Electrochemical Nitrate Reduction: Ammonia Synthesis and the Beyond

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(17)

Published: June 9, 2023

Natural nitrogen cycle has been severely disrupted by anthropogenic activities. The overuse of N-containing fertilizers induces the increase nitrate level in surface and ground waters, substantial emission oxides causes heavy air pollution. Nitrogen gas, as main component air, used for mass ammonia production over a century, providing enough nutrition agriculture to support world population increase. In last decade, researchers have made great efforts develop processes under ambient conditions combat intensive energy consumption high carbon associated with Haber-Bosch process. Among different techniques, electrochemical reduction reaction (NO

Language: Английский

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Unveiling Cutting‐Edge Developments in Electrocatalytic Nitrate‐to‐Ammonia Conversion

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)

Published: Jan. 11, 2024

The excessive enrichment of nitrate in the environment can be converted into ammonia (NH

Language: Английский

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Recent progress and strategies on the design of catalysts for electrochemical ammonia synthesis from nitrate reduction

Inorganic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 10(12), P. 3489 - 3514

Published: Jan. 1, 2023

Ammonia (NH3) is an essential raw material in the production of fertilizers and a promising carbon-free energy carrier, however, its synthesis still depends on energy- capital-intensive Haber–Bosch process. Recently, electrochemical N2 reduction reaction has attracted significant interest as emerging method for NH3 under ambient conditions. However, limited solubility aqueous electrolyte strong NN bonds result low yield rate, inferior faradaic efficiency unsatisfactory selectivity, impeding further practical application. Considering high water nitrate (NO3−), NO3− (NO3−RR) become fascinating route achieving sustainable NH3, enormous progress been made this field. As consequence, review discusses mechanism systematically summarizes recent development electrocatalysts NO3−RR, including noble-metal-based materials, single-atom metal catalysts, transition-metal-based catalysts. Diverse design strategies catalysts to boost NO3−RR performance, such defect engineering, rational structure design, strain engineering constructing heterostructures, are discussed. This followed by illustration how robust understanding optimization affords fundamental insights into efficiency, selectivity electrocatalysts. Finally, we conclude with future perspectives critical issues, challenges research directions high-efficiency selective NH3.

Language: Английский

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Engineering the surface chemical microenvironment over CuO nanowire arrays by polyaniline modification for efficient ammonia electrosynthesis from nitrate

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 320, P. 121981 - 121981

Published: Sept. 13, 2022

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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Cu/Co bimetallic conductive MOFs: Electronic modulation for enhanced nitrate reduction to ammonia

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 466, P. 143134 - 143134

Published: April 25, 2023

Language: Английский

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Sustainable Ammonia Electrosynthesis from Nitrate Wastewater Coupled to Electrocatalytic Upcycling of Polyethylene Terephthalate Plastic Waste

ACS Nano, Journal Year: 2023, Volume and Issue: 17(13), P. 12422 - 12432

Published: June 26, 2023

Integrating the nitrate reduction reaction (NO3RR) with polyethylene terephthalate (PET) hydrolysate oxidation to construct nitrate/PET coelectrolysis system holds a great promise of realizing simultaneous upcycling wastewater and PET plastic waste, which, however, is still an almost untouched research area. Herein, we develop ultralow content Ru-incorporated Co-based metal-organic frameworks as bifunctional precatalyst, which can be in situ reconstructed Ru-Co(OH)2 at cathode Ru-CoOOH anode under electrocatalytic environments, function real active catalysts for NO3RR oxidation, respectively. With two-electrode system, current density 50 mA cm-2 achieved cell voltage only 1.53 V, production ammonia formate lower energy consumption. This study provides concept construction systems waste.

Language: Английский

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Interfacial engineering of platinum group metals electrocatalysts for advanced electrocatalysis

Surfaces and Interfaces, Journal Year: 2023, Volume and Issue: 42, P. 103360 - 103360

Published: Sept. 1, 2023

Language: Английский

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Electrochemical Co-Production of Ammonia and Biodegradable Polymer Monomer Glycolic Acid via the Co-Electrolysis of Nitrate Wastewater and Waste Plastic

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(15), P. 10394 - 10404

Published: July 25, 2023

Electrochemical reformation of nitrate wastewater and poly(ethylene terephthalate) (PET) plastic waste into ammonia (NH3) fine chemicals is a sustainable strategy for resource utilization. Herein, co-production system glycolic acid (GA, degradable polymer monomer) constructed by coupling reduction ethylene glycol (EG, in PET hydrolysate) oxidation. Low-crystalline CoOOH (LC-CoOOH/CF) Pd nanothorns (Pd NTs/NF) grown situ on the metal foam substrates are employed as cathode anode, respectively. The high density amorphous regions LC-CoOOH/CF enables enhanced adsorption provides abundant active sites, ultimately leading to an Faradic efficiency (FE) 97.38 ± 1.0% at −0.25 V vs reversible hydrogen electrode (RHE). Meanwhile, unique nanothorn morphology endows NTs/NF with high-curvature tip, triggering tip effect (TE) promote highly selective oxidation EG GA. Furthermore, two-electrode system, NH3 GA operated low energy consumption (onset voltage: 0.5 V), much lower than traditional electrolysis process (1.4 V). This study method utilization co-produce value-added chemicals.

Language: Английский

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Main-group indium single-atom catalysts for electrocatalytic NO reduction to NH₃

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(13), P. 6814 - 6819

Published: Jan. 1, 2023

In single atoms confined in amorphous MoO 3 (In 1 /a-MoO ) are reported to be an efficient catalyst for NO electroreduction NH , attributed the ability of single-site inhibit hydrogen evolution and optimize NO-to-NH hydrogenation energetics.

Language: Английский

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