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

Unveiling the Reaction Mechanism of Nitrate Reduction to Ammonia Over Cobalt-Based Electrocatalysts DOI

Kaiwen Yang,

Shuhe Han, Chuanqi Cheng

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(19), P. 12976 - 12983

Published: April 3, 2024

Electrocatalytic reduction of nitrate to ammonia (NRA) has emerged as an alternative strategy for sewage treatment and generation. Despite excellent performances having been achieved over cobalt-based electrocatalysts, the reaction mechanism well veritable active species across a wide potential range are still full controversy. Here, we adopt CoP, Co, Co3O4 model materials solve these issues. CoP evolves into core@shell structured CoP@Co before NRA. For Co catalysts, three-step relay is carried out superficial dynamical Coδ+ under low overpotential, while continuous hydrogenation from unveiled high overpotential. In comparison, stable steadily catalyze range. As result, exhibit much higher NRA activity than especially Moreover, performance although they experience same mechanism. A series characterizations clarify reason enhancement highlighting that core donates abundant electrons species, leading generation more hydrogen nitrogen-containing intermediates.

Language: Английский

Citations

73
π‐d Conjugated Copper Chloranilate with Distorted Cu‐O4 Site for Efficient Electrocatalytic Ammonia Production DOI
Chengyong Xing, Jiali Ren, Longlong Fan

et al.

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

Published: July 9, 2024

Abstract Understanding the relationship between electrocatalytic performance and local structure at molecular level is of great significance. Herein, a bifunctional electrocatalyst CuCA (CA = chloranilate) constructed for both nitrogen reduction reaction (NRR) nitrate (NO 3 RR). Combined structural analyses using Rietveld refinement, extended X‐ray adsorption fine (EXAFS), pair distribution function (PDF) revealed significant distortion Cu‐O 4 structure. Benefitting from unique structure, Cu‐CA shows an impressive NH yield rate 286.00 ug h −1 mg (FE 18.25%, ‐0.85 V vs RHE), 3180.00 90.3%, ‐0.9 RHE) NRR NO RR, respectively. In contrast, pyrazine (Pyz) decorated compound Cu‐CA‐Pyz with less distorted fewer active sites show much lower activity. Density functional theory (DFT) calculations shed light on that nature can effectively regulate electron density distribution, which energy barrier activation intermediate species, leading to enhanced These findings may give new insight into structural‐property open up opportunities exploration efficient electrocatalysts.

Language: Английский

Citations

21
通过镧掺杂调控提升电子缺陷型Co3O4的硝酸盐电还原制氨效率 DOI Creative Commons
Xun He, Ting Xie, Kai Dong

et al.

Science China Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 30, 2024

Electrocatalytic reduction of nitrate (NO3−) can efficiently transform NO3− into ammonia (NH3), enabling the simultaneous removal pollutant from wastewater and production NH3. Here, we report use rare-earth lanthanum-doped Co3O4 nanowires array on carbon cloth (La-Co3O4/CC) as an efficient electrocatalyst for conversion to The as-synthesized La-Co3O4/CC demonstrates a remarkable NH3 Faradaic efficiency (96.36%) yield (537.44 µmol h−1 cm−2), markedly surpassing its counterpart (87.78%, 279.4 cm−2). Theoretical computations unveil that incorporation La doping promotes adsorption optimizes hydrogenation process, thus enhancing electroreduction activity in selectivity. Furthermore, Zn–NO3− battery incorporating achieved peak power density 9.86 mW cm−2. This work advances application Co3O4-based electrodes electrocatalysis highlights effectiveness rare earth element reactions.

Language: Английский

Citations

18
Multivalent Cu sites synergistically adjust carbonaceous intermediates adsorption for electrocatalytic ethanol production DOI Creative Commons
Xiao Chen, Shuaiqiang Jia,

Jianxin Zhai

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Sept. 3, 2024

Language: Английский

Citations

17
Hollow Square Ni-Doped Copper Oxide Catalyst Boosting Electrocatalytic Nitrate Reduction DOI
Yi Li, Jinshan Wei,

Hexing Lin

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(3), P. 1672 - 1683

Published: Jan. 16, 2025

The electrochemical nitrate reduction reaction to ammonia (NRA) is gaining increasing attention as an eco-friendly approach convert harmful pollutants into high-value product ammonia. NRA involves two critical rate-determining steps: hydrogenation of the *NO and *NOH intermediates. composite Ni Cu has been demonstrated exhibit synergistic catalytic effects; however, research on combination CuO remains limited. Herein, advanced Ni-doped copper oxide catalyst with a hollow square morphology (Ni–CuO) reported Faradaic efficiency 95.26% at −0.8 V vs RHE high yield rate 0.94 mmol h–1 cm–2, demonstrating selectivity stability. Complementary analyses that active hydrogen generated sites facilitates *NOx adsorbed sites. Theoretical computations further confirm thermodynamic viability this bimetallic mechanism. Furthermore, Al–NO3– battery open-circuit voltage was constructed by using Ni–CuO cathode. This work presents synergistically modulated for complex processes introduces highly efficient capable simultaneous NH3 synthesis electrical energy conversion, underscoring its potential in catalysis development chemical industries.

Language: Английский

Citations

6
Periodic Adjacent Pd‐Fe Pair Sites for Enhanced Nitrate Electroreduction to Ammonia via Accelerating Proton Relay DOI
Meng Xie, Guihua Zhu, Haoyu Yang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(33)

Published: May 29, 2024

Abstract Recently, bimetallic nanoparticles (NPs) are promising for driving nitrate (NO 3 − ) reduction reaction RR) to produce ammonia (NH due their multiple active sites and electron redistribution via strong metal–metal interaction. However, the quantitatively determining atomic configuration of revealing respective roles in NO RR process still challenged. Herein, atomically ordered PdFe L1 2 intermetallic NPs into mesoporous carbon nanofibers (O‐PdFe ‐mCNFs) is reported as an efficient catalyst NH synthesis. Compared face‐centered cubic one, O‐PdFe ‐mCNFs demonstrate a high removal 98.3% within 270 min with large yield rate 1014.2 µmol h −1 cm −2 . The detailed situ theoretical analysis reveals that performance attributed synergetic effect from periodic adjacent Pd‐Fe pair at (110) facet accelerating proton relay, where Fe show preferable stabilization nitrogen−oxygen (*NO) intermediates while Pd serve reservoir *NO hydrogenation. Moreover, d ‐ orbital hybridization tunes ‐band center alloy effectively modulates adsorption energy *NO. This electrocatalyst design offers new avenue developing highly multifunctional catalysts.

Language: Английский

Citations

14
Boron Regulated Fe Single-Atom Structures for Electrocatalytic Nitrate Reduction to Ammonia DOI

Xihui Lu,

Jinshan Wei,

Hexing Lin

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(12), P. 14654 - 14664

Published: June 13, 2024

Electrocatalytic reduction of nitrate (NO3RR) to ammonia offers a promising approach for mitigating the environmental impact NO3–, while simultaneously enabling synthesis NH3 under ambient conditions. Recently, single-atom catalysts (SACs) have been proven attractive activity on NO3RR, and better with enhanced stability are still in demand. Here, we report efficient boosting production via NO3RR using boron-doped Fe SAC (Fe-BCN). Fe-BCN is normal 12-hedral nanoparticle size 500 nm. The Faradaic efficiency reached 97.48%, high rate 2.17 mg cm–2 h–1, an alkaline electrolyte environment at electrode potential −0.3 V vs reversible hydrogen electrode. Density functional theory calculations revealed strategy introduced B regulating intermediate adsorption Fe-BCN, which activity. Furthermore, leveraging nitrate-zinc battery power density 0.90 mW was constructed by as cathode zinc anode, respectively. This research demonstrates broad prospects provides insights high-performance materials.

Language: Английский

Citations

11
Microenvironment Engineering of Heterogeneous Catalysts for Liquid-Phase Environmental Catalysis DOI

Zhong‐Shuai Zhu,

Shuang Zhong, Cheng Cheng

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(20), P. 11348 - 11434

Published: Oct. 9, 2024

Environmental catalysis has emerged as a scientific frontier in mitigating water pollution and advancing circular chemistry reaction microenvironment significantly influences the catalytic performance efficiency. This review delves into engineering within liquid-phase environmental catalysis, categorizing microenvironments four scales: atom/molecule-level modulation, nano/microscale-confined structures, interface surface regulation, external field effects. Each category is analyzed for its unique characteristics merits, emphasizing potential to enhance efficiency selectivity. Following this overview, we introduced recent advancements advanced material system design promote (e.g., purification, transformation value-added products, green synthesis), leveraging state-of-the-art technologies. These discussions showcase was applied different reactions fine-tune regimes improve from both thermodynamics kinetics perspectives. Lastly, discussed challenges future directions engineering. underscores of intelligent materials drive development more effective sustainable solutions decontamination.

Language: Английский

Citations

11
Co nanoparticle-decorated radix cynanchi daniculati-derived carbon for efficient electrocatalytic nitrite reduction to ammonia DOI

MA Cheng-liang,

Bao Li,

Xiaoya Fan

et al.

Catalysis Science & Technology, Journal Year: 2024, Volume and Issue: 14(11), P. 3007 - 3011

Published: Jan. 1, 2024

As an efficient catalyst for NH 3 production via NO 2 − reduction, Co nanoparticles decorated radix cynanchi paniculati-derived carbon exhibits a high faradaic efficiency of 92.77% with yield 1235.62 μmol h −1 cm −2 at −0.8 V.

Language: Английский

Citations

8
A new polymer with rich carbonyl delocalized π-conjugated structure for high-performance aqueous zinc ion batteries DOI

Xinyu Gao,

Yongwen Wang,

Yigang Xiao

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 604 - 614

Published: Jan. 21, 2025

Language: Английский

Citations

1