Hydrophobicity Tailoring of Ferric Covalent Organic Framework/MXene Nanosheets for High‐Efficiency Nitrogen Electroreduction to Ammonia

Advanced Science, Journal Year: 2023, Volume and Issue: 10(15)

Published: March 30, 2023

Abstract Electrocatalytic nitrogen reduction reaction (NRR) represents a promising sustainable approach for NH 3 synthesis. However, the poor NRR performance of electrocatalysts is great challenge at this stage, mainly owing to their low activity and competitive hydrogen evolution (HER). Herein, 2D ferric covalent organic framework/MXene (COF‐Fe/MXene) nanosheets with controllable hydrophobic behaviors are successfully prepared via multiple‐in‐one synthetic strategy. The boosting hydrophobicity COF‐Fe/MXene can effectively repel water molecules inhibit HER enhanced performances. By virtue ultrathin nanostructure, well‐defined single Fe sites, enrichment effect, high hydrophobicity, 1H,1H,2H,2H‐perfluorodecanethiol modified hybrid shows yield 41.8 µg h −1 mg cat. Faradaic efficiency 43.1% −0.5 V versus RHE in 0.1 m Na 2 SO 4 solution, which vastly superior known Fe‐based catalysts even noble metal catalysts. This work provides universal strategy design synthesis non‐precious high‐efficiency N .

Language: Английский

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Recent advances of ammonia synthesis under ambient conditions over metal-organic framework based electrocatalysts

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 340, P. 123161 - 123161

Published: Aug. 10, 2023

Language: Английский

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State-of-the-art electrochemical biosensors based on covalent organic frameworks and their hybrid materials

Talanta, Journal Year: 2023, Volume and Issue: 270, P. 125557 - 125557

Published: Dec. 16, 2023

Language: Английский

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Strategies to achieve effective nitrogen activation

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(5)

Published: Feb. 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.

Language: Английский

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

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 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

Language: Английский

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Recent progress on organic metal compound/MOF hybrids: From controllable synthesis to potential catalytic applications

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 515, P. 215972 - 215972

Published: May 27, 2024

Language: Английский

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Advances and challenges in MXene-based electrocatalysts: unlocking the potential for sustainable energy conversion

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(18), P. 4239 - 4255

Published: Jan. 1, 2024

This review summarizes the design strategies of MXene-based catalysts for HER, OER, ORR and NRR, including surface modification, MXene lattice substitution, morphology, defect heterostructure engineering.

Language: Английский

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Construction of MXenes/COFs heterojunctions for photo/electrocatalytic applications: Opportunities and challenges

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160631 - 160631

Published: Feb. 1, 2025

Language: Английский

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人工光合固氮

Chinese Science Bulletin (Chinese Version), Journal Year: 2025, Volume and Issue: 70(7), P. 835 - 849

Published: Feb. 18, 2025

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Engineering single-atom catalysts on triazine-based covalent organic frameworks for enhanced photocatalytic performance in N2 reduction

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153133 - 153133

Published: June 14, 2024

Language: Английский

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