Mitigating Intraphase Catalytic‐Domain Transfer via CO2 Laser for Enhanced Nitrate‐to‐Ammonia Electroconversion and Zn‐Nitrate Battery Behavior DOI

Yeryeong Lee,

Jayaraman Theerthagiri,

Nuttapon Yodsin

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(47)

Published: Aug. 13, 2024

Abstract Developing sustainable energy solutions is critical for addressing the dual challenges of demand and environmental impact. In this study, a zinc‐nitrate (Zn−NO 3 − ) battery system was designed simultaneous production ammonia (NH via electrocatalytic NO reduction reaction (NO RR) electricity generation. Continuous wave CO 2 laser irradiation yielded precisely controlled CoFe O 4 @nitrogen‐doped carbon (CoFe @NC) hollow nanocubes from Prussian blue analogs (CoFe‐PBA) as integral electrocatalyst RR in 1.0 M KOH, achieving remarkable NH + rate 10.9 mg h −1 cm −2 at −0.47 V versus Reversible Hydrogen Electrode with exceptional stability. situ ex methods revealed that @NC surface transformed into high‐valent Fe/CoOOH active species, optimizing adsorption (*NO *NO species) intermediates. Furthermore, density functional theory calculations validated possible pathway on starting conversion to intermediates, followed by *NO. Subsequent protonation forms *NH leading formation final protonation. The Zn−NO utilizing cathode exhibits functionality generating stable open‐circuit voltage 1.38 Zn/Zn 2+ producing . This study highlights innovative use transform cost‐effective catalysts hierarchical structures RR‐to‐NH conversion, positioning promising technology industrial applications.

Language: Английский

Pulsed Laser-patterned high-entropy single-atomic sites and alloy coordinated graphene oxide for pH-universal water electrolysis DOI

Yeryeong Lee,

Jayaraman Theerthagiri, Wanwisa Limphirat

et al.

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

We introduce high-entropy single-atom catalysts (HESACs) from FeRuPtNiCoPd HEA on GO via pulsed laser irradiation in liquids. Synergistic interactions and rapid Fe 2+ photoreduction enhance active sites, achieving superior overall water splitting.

Language: Английский

Citations

6
In situ Spectroscopy: Delineating the mechanistic understanding of electrochemical energy reactions DOI
Jayaraman Theerthagiri, K. Karuppasamy, C. Justin Raj

et al.

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101451 - 101451

Published: Feb. 1, 2025

Language: Английский

Citations

1
Mitigating Intraphase Catalytic‐Domain Transfer via CO2 Laser for Enhanced Nitrate‐to‐Ammonia Electroconversion and Zn‐Nitrate Battery Behavior DOI

Yeryeong Lee,

Jayaraman Theerthagiri,

Nuttapon Yodsin

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(47)

Published: Aug. 13, 2024

Abstract Developing sustainable energy solutions is critical for addressing the dual challenges of demand and environmental impact. In this study, a zinc‐nitrate (Zn−NO 3 − ) battery system was designed simultaneous production ammonia (NH via electrocatalytic NO reduction reaction (NO RR) electricity generation. Continuous wave CO 2 laser irradiation yielded precisely controlled CoFe O 4 @nitrogen‐doped carbon (CoFe @NC) hollow nanocubes from Prussian blue analogs (CoFe‐PBA) as integral electrocatalyst RR in 1.0 M KOH, achieving remarkable NH + rate 10.9 mg h −1 cm −2 at −0.47 V versus Reversible Hydrogen Electrode with exceptional stability. situ ex methods revealed that @NC surface transformed into high‐valent Fe/CoOOH active species, optimizing adsorption (*NO *NO species) intermediates. Furthermore, density functional theory calculations validated possible pathway on starting conversion to intermediates, followed by *NO. Subsequent protonation forms *NH leading formation final protonation. The Zn−NO utilizing cathode exhibits functionality generating stable open‐circuit voltage 1.38 Zn/Zn 2+ producing . This study highlights innovative use transform cost‐effective catalysts hierarchical structures RR‐to‐NH conversion, positioning promising technology industrial applications.

Language: Английский

Citations

5
Recent Progress in Cobalt‐Based Electrocatalysts for Efficient Electrochemical Nitrate Reduction Reaction DOI Open Access

Xiangfei Meng,

Xinyi Tan,

Yan Ma

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Abstract Electrochemical nitrate reduction reaction (NO 3 − RR) provides a sustainable and efficient way to producing ammonia at ambient condition denitrifying wastewater. However, NO RR is still confronted with some barriers present, because of the sluggish kinetics competitive hydrogen evolution (HER). Particularly, it requires highly robust selective electrocatalysts, which steers complex multistep reactions toward process. Among various Co‐based electrocatalysts demonstrate rapid kinetics, steady catalytic performance, suppressive impact on HER for RR, attracting more attention. In this review, focused Cobalt‐based design corresponding strategies are summarized. detail, these can be concisely classified into five categories, including oxides hydroxides, alloys, metal, heteroatom‐doped materials, metal organic frameworks derivatives. Each category extensively discussed, its concepts ideas clearly conveyed through appropriate illustrations figures. Finally, scientific technological challenges as well promising constructing system in future discussed. It expected that review provide valuable insights guidance rational ultimately advancing their applications industrial scenario high current density, stability, energy efficiency.

Language: Английский

Citations

5
Intraphase Switching of Hollow CoCuFe Nanocubes for Efficient Electrochemical Nitrite Reduction to Ammonia DOI
Ahreum Min,

Jueun Park,

Talshyn Begildayeva

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(40), P. 53718 - 53728

Published: Aug. 22, 2024

This study addresses the urgent need to focus on nitrite reduction reaction (NO

Language: Английский

Citations

4
Metal- and Site-Specific Roles of High-Entropy Spinel Oxides in Catalytic Oxidative Polymerization of Water Contaminants DOI
Yalan Mo, Zhihao Tian,

Kunsheng Hu

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 5928 - 5942

Published: March 27, 2025

Language: Английский

Citations

0
Laser‐Regulated CoFeRu‐LDH Nanostructures: Nitrite‐to‐Ammonia Production in Zn–Nitrite Battery and Oxygen Evolution in Water Electrolysis DOI

Sieon Jung,

Raja Arumugam Senthil, Cheol Joo Moon

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract Herein, the design and synthesis of Ru‐doped CoFe‐layered double hydroxide (CoFeRu─LDH) nanostructures is presented via an innovative yet straightforward pulsed laser method. The CoFeRu─LDH catalyst demonstrates outstanding electrocatalytic performance, achieving a high NH 4 + Faradaic efficiency (FE) 89.65% at −0.7 V versus reversible hydrogen electrode for nitrite reduction reaction (NO 2 − RR) low overpotential 297 mV 10 mA cm −2 oxygen evolution (OER). Comprehensive in situ ex analyses reveal electrochemically energetic species formed on surface during NO RR OER. Theoretical studies confirm that Ru doping plays imperative role tuning electronic structure CoFeRu─LDH, lowering its barriers, thereby remarkably enhancing OER performance. Specifically, galvanic Zn–nitrite battery using as cathode efficiently converts to with FE 96.8% while concurrently generating electricity power density 4.14 . Furthermore, pairing anode Pt/C water electrolysis enables H production cell voltage 1.57 This study presents new pathway designing versatile, high‐performance electrocatalysts sustainable energy conversion carbon‐free 3 fuels.

Language: Английский

Citations

0
Mitigating Intraphase Catalytic‐Domain Transfer via CO2 Laser for Enhanced Nitrate‐to‐Ammonia Electroconversion and Zn‐Nitrate Battery Behavior DOI

Yeryeong Lee,

Jayaraman Theerthagiri,

Nuttapon Yodsin

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(47)

Published: Aug. 13, 2024

Abstract Developing sustainable energy solutions is critical for addressing the dual challenges of demand and environmental impact. In this study, a zinc‐nitrate (Zn−NO 3 − ) battery system was designed simultaneous production ammonia (NH via electrocatalytic NO reduction reaction (NO RR) electricity generation. Continuous wave CO 2 laser irradiation yielded precisely controlled CoFe O 4 @nitrogen‐doped carbon (CoFe @NC) hollow nanocubes from Prussian blue analogs (CoFe‐PBA) as integral electrocatalyst RR in 1.0 M KOH, achieving remarkable NH + rate 10.9 mg h −1 cm −2 at −0.47 V versus Reversible Hydrogen Electrode with exceptional stability. situ ex methods revealed that @NC surface transformed into high‐valent Fe/CoOOH active species, optimizing adsorption (*NO *NO species) intermediates. Furthermore, density functional theory calculations validated possible pathway on starting conversion to intermediates, followed by *NO. Subsequent protonation forms *NH leading formation final protonation. The Zn−NO utilizing cathode exhibits functionality generating stable open‐circuit voltage 1.38 Zn/Zn 2+ producing . This study highlights innovative use transform cost‐effective catalysts hierarchical structures RR‐to‐NH conversion, positioning promising technology industrial applications.

Language: Английский

Citations

0