Chloride doping of Co4S3 via methanol solvothermal synthesis for enhanced electrocatalytic nitrate reduction to ammonia DOI

Shuoshuo Feng,

Xufeng Rao, Xiaoyu Chen

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

Convenient preparation of Ni-Fe layered double hydroxide nanosheets on Co3O4 hollow cube for Monitoring the environmental pollutant Nitrobenzene DOI
Yan‐Jun Liu,

Lin Hao,

Huizhong Ma

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162682 - 162682

Published: Feb. 1, 2025

Language: Английский

Citations

5

Electro‐Reconstructed Transition Metal Electrodes for Coupled‐Upgrading of Nitrate Pollution and Waste Poly(Ethylene Terephthalate) Plastics DOI Open Access
Haoye Wang, Bowen Yang, Richard L. Smith

et al.

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

Published: Jan. 28, 2025

Abstract Two unrelated forms of pollution, nitrate‐containing wastewater and waste poly(ethylene terephthalate) (PET) plastics, can be converted into high‐value chemicals by electrochemical reduction oxidation reactions. Herein, coupled electrocatalysis is used for the co‐production ammonia (NH 3 ) formic acid (FA) with a cathode formed reconstructing Co on copper foam (R‐Co/CF) as catalyst nitrate reaction (NO RR) an anode NiCo nickel (R‐NiCo/NF) ethylene glycol (EGOR). The Faraday efficiency R‐Co/CF 96.2% that R‐NiCo/NF catalysts 98.2%. By coupling NO RR PET hydrolysate reaction, cell voltage required at current density 50 mA cm −2 202 mV lower than traditional electrolytic system, indicating electrocatalytic upcycling plastics energy‐saving cost‐effective strategy producing value‐added chemicals. Techno‐economic analysis indicates compared RR//OER RR//PET system save 2.8 × 10 kW h −1 in electricity generate ≈6 900 USD revenue per tonne NH .

Language: Английский

Citations

1

Enhanced Activity and Stability for Electrocatalytic Nitrate Reduction to Ammonia over Low‐Coordinated Cobalt DOI Open Access

Wanping Sun,

Ying Xu, Yang Li

et al.

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

Published: Jan. 31, 2025

It is still challenging to develop an effective strategy simultaneously enhance the activity and stability of electrocatalysts for electrocatalytic nitrate reduction reaction (eNO3RR). Herein, taking metallic cobalt as example, it demonstrated that construction low-coordinated nanosheets (L-Co NSs) by H2 plasma etching electrodeposited (Co can greatly eNO3RR. Compared with Co NSs, at -0.4 V versus RHE, removal rate, ammonia partial current density, yield are increased L-Co NSs from 82.14% 98.57%, 476 683 mA cm-2, 2.11 2.54 mmol h-1 respectively. In addition, demonstrate negligible decay after 30 cycles test, while show significant decline. situ electrochemical characterizations theoretical calculations verify abundance vacancies in not only contribute optimized electronic structure enhanced desorption key intermediate boost but also facilitate transformation Co(OH)2 Co0 promote stability. Furthermore, exhibit favorable performance removing simulated wastewater air discharge-electrocatalytic cascade system produce ammonia.

Language: Английский

Citations

1

Bimetal anchoring porous MXene nanosheets for driving tandem catalytic high‐efficiency electrochemical nitrate reduction DOI

Rongyu Guo,

Zhijie Cui,

Tianyang Yu

et al.

AIChE Journal, Journal Year: 2024, Volume and Issue: 71(2)

Published: Oct. 17, 2024

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) is considered a promising strategy for ammonia synthesis and removal, in which catalyst development crucial. Herein, series of bimetal (Co Cu) anchoring porous MXene nanosheets x Cu y @PM) catalysts were prepared by combining etching strategy. On the one hand, Co bimetals provided tandem catalytic active sites NO RR. other in‐plane PM exhibited good electrical conductivity multiple transport pathways. Consequently, optimized 7 @PM achieved high yield 7.43 mg h −1 cat. an excellent Faraday efficiency (FE) 95.9%. The mechanism RR was investigated analyzing electrolysis products situ Fourier transform infrared spectroscopy. Furthermore, based ZnNO − battery superior power density 5.59 mW cm −2 NH FE 92.3%. This work presents effective to design MXene‐based high‐performance electrocatalysts.

Language: Английский

Citations

7

Heteroatom Introduction and Electrochemical Reconstruction on Heterostructured Co‐Based Electrocatalysts for Hydrogenation of Quinolines DOI Open Access
Zhefei Zhao, Wenjie Yan, Wenbin Zheng

et al.

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

Published: March 13, 2025

Abstract Electrocatalytic hydrogenation (ECH) of quinoline provides an eco‐friendly and prospective route to achieve the highly value‐added generation 1,2,3,4‐tetrahydroquinoline (THQ). Co element has been proven be efficient catalytic site for ECH quinoline, but rational regulation electronic structure active improve activity is still a challenge. Herein, hierarchical core–shell consisting NiCo‐MOF nanosheets encapsulated Cu(OH) 2 nanorods (Cu(OH) @CoNi‐MOF) constructed. The heterojunction promotes transfer interfacial charge optimizes site. introduction Ni significantly increases binding between Cu, preventing exfoliation sites from core, reducing reaction energy barrier rate‐determining step, thus resulting in superior reactivity durability. Besides, electrochemical reconstruction further modulates by forming multi‐metallic compound with low valence state (NiCoCu), achieving optimal performance conversion 99.5% THQ selectivity 100%. A flow‐cell system assembled, demonstrating prospect industrial application.

Language: Английский

Citations

0

Waste to treasure: Self-powered electrocatalytic upgrading of nitrite and PET plastic wastes into value-added ammonia and formic acid over core–shell Ru-Co3O4 heterojunctions DOI
Xinzhi Wang, Lunhong Ai, Qiaoshi Zeng

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161855 - 161855

Published: March 1, 2025

Language: Английский

Citations

0

Vanadium-Modulated Molybdenum/Nickel-Based Multi-Heterostructures finely tailoring d-Band centers for electrocatalytic water splitting DOI

Guimin Wang,

Xueting Li,

J J Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137543 - 137543

Published: April 1, 2025

Language: Английский

Citations

0

Cobalt-Decorated Carbonized Wood as an Efficient Electrocatalyst for Water Splitting DOI Open Access

Zichen Cheng,

Zekun Li,

Huang Shou

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(5), P. 503 - 503

Published: May 21, 2025

The efficient mass transport and enhanced accessibility of active sites are crucial for high-performance electrocatalysts in water splitting. Inspired by the hierarchical structure natural wood, we engineered a monolithic electrocatalyst, cobalt nanoparticles encapsulated nitrogen-doped carbon layers on carbonized wood (Co@NC/CW), carbonizing to create three-dimensional framework with vertically aligned macropores. unique architecture encapsulates within situ-grown graphene wood-derived microchannels, facilitating ultrafast electrolyte infusion anisotropic electron transport. As result, optimized freestanding Co@NC/CW electrode exhibits remarkable bifunctional activity, achieving overpotentials 403 mV 227 oxygen evolution reaction (OER) hydrogen (HER), respectively, at current density 50 mA cm−2. Furthermore, integrated hybrid electrolyzer combining HER OER delivers an impressive A cm−2 cell voltage 1.72 V while maintaining Faradaic efficiency near 99.5% sustaining long-term stability over 120 h continuous operation. also demonstrates performance complete decomposition alkaline seawater, underscoring its potential scalable applications. This catalyst design not only leverages porosity but offers sustainable platform advanced electrochemical systems.

Language: Английский

Citations

0

Emerging electrocatalysts for green ammonia production: Recent progress and future outlook DOI Creative Commons
Sajid Mahmood, Shahid Iqbal,

Zeping Wang

et al.

Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(10), P. 105950 - 105950

Published: Aug. 7, 2024

In the Haber-Bosch process (HBp), which uses elevated pressure and temperature to produce more concentration of nitrogen hydrogen gases, 90% 175 million metric tons NH3 generated worldwide in 2016 were manufactured this process. According road plan for sustainable ammonia production sustainably, using water as a reducing agent is most effective way fix close-quarters ambiance. A complete explanation theoretical practical work on electrocatalytic reduction provided article, with special attention paid low selectivity comparison protons hydrogen. Since they are essential accurately achieving high Faradaic efficiency (FE), their information outlines electrocatalysts, electrolyte selection criteria, managed experiment design. Under diverse conditions, evolution theory examined. Finally, feedback given field's present issues prospects.

Language: Английский

Citations

3

Chloride doping of Co4S3 via methanol solvothermal synthesis for enhanced electrocatalytic nitrate reduction to ammonia DOI

Shuoshuo Feng,

Xufeng Rao, Xiaoyu Chen

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

Citations

0