Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162682 - 162682
Published: Feb. 1, 2025
Language: Английский
Citations
5Advanced 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
1Small, 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
1AIChE 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 ZnNO − 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
7Small, 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
0Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161855 - 161855
Published: March 1, 2025
Language: Английский
Citations
0Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137543 - 137543
Published: April 1, 2025
Language: Английский
Citations
0Catalysts, 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
0Arabian 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
3Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Citations
0