Amorphous Ni3B Promotes Electroreduction of Nitrate to Ammonia DOI
Yue Cao, Shengbo Yuan, Hai Yan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(47), P. 64807 - 64815

Published: Nov. 13, 2024

The electrocatalytic nitrate reduction to ammonia (NRA) can address nitrogen cycle imbalance and high carbon emissions; however, the intense competition of hydrogen evolution reaction (HER) restricts rate NH3 production. Herein, amorphous Ni3B (a-Ni3B) is designed balance NRA HER. yield a-Ni3B surpasses those pure Ni NiO, which attributed preferential adsorption NO3– on B sites for reaction, greatly inhibiting Furthermore, possesses advantages in performance compared crystalline (c-Ni3B) due more active (*H) generated during catalytic process. *H process verified by electron spin resonance technique. mechanism comprehensively discussed based results situ characterization density functional theory calculations. enhance production HER, provides ideas sustainable synthesis.

Language: Английский

Synergistic Cu/Cu2O/Co3O4 catalyst with crystalline-amorphous interfaces for efficient electrochemical nitrate reduction to ammonia DOI
Yan Shi, Long Chen, Xiong Lu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 507, P. 160393 - 160393

Published: Feb. 7, 2025

Language: Английский

Citations

7
Recent advances and challenges of double-atom catalysts in diverse environmental applications: A state-of-the-art review DOI
Tong Hu, Wenjun Zhou,

Wangwang Tang

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 532, P. 216545 - 216545

Published: Feb. 19, 2025

Language: Английский

Citations

2
Subnanometric Nickel Phosphide Heteroclusters with Highly Active Niδ+–Pδ− Pairs for Nitrate Reduction toward Ammonia DOI
Qi Hu, Chunyan Shang, Xinbao Chen

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

The development of efficient electrocatalysts for the neutral nitrate reduction reaction (NO3–RR) toward ammonia (NH3) is essential to address environmental issues caused by NO3– but remains considerably challenging owing sluggish kinetics NO3–RR in media. Herein, we report subnanometric heteroclusters with strongly coupled nickel–phosphorus (Ni–P) dual-active sites as boost NO3–RR. Experimental and theoretical results reveal that feature Ni–P promotes electron transfer from Ni P, generating Niδ+–Pδ− active pairs, which Niδ+ species are highly Pδ− tunes interfacial water hydrogen bonding network promote dissociation step accelerate proton during Consequently, NO3–RR, exhibit a large NH3 yield rate 0.61 mmol h–1 cm–2 at −0.8 V versus reversible electrode, 2.8- 3.3-fold larger than those on nanoparticles clusters, respectively, generated exists NH4+ electrolytes. This study offers an approach boosting electrocatalytic reactions multiple intermediates designing sites.

Language: Английский

Citations

2
Metal-organic framework-derived diatomic catalysts for environmental remediation: Synthesis, applications and improvement strategies DOI
Tong Hu, Wenjun Zhou,

Wangwang Tang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 526, P. 216357 - 216357

Published: Nov. 29, 2024

Language: Английский

Citations

14
Balancing Electronic Spin State via Atomically-Dispersed Heteronuclear Fe–Co Pairs for High-Performance Sodium–Sulfur Batteries DOI
Canhuang Li, Jing Yu, Dawei Yang

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Room-temperature sodium–sulfur (Na–S) batteries are emerging as a promising next-generation energy storage technology, offering high densities at low cost and utilizing abundant elements. However, their practical application is hindered by the shuttle effect of sodium-polysulfides sluggish kinetics sulfur redox reactions. In this study, we demonstrate heteronuclear diatomic catalyst featuring Fe Co bimetallic sites embedded in nitrogen-doped hollow carbon nanospheres (Fe–Co/NC) an effective host cathode Na–S batteries. Aberration-corrected high-angle annular dark field scanning transmission electron microscopy demonstrates presence isolated Fe–Co atomic pairs, while synchrotron radiation X-ray absorption fine structure analysis confirms (Fe–Co–N6) coordination structure. Density functional theory calculations show that introduction atoms induces delocalization Co(II), shifting electronic configuration from low-spin to higher-spin state. This shift enhances hybridization dz2 orbitals with antibonding π within sodium sulfide species accelerates catalytic conversion. As result, Fe–Co/NC-based cathodes exhibit excellent cycling stability (378 mAh g–1 after 2000 cycles) impressive rate performance (341.1 under 5 A g–1).

Language: Английский

Citations

1
Tailoring asymmetric RuCu dual-atom electrocatalyst toward ammonia synthesis from nitrate DOI Creative Commons
Kaiyuan Liu,

Zhiyi Sun,

Xingjie Peng

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 4, 2025

Atomically dispersed Ru-Cu dual-atom catalysts (DACs) with asymmetric coordination are critical for sustainable ammonia production via electrochemical nitrate reduction (NO3RR), but their rational synthesis remains challenging. Here, we report a pulsed discharge strategy that injects microsecond pulse current into ruthenium (Ru) and copper (Cu) precursors supported by nitrogen-doped graphene aerogels (NGA). The atomically Ru Cu dual atoms anchor onto nanopore defects of NGA (RuCu DAs/NGA) through explosive decomposition the metal salt nanocrystals. catalyst achieves 95.7% Faraday efficiency 3.1 mg h-1 cm-2 NH3 yield at -0.4 V vs. RHE. In situ studies reveal an RuN2-CuN3 active-site dynamic evolution during NO3RR. Density functional theory calculations demonstrate RuN2CuN3/C structure synergistically optimizes intermediate adsorption reduces energy barriers key steps. enables ultrafast various DACs (e.g., PtCu, AgCu, PdCu, FeCu, CoCu, NiCu) tailored environments, offering general-purpose precise preparation catalysts, which traditionally challenging to synthesize.

Language: Английский

Citations

1
Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis DOI Open Access
Mengyu Chen, Jingqi Guan

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Language: Английский

Citations

1
2D Catalysts for Electrocatalytic Nitrate Reduction and C–N Coupling Reactions DOI Open Access

Zichao Xi,

Huanyu Jin, Qiao Chen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Abstract Powering the electrochemical nitrate reduction reaction (NO 3 ⁻RR) by renewable energy is a sustainable way to restore environment and produce nitrogen–hydrogen compounds. However, process requires multiple electron transfers complex paths, making it essential understand mechanisms at molecular level. In this regard, 2D materials attract significant interest due their large surface area, tunable electronic structures, suitability as model catalysts for studying structure–activity relationships. Advances in use of electrocatalytic NO ⁻RR C–N coupling reactions are analyzed elucidated influence various catalyst design strategies on mechanisms. Using advanced situ/operando measurement techniques, conducting rigorous theoretical analyses, scaling up industrial electrolyzers pivotal unlocking practical potential beyond. A map developing next‐generation electrocatalysts devices provided enable efficient nitrogen cycle using electrocatalysis.

Language: Английский

Citations

1
Recent Breakthroughs in Electrocatalytic Reduction of Nitrogen-Oxyanions for Environmentally Benign Ammonia Synthesis DOI
Minghang Jiang, Xiaochuan Huang, Dan Luo

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110683 - 110683

Published: Jan. 1, 2025

Language: Английский

Citations

0
Alloy Catalysts for Electrochemical Nitrate Reduction to Ammonia DOI Creative Commons
Rong Zhang, Xintao Ma, Shaoce Zhang

et al.

ChemElectroChem, Journal Year: 2025, Volume and Issue: 12(4)

Published: Jan. 31, 2025

Abstract Electrochemical nitrate reduction reaction (NO 3 − RR) represents a promising ammonia (NH ) production approach and has garnered significant attention in recent years. Owing to the highly tunable electronic structures physicochemical properties, alloy materials have emerged as efficient catalysts for electrochemical NO RR. This review systematically examines advancements including binary alloys multi‐metal RR, comprehensively analyzing their structure, catalytic activity, mechanisms In addition, relationship between catalysts′ composition, active sites, activity are described, aiming elucidate underlying principles high guide rational design of future catalysts. Finally, this addresses challenges proposes directions research development.

Language: Английский

Citations

0