Advances in ammonia electrosynthesis from ambient nitrate/nitrite reduction

Chem, Journal Year: 2023, Volume and Issue: 9(7), P. 1768 - 1827

Published: June 21, 2023

Language: Английский

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Recent Advances in Electrocatalysts for Efficient Nitrate Reduction to Ammonia

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(43)

Published: June 25, 2023

Abstract Ammonia as an irreplaceable chemical has been widely demanded to keep the sustainable development of modern society. However, its industrial production consumes huge energy and releases extraordinary green‐house gases, leading various environmental issues. To achieve green ammonia is a great challenge that extensively pursued recently. In review, most promising strategy, electrochemical nitrate reduction reaction (e‐NO 3 RR) for purpose comprehensively investigated give full understanding mechanism provide guidance future directions. Particularly, electrocatalysts focused realize high yield rate Faraday efficiency applications. The recent‐developed catalysts, including noble metallic materials, alloys, metal compounds, single‐metal‐atom metal‐free are systematically discussed review effects factors on catalytic performance in e‐NO RR. Accordingly, strategies, defects engineering, coordination environment modulating, surface controlling, hybridization, carefully improve performance, such intrinsic activity selectivity. Finally, perspectives challenges given out. This shall insightful advanced systems efficiently industry.

Language: Английский

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V-doped TiO2 nanobelt array for high-efficiency electrocatalytic nitrite reduction to ammonia

Materials Today Physics, Journal Year: 2022, Volume and Issue: 30, P. 100944 - 100944

Published: Dec. 5, 2022

Language: Английский

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High-efficiency electrocatalytic nitrite reduction toward ammonia synthesis on CoP@TiO2 nanoribbon array

iScience, Journal Year: 2023, Volume and Issue: 26(7), P. 107100 - 107100

Published: June 16, 2023

Electrochemical reduction of nitrite (NO2-) can satisfy the necessity for NO2- contaminant removal and deliver a sustainable pathway ammonia (NH3) generation. Its practical application yet requires highly efficient electrocatalysts to boost NH3 yield Faradaic efficiency (FE). In this study, CoP nanoparticle-decorated TiO2 nanoribbon array on Ti plate (CoP@TiO2/TP) is verified as high-efficiency electrocatalyst selective NH3. When measured in 0.1 M NaOH with NO2-, freestanding CoP@TiO2/TP electrode delivers large 849.57 μmol h-1 cm-2 high FE 97.01% good stability. Remarkably, subsequently fabricated Zn-NO2- battery achieves power density 1.24 mW while delivering 714.40 μg cm-2.

Language: Английский

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Electrocatalytic reduction of nitrate to ammonia on low-cost manganese-incorporated Co3O4 nanotubes

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 324, P. 122293 - 122293

Published: Dec. 16, 2022

Language: Английский

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Recent Advance in Heterogenous Electrocatalysts for Highly Selective Nitrite Reduction to Ammonia Under Ambient Condition

Small Structures, Journal Year: 2023, Volume and Issue: 4(11)

Published: July 23, 2023

Industrial ammonia production mainly relies on the conventional Haber–Bosch process accompanied by high energy consumption and plentiful carbon dioxide emissions, which triggered recent interest to explore more energy‐efficient environmentally benign alternatives. Very recently, electrochemical nitrite reduction in an aqueous medium promises new opportunities for advanced, energy‐efficient, sustainable at ambient conditions. The formation rate Faradic efficiency are strongly associated with adopted electrocatalysts; therefore, striving high‐efficient electrocatalysts is key via reaction. Herein, a critical overview of advances reaction presented, highlighting latest innovative heterogenous including noble metal catalysts, transition‐metal‐based their compounds. Meanwhile, possible pathway electroreduction ammonia, detection, catalytic activity descriptor briefly summarized. Finally, perspective research challenges that convert outlined, increasing contributions route realizing neutral footprint.

Language: Английский

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Unveiling selective nitrate reduction to ammonia with Co3O4 nanosheets/TiO2 nanobelt heterostructure catalyst

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 630, P. 714 - 720

Published: Oct. 18, 2022

Language: Английский

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Fabrication of a hierarchical NiTe@NiFe-LDH core-shell array for high-efficiency alkaline seawater oxidation

iScience, Journal Year: 2023, Volume and Issue: 27(1), P. 108736 - 108736

Published: Dec. 15, 2023

Herein, a hierarchical NiTe@NiFe-LDH core-shell array on Ni foam (NiTe@NiFe-LDH/NF) demonstrates its effectiveness for oxygen evolution reaction (OER) in alkaline seawater electrolyte. This NiTe@NiFe-LDH/NF showcases remarkably low overpotentials of 277 mV and 359 achieving current densities 100 500 mA cm

Language: Английский

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High-efficiency electrosynthesis of ammonia with selective reduction of nitrite over an Ag nanoparticle-decorated TiO₂ nanoribbon array

Inorganic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 10(5), P. 1431 - 1435

Published: Jan. 1, 2023

An Ag nanoparticle-decorated TiO 2 nanoribbon array on a titanium plate performs efficiently in electrocatalytic NO − reduction to NH 3 , achieving large yield of 8743.1 μg h −1 cm −2 with high faradaic efficiency 96.4%.

Language: Английский

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Rational Construction of Heterostructured Cu₃P@TiO₂ Nanoarray for High‐Efficiency Electrochemical Nitrite Reduction to Ammonia

Small, Journal Year: 2023, Volume and Issue: 19(30)

Published: April 14, 2023

Electroreduction of nitrite (NO2- ) to valuable ammonia (NH3 offers a sustainable and green approach for NH3 synthesis. Here, Cu3 P@TiO2 heterostructure is rationally constructed as an active catalyst selective NO2- -to-NH3 electroreduction, with rich nanosized P anchored on TiO2 nanoribbon array Ti plate (Cu3 /TP). When performed in the 0.1 m NaOH NaNO2 , /TP electrode obtains large yield 1583.4 µmol h-1 cm-2 high Faradaic efficiency 97.1%. More importantly, also delivers remarkable long-term stability 50 h electrolysis. Theoretical calculations indicate that intermediate adsorption/conversion processes interfaces are synergistically optimized, substantially facilitating conversion .

Language: Английский

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