Crystalline modulation of zirconia for efficient nitrate reduction to ammonia under ambient conditions

Tao, Zhiruo; Yin, Haitao; Lv, Yaxin; Guo, Haoran; Chen, Jun Song; Ye, Xiaoyu; Xian, Haohong; Sun, Shengjun; Li, Tingshuai

doi:10.1039/d4cc01399a

Chem. Commun.

2024

DOI: 10.1039/d4cc01399a

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Crystalline modulation of zirconia for efficient nitrate reduction to ammonia under ambient conditions

Zhiruo Tao,

Haitao Yin,

Yaxin Lv

et al.

Abstract: Zirconia as a polycrystalline catalyst can be effectively tuned by doping low-valence elements and meanwhile form abundant oxygen vacancies. Herein, the crystalline structures of zirconia are modulated by scandium doping...

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Cited by 5 publications

References 32 publications

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Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Wang,

Liu,

Peng

et al. 2024

Angewandte Chemie

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Electrochemical reduction of nitrate to ammonia (NRA) offers a sustainable approach for NH3 production and NO3‐ removal but suffers from low NH3 yield rate (<1.20 mmol h‐1 cm‐2). We present bimetallic Cu11Ag3 nanotips with tailored local environment and tip‐enhanced effects, which achieve an ultrahigh NH3 yield rate of 2.36 mmol h‐1 cm‐2 at a low applied potential of ‐0.33 V vs. RHE, a high Faradic efficiency (FE) of 98.8%, and long‐term operation stability at 1800 mg‐N L‐1 NO3‐, outperforming most of the recently reported catalysts. At a NO3‐ concentration as low as 15 mg‐N L‐1, it still delivers a high FE of 86.9% and an NH3 selectivity of 93.8%. Operando ATR‐FTIR spectra, finite‐element method, and DFT calculations reveal that the Cu11Ag3 exhibits reduced adsorption energy barrier of *N intermediates, favorable water dissociation for *H generation and high energy barrier for H2 formation, while its tip‐enhanced enrichment promoting NO3‐ accumulation.

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Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Wang,

Liu,

Peng

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Wang,

Liu,

Peng

et al. 2024

Angew Chem Int Ed

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Physical and electronic structure optimization of multivalent multi-dimensional Cu-based electrodes for efficient electrocatalytic nitrate reduction to ammonia

Yu,

Li,

et al. 2025

Applied Surface Science

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Crystalline modulation of zirconia for efficient nitrate reduction to ammonia under ambient conditions

Abstract: Zirconia as a polycrystalline catalyst can be effectively tuned by doping low-valence elements and meanwhile form abundant oxygen vacancies. Herein, the crystalline structures of zirconia are modulated by scandium doping...

Cited by 5 publications

References 32 publications

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Physical and electronic structure optimization of multivalent multi-dimensional Cu-based electrodes for efficient electrocatalytic nitrate reduction to ammonia

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Crystalline modulation of zirconia for efficient nitrate reduction to ammonia under ambient conditions

Abstract: Zirconia as a polycrystalline catalyst can be effectively tuned by doping low-valence elements and meanwhile form abundant oxygen vacancies. Herein, the crystalline structures of zirconia are modulated by scandium doping...

Cited by 5 publications

References 32 publications

Bimetallic Cu11Ag3 Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Bimetallic Cu11Ag3 Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Bimetallic Cu11Ag3 Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Physical and electronic structure optimization of multivalent multi-dimensional Cu-based electrodes for efficient electrocatalytic nitrate reduction to ammonia

Contact Info

Product

Resources

About

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium

Bimetallic Cu₁₁Ag₃ Nanotips for Ultrahigh Yield Rate of Nitrate‐to‐Ammonium