₂/Mesoporous Carbon Nanostructures as a Bifunctional Electrode for All Quasi‐Solid‐State Supercapacitor and Oxygen Evolution Reaction

Advanced Materials Technologies, Год журнала: 2024, Номер 9(7)

Опубликована: Фев. 4, 2024

Abstract 2D transition‐metal sulfides have developed as favorable electroactive materials for electrochemical energy storage and conversion applications. In this work, WS 2 /mesoporous carbon (MC) is by a one‐step hydrothermal technique supercapacitor oxygen evaluation reaction (OER) application. However, the metal poor rate cyclic performance due to aggregations between two layers of structures restricting their performance. The interaction nanosheets MC produces synergistic effect, resulting in decent synthesized used prepare quasi‐solid‐state symmetric (QSSS) asymmetric (QSSA) configuration enable highest specific capacitance ( C SP ) 305.45 F g −1 204.21 @ 10 mV s , respectively. Moreover, power density QSSS QSSA devices are 31.1 Wh kg @824.95 W 24.74 @549.84 Additionally, multifunctionality binary nanocomposite also tested OER. composite shows desirable over potential 307 6 m KOH electrolyte, with 69 dec Tafel slope. dual role /MC reveals sulfides.

Язык: Английский

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LaFe_1–xCo_xO₃ Perovskite Nanoparticles Supported on Ni(OH)₂ as Electrocatalyst for the Oxygen Evolution Reaction

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(2), С. 1536 - 1547

Опубликована: Янв. 12, 2024

Multifunctional ABO3 perovskite oxide nanomaterial was found to be an exceptional electrocatalyst for the oxygen evolution reaction (OER), a key anodic in water electrolysis. To modify properties of electrocatalysts, different activation strategies have been used recent years. This study uses combination two strategies, namely, doping and nanocomposite fabrication, generate as OER. Here, we demonstrated this by synthesizing LaFeO3 nanoparticles with percentages cobalt on B-site using sol–gel method. The smaller Co ions Fe sites led lattice distortion compression crystal lattice, leading microstrains at grain boundaries formation surface defects. Researchers then anchored composition-optimized doped LaFe0.8Co0.2O3 onto nickel hydroxide (Ni(OH)2) nanoflowers alpha phase situ hydrothermal treatment, resulting LaFe0.8Co0.2O3/Ni(OH)2 (LFCO-0.2/Ni(OH)2) nanocomposite. hybrid showed low overpotential 329 mV j = 10 mA/cm2 small Tafel slope 95 dec–1 increased activity is attributed texture construction 2D Ni(OH)2 decorated synergistic effect between them. synthesized LFCO-0.2/Ni(OH)2 composite features large number active area, excellent catalytic activity. approach paves change direction rational design composites nanomaterials defect engineering superior OER performance.

Язык: Английский

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Electrodeposition of Fe-Co-Ni coating by cyclic voltammetry for efficient hydrogen production

Journal of Electroanalytical Chemistry, Год журнала: 2024, Номер 958, С. 118151 - 118151

Опубликована: Март 3, 2024

Язык: Английский

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