The synergistic catalysis effect on electrochemical nitrate reduction at the dual-function active sites of the heterostructure

Li, Yuxiang; Lu, Zhenjie; Zheng, Lei; Yan, Xing; Xie, Junliang; Yu, Zhonghao; Zhang, Shengli; Jiang, Fang; Chen, Huan

doi:10.1039/d4ee00784k

Energy Environ. Sci.

2024

DOI: 10.1039/d4ee00784k

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The synergistic catalysis effect on electrochemical nitrate reduction at the dual-function active sites of the heterostructure

Yuxiang Li,

Zhenjie Lu,

Lei Zheng

et al.

Abstract: The advanced design concept of catalyst to drive efficient electrochemical nitrate reduction reaction (NITRR) is highly desirable for converting the harmful nitrate (NO3−) to ammonia (NH3) as hydrogen carrier. Here,...

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Cited by 6 publications

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Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia

Yu,

Cheng,

Cheng

et al. 2024

Advanced Materials

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Ammonia (NH3) is widely recognized as a crucial raw material for nitrogen‐based fertilizer production and eco‐friendly hydrogen‐rich fuels. Currently, the Haber–Bosch process still dominates the worldwide industrial NH3 production, which consumes substantial energy and contributes to enormous CO2 emission. As an alternative NH3 synthesis route, electrocatalytic reduction of NOx species (NO3−, NO2−, and NO) to NH3 has gained considerable attention due to its advantages such as flexibility, low power consumption, sustainability, and environmental friendliness. This review timely summarizes an updated and critical survey of mechanism, design, and application of Ru‐based electrocatalysts for NOx reduction. First, the reason why the Ru‐based catalysts are good choice for NOx reduction to NH3 is presented. Second, the reaction mechanism of NOx over Ru‐based materials is succinctly summarized. Third, several typical in situ characterization techniques, theoretical calculations, and kinetics analysis are examined. Subsequently, the construction of each classification of the Ru‐based electrocatalysts according to the size of particles and compositions is critically reviewed. Apart from these, examples are given on the applications in the production of valuable chemicals and Zn−NOx batteries. Finally, this review concludes with a summary highlighting the main practical challenges relevant to selectivity and efficiency in the broad range of NOx concentrations and the high currents, as well as the critical perspectives on the fronter of this exciting research area.

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Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia

Yu,

Cheng,

Cheng

et al. 2024

Advanced Materials

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Electrocatalytic Reduction of Nitrate/Nitrite to Ammonia on CuCo Nanoparticles Decorated N‐doped Carbon

Cang,

Hua,

Shen

et al. 2024

Advanced Sustainable Systems

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Electrocatalytic nitrate (NO3−)/nitrite (NO2−) reduction of ammonia (NH3) provides energy‐saving and sustainable methods for NH3 synthesis. However, both reactions involve multiple electrons and multiple protons, making the reaction process complex with many by‐products. Thus, efficient catalysts are needed to improve the selectivity and yield of ammonia. Herein, the CuCo nanoparticles decorated N‐doped carbon (CuCo‐NC) derived from zeolitic imidazolate framework (ZIF) with a cross‐shaped leaf structure has been synthesized as electrocatalysts for NO3−/ NO2− reduction. The obtained CuCo‐NC possesses Cu‐doped Co metallic nanoparticles, and hierarchical structure, and demonstrated to exhibit good activity and selectivity in electrocatalytic NO3−/NO2− reduction to NH3 synthesis. In the electrocatalytic NO3− reduction of NH3, the Faraday efficiency of NH3 reached 97% and the yield reached 7.17 mg h−1 cm−2 at −0.3 V. In the electrocatalytic NO2− reduction of NH3, the Faraday efficiency of NH3 reached 92% and the yield reached 8.34 mg h−1 cm−2 at −0.3 V, demonstrating good stability in the cyclic electrolysis of both reactions. The CuCo‐NC with a cross‐shaped leaf structure exhibits excellent electrocatalytic NO3−/NO2− reduction activity of CuCo‐NC and therefore highlights the promising potential of bimetallic electrocatalysts for NH3 synthesis.

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Promoting active hydrogen supply for kinetically matched tandem electrocatalytic nitrate reduction to ammonia

Kang,

Xu,

Chen

et al. 2025

Applied Catalysis B: Environment and Energy

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The synergistic catalysis effect on electrochemical nitrate reduction at the dual-function active sites of the heterostructure

Abstract: The advanced design concept of catalyst to drive efficient electrochemical nitrate reduction reaction (NITRR) is highly desirable for converting the harmful nitrate (NO3−) to ammonia (NH3) as hydrogen carrier. Here,...

Cited by 6 publications

References 52 publications

Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia

Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia

Electrocatalytic Reduction of Nitrate/Nitrite to Ammonia on CuCo Nanoparticles Decorated N‐doped Carbon

Promoting active hydrogen supply for kinetically matched tandem electrocatalytic nitrate reduction to ammonia

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The synergistic catalysis effect on electrochemical nitrate reduction at the dual-function active sites of the heterostructure

Abstract: The advanced design concept of catalyst to drive efficient electrochemical nitrate reduction reaction (NITRR) is highly desirable for converting the harmful nitrate (NO3−) to ammonia (NH3) as hydrogen carrier. Here,...

Cited by 6 publications

References 52 publications

Advanced Ruthenium‐Based Electrocatalysts for NOx Reduction to Ammonia

Advanced Ruthenium‐Based Electrocatalysts for NOx Reduction to Ammonia

Electrocatalytic Reduction of Nitrate/Nitrite to Ammonia on CuCo Nanoparticles Decorated N‐doped Carbon

Promoting active hydrogen supply for kinetically matched tandem electrocatalytic nitrate reduction to ammonia

Contact Info

Product

Resources

About

Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia

Advanced Ruthenium‐Based Electrocatalysts for NO_x Reduction to Ammonia