Science China Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 28, 2024
Language: Английский
Science China Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 28, 2024
Language: Английский
Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110861 - 110861
Published: Jan. 1, 2025
Language: Английский
Citations
14Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
The construction of coupled electrolysis systems utilizing renewable energy sources for electrocatalytic nitrate reduction and sulfion oxidation reactions (NO3RR SOR), is considered a promising approach environmental remediation, ammonia production, sulfur recovery. Here, simple chemical dealloying method reported to fabricate hierarchical porous multi-metallic spinel MFe2O4 (M═Ni, Co, Fe, Mn) dual-functional electrocatalysts consisting Mn-doped NiFe2O4/CoFe2O4 heterostructure networks Ni/Co/Mn co-doped Fe3O4 nanosheet networks. excellent NO3RR with high NH3 Faradaic efficiency 95.2% at -0.80 V versus reversible hydrogen electrode (vs RHE) yield rate 608.9 µmol h-1 cm-2 -1.60 vs RHE, impressive SOR performance (100 mA [email protected] achieved MFe2O4. Key intermediates such as *NO, *NH2, are identified in the process by situ Fourier transform infrared spectroscopy (in FTIR). MFe2O4-assembled two-electrode coupling system (NO3RR||SOR) shows an ultra-low cell voltage 1.14 10 cm-2, much lower than NO3RR||OER (oxygen evolution reaction, [email protected] V), simultaneously achieving two expected targets value-added generation recovery, also demonstrating durability 18 h. This work demonstrates great potential ferrite-based catalysts remediation.
Language: Английский
Citations
5EcoEnergy, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 10, 2024
Abstract Seawater splitting is one of the desirable techniques for producing green hydrogen from vast natural resource. Several reports about designing and fabricating efficient electrocatalysts to boost oxygen evolution reaction have been published. However, they mainly focus on electrodes, electrocatalysts, cost, system stability. This article presents an overview seawater by highlighting most challenging issues that complicate electrolysis, such as durability, guide future research in this important area. The strategy launch life cycle assessments described evaluate short long‐term impacts. Finally, current challenges prospective solutions are discussed.
Language: Английский
Citations
5Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 680, P. 214 - 223
Published: Nov. 16, 2024
Language: Английский
Citations
5Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 26, 2024
An efficient nanoscale Ni-based catalyst enabled the energy-efficient coupling of HzOR with CO 2 RR for production.
Language: Английский
Citations
5Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 24, 2025
Language: Английский
Citations
0Small, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 26, 2025
Abstract Seawater electrocatalysis is urgently needed for various energy storage and conversion systems. However, the adsorption of chloride ions (Cl − ) to active sites can degrade oxygen reduction reaction (ORR) activity stability, thus reducing catalytic performance. In this paper, a curved FeN 4 single atomic structure designed by utilizing curvature engineering, which turns harmful Cl into benefit on Fe site that changes rate determining step ORR reduces overall barrier according density functional theory (DFT) calculation. Experimental studies reveal prepared highly‐curved single‐atom iron catalyst (HC‐Fe SA exhibits excellent in different electrolytes, with half‐wave potentials 0.90 V 0.1 M KOH, simulated seawater, 0.75 natural respectively. This work opens up an avenue synthesis high‐performance seawater‐based catalysts through regulating local curvature.
Language: Английский
Citations
0Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161736 - 161736
Published: March 1, 2025
Language: Английский
Citations
0ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: April 10, 2025
The predominant product of CO electroreduction (COER) is often acetate, with the Faradaic efficiency (FE) for ethanol usually falling below 50%. Herein, we propose a unique strategy to enhance selectivity in COER, shifting it from acetate predominance toward generation via alloying atomic manganese (Mn) atoms face-centered cubic (FCC) copper (Cu) catalyst. By optimizing ratio Mn Cu, observe an impressive enhancement 8.8-fold ethanol-to-acetate FE optimal Mn3Cu97 alloy compared unalloyed FCC-phase Cu. demonstrates remarkable nearly 70% at high current density 600 mA cm-2 membrane electrode assembly electrolyzer. Further theoretical analysis reveals that atomically dispersed generate synergistic active sites and modulate adsorption strength critical intermediates relevant synthesis, thereby facilitating transition pathway pathway.
Language: Английский
Citations
0