Advances in modification of Bi2MoO6 and its photocatalysis: A review

Journal of Alloys and Compounds, Год журнала: 2024, Номер 982, С. 173759 - 173759

Опубликована: Фев. 3, 2024

Язык: Английский

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Multivalent Sulfur Vacancy‐Rich NiCo₂S₄@MnO₂ Urchin‐Like Heterostructures for Ambient Electrochemical N₂ Reduction to NH₃

Small, Год журнала: 2024, Номер 20(31)

Опубликована: Март 5, 2024

Abstract Innovative advances in the exploitation of effective electrocatalytic materials for reduction nitrogen (N 2 ) to ammonia (NH 3 are highly required sustainable production fertilizers and zero‐carbon emission fuel. In order achieve footprints renewable NH production, electrochemical N reaction (NRR) provides a favorable energy‐saving alternative but it requires more active, efficient, selective catalysts. current work, sulfur vacancy (Sv)‐rich NiCo S 4 @MnO heterostructures efficaciously fabricated via facile hydrothermal approach followed by heat treatment. The urchin‐like Sv‐NiCo serve as cathodes, which demonstrate an optimal yield 57.31 µg h −1 mg cat Faradaic efficiency 20.55% at −0.2 V versus reversible hydrogen electrode (RHE) basic electrolyte owing synergistic interactions between MnO . Density functional theory (DFT) simulation further verifies that Co‐sites beneficial lowering energy threshold adsorption successive protonation. Distinctive micro/nano‐architectures exhibit high NRR activities might motivate researchers explore concentrate on development ambient generation.

Язык: Английский

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Defect-rich AuCu@Ag nanowires with exclusive strain effect accelerate nitrate reduction to ammonia

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 350, С. 123919 - 123919

Опубликована: Апрель 24, 2024

Язык: Английский

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A High-Throughput Screening toward Efficient Nitrogen Fixation: Transition Metal Single-Atom Catalysts Anchored on an Emerging π–π Conjugated Graphitic Carbon Nitride (g-C₁₀N₃) Substrate with Dirac Dispersion

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(9), С. 11812 - 11826

Опубликована: Фев. 21, 2023

TM-Nx is becoming a comforting catalytic center for sustainable and green ammonia synthesis under ambient conditions, resulting in increasing interest single-atom catalysts (SACs) the electrochemical nitrogen reduction reaction (NRR). However, given poor activity unsatisfactory selectivity of existing catalysts, it remains long-standing challenge to design efficient fixation. Currently, two-dimensional (2D) graphitic carbon-nitride substrate provides abundant evenly distributed holes stably supporting transition-metal atoms, which presents fascinating prospect overcoming this promoting NRR. An emerging holey skeleton with C10N3 stoichiometric ratio (g-C10N3) from supercell graphene constructed, outstanding electric conductivity achieving high-efficiency NRR due Dirac band dispersion. Herein, high-throughput first-principles calculation carried out evaluate feasibility π-d conjugated SACs single TM atom anchored on g-C10N3 (TM = Sc-Au) We find that W metal embedded (W@g-C10N3) can compromise ability adsorb key target species (N2H NH2), hence acquiring an optimal behavior among 27 TM-candidates. Our calculations demonstrate W@g-C10N3 shows well-suppressed HER and, impressively, low energy cost -0.46 V. Additionally, all-around descriptors are proposed uncover fundamental mechanism activity, 3D volcano plot (limiting potential, screening strategy, electron origin) uncovers trend, quick prescreening numerous candidates. Overall, strategy structure- activity-based TM-Nx-containing unit will offer useful insight further theoretical experimental attempts.

Язык: Английский

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Unveiling cutting-edge progress in the fundamentals of MXene: Synthesis strategies, energy and bio-environmental applications

Coordination Chemistry Reviews, Год журнала: 2024, Номер 511, С. 215870 - 215870

Опубликована: Апрель 21, 2024

Язык: Английский

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Enhancing Green Ammonia Electrosynthesis Through Tuning Sn Vacancies in Sn-Based MXene/MAX Hybrids

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Янв. 16, 2024

Abstract Renewable energy driven N 2 electroreduction with air as nitrogen source holds great promise for realizing scalable green ammonia production. However, relevant out-lab research is still in its infancy. Herein, a novel Sn-based MXene/MAX hybrid abundant Sn vacancies, Sn@Ti CT X /Ti SnC–V, was synthesized by controlled etching SnC MAX phase and demonstrated an efficient electrocatalyst electrocatalytic reduction. Due to the synergistic effect of heterostructure, existence vacancies highly dispersed active sites, obtained SnC–V exhibits optimal NH 3 yield 28.4 µg h −1 mg cat excellent FE 15.57% at − 0.4 V versus reversible hydrogen electrode 0.1 M Na SO 4 , well ultra-long durability. Noticeably, this catalyst represents satisfactory rate 10.53 home-made simulation device, where commercial electrochemical photovoltaic cell employed power source, ultrapure water feed stock. The as-proposed strategy potential toward production terms financial cost according systematic technical economic analysis. This work significance large-scale

Язык: Английский

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Strategies to achieve effective nitrogen activation

Carbon Energy, Год журнала: 2024, Номер 6(5)

Опубликована: Фев. 23, 2024

Abstract Ammonia serves as a crucial chemical raw material and hydrogen energy carrier. Aqueous electrocatalytic nitrogen reduction reaction (NRR), powered by renewable energy, has attracted tremendous interest during the past few years. Although some achievements have been revealed in aqueous NRR, significant challenges also identified. The activity selectivity are fundamentally limited activation competitive evolution. This review focuses on hurdles of delves into complementary strategies, including materials design system optimization (reactor, electrolyte, mediator). Then, it introduces advanced interdisciplinary technologies that recently emerged for using high‐energy physics such plasma triboelectrification. With better understanding corresponding mechanisms coming years, these potential to be extended further applications. provides insight stability different systems. We then recommend rigorous detailed protocol investigating NRR performance highlight several research directions this exciting field, coupling with applications, situ/operando characterizations, theoretical calculations.

Язык: Английский

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Enhanced N₂ Adsorption and Activation by Combining Re Clusters and In Vacancies as Dual Sites for Efficient and Selective Electrochemical NH₃ Synthesis

Nano Letters, Год журнала: 2024, Номер 24(2), С. 748 - 756

Опубликована: Янв. 3, 2024

The electrochemical N2 reduction reaction (NRR) is a green and energy-saving sustainable technology for NH3 production. However, high activity selectivity can hardly be achieved in the same catalyst, which severely restricts development of NRR. In2Se3 with partially occupied p-orbitals suppress H2 evolution (HER), shows excellent presence VIn simultaneously provide active sites confine Re clusters through strong charge transfer. Additionally, well-isolated stabilized on by confinement effect result Re-VIn maximum availability. By combining as dual spontaneous adsorption activation, NRR performance enhanced significantly. As result, Re-In2Se3-VIn/CC catalyst delivers yield rate (26.63 μg h–1 cm–2) FEs (30.8%) at −0.5 V vs RHE.

Язык: Английский

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Introduction of element Bi in the P-block promotes N2 activation for efficient electrocatalytic nitrogen reduction to produce ammonia

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 355, С. 124173 - 124173

Опубликована: Май 10, 2024

Язык: Английский

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In@Mn₃O₄ with Rich Interface Low‐Coordination Mn Active Sites for Boosting Electrocatalytic Nitrogen Reduction

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract Electrocatalytic nitrogen reduction reaction (NRR) is a potential strategy for green synthesis of ammonia. However, the lack efficient catalysts with both high activity and selectivity restricts development electrocatalytic NRR. In this study, simple water‐based redox method used to synthesize core–shell nanoparticle catalyst 2D Mn 3 O 4 as shell core. The rich interface low‐coordination helps provide more active sites At same time, nucleus gives electrons shell, jointly promotes adsorption activation nitrogen, well enhancement NRR activity. Moreover, designed hydrophobicity, which effectively reduces side hydrogen evolution H proton generated from water dissociation, improved. 0.1 m Na 2 SO , ammonia yield In@Mn 89.44 µg h −1 mg cat (−0.9 V vs RHE) maximum Faradaic efficiency 27.01% at −0.7 (vs RHE), superior most reported catalysts. unique structure design low coordination insights regulation nitrogen–water environment rational advanced electrocatalysts.

Язык: Английский

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