Published: Jan. 1, 2024
Language: Английский
Journal of Power Sources, Journal Year: 2025, Volume and Issue: 641, P. 236839 - 236839
Published: March 24, 2025
Language: Английский
Citations
0
ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 22, 2025
Language: Английский
Citations
0
Chemical Communications, Journal Year: 2024, Volume and Issue: 60(58), P. 7397 - 7413
Published: Jan. 1, 2024
In recent years, there has been significant attention towards the development of catalysts that exhibit superior performance and environmentally friendly attributes. This surge in interest is driven by growing demands for energy utilization storage as well environmental preservation. Spin polarization plays a crucial role catalyst design, comprehension catalytic mechanisms, reaction control, offering novel insights design highly efficient catalysts. However, are still some research gaps current study spin catalysis. Therefore, it urgent to understand how impacts reactions develop Herein, we present comprehensive summary application Firstly, summarize fundamental mechanism from two aspects kinetics thermodynamics. Additionally, review regulation various applications several approaches modulate polarization. Moreover, discuss future catalysis propose potential avenues further progress. We aim improve systems through implementing distinctive engineering strategy.
Language: Английский
Citations
3
Physical Chemistry Chemical Physics, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
The relationship between electron spin and the fluorescence properties of phycocyanin is investigated using a novel experimental platform based on Janus-like magnetic particles.
Language: Английский
Citations
0
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Feb. 12, 2025
In modern chemistry, the development of highly efficient room-temperature catalysts is great significance and remains a long-standing challenge in various typical reactions. Here, we theoretically demonstrate that two-dimensional (2D) multiferroic, Cr(half-fluoropyrazine)2 [Cr(h-fpyz)2], promising single-atom catalyst (SAC) operating at room temperature for CO oxidation. The rate-limiting barrier merely 0.325 eV, leading to reaction rate (i.e., 3.47 × 106 s−1) six orders magnitude higher than its monoferroic derivative [Cr(pyz)2], due synergetic effects two aspects. First, more flexible ligand rotations Cr(h-fpyz)2 facilitate activation O2 molecule, simultaneously enhancing charge transfer spin-accommodation process. Second, on Cr(h-fpyz)2, adsorption induces distinctly lower local positive electric field, reducing electrostatic repulsion polar molecule. These findings may also pave way establishing SAC platforms based 2D multiferroics where multidegree freedom (e.g., spin, polarity) synergistically matter. Developing energy capable performing moderate temperatures an important goal. Here authors Cr(half-fluoropyrazine)2, acts as single atom oxidation temperature.
Language: Английский
Citations
0
ChemElectroChem, Journal Year: 2025, Volume and Issue: unknown
Published: March 30, 2025
In energy conversion technologies, the electron spin effect in catalysts plays a crucial role overcoming spin‐forbidden reactions, offering novel approach to overcome performance bottlenecks of catalysts. Recently, with breakthroughs magnetic field–enhanced catalysis and theoretical predictions, significant progress has been made design development this concept, several attractive inspiring catalyst strategies reported recently, particularly precise modulation states/spin interactions at catalytic sites through coordination modulation, spin‐pinning effect, chirality induction, radical adsorption, are outlined. The concept then explores advantages these enhancing activity/selectivity, investigating selectivity reaction pathways, expanding systems. Finally, proposes future directions for technologies.
Language: Английский
Citations
0
Chemical Science, Journal Year: 2024, Volume and Issue: 15(45), P. 18751 - 18771
Published: Jan. 1, 2024
This review highlights recent experimental findings related to the chirality-induced spin selectivity effect. effect is demonstrated explain asymmetric electron's transport in chiral molecules for various technological applications.
Language: Английский
Citations
2
Small, Journal Year: 2024, Volume and Issue: 20(48)
Published: Aug. 29, 2024
Abstract Superparamagnetic iron oxide nanoparticles (SPIONs) have attracted wide attention due to their promising applications in biomedicine, chemical catalysis, and magnetic memory devices. In this work, the force is measured between a single SPION coated with chiral molecules ferromagnetic substrate by atomic microscopy (AFM), magnetized either toward or away from approaching AFM tip. The depends on handedness of adsorbed direction magnetization substrate. By inserting nm‐scale spacing layers it shown that has short‐range monopole‐like field. A theoretical framework for nature field provided.
Language: Английский
Citations
1
Small, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 23, 2024
Abstract The exploration of a new conceptual strategy for improving the oxygen evolution reaction (OER) earth‐abundant electrocatalysts is critical. In this study, chiral copper oxide nanoflower explored by self‐assembly method. characterization suggests structure originates from crystal plane‐level helical stack secondary nanosheets. Of note, assembly illustrates record‐high degree spin polarization 96%, indicating ideal alignment electron spin. Moreover, density function theory calculations show reducing energy barrier (REB) while switching potential‐determining step *O→*OOH to *OH→*O. Together with enhanced electrochemical active surface area and accelerated charge transfer, production ground‐state triplet O 2 improved via spin‐forbidden route that involves singlet H O/OH•. Consequently, shows overpotential 308 mV at 10 mA cm −2 Tafel slope 93.5 dec −1 , which even superior commercial RuO (310 mV, 101 ). This study presents OER activity simultaneously enhancing electronic properties lowering REB an non‐noble electrocatalyst chirality engineering.
Language: Английский
Citations
1
Journal of Chemical Theory and Computation, Journal Year: 2024, Volume and Issue: 20(13), P. 5475 - 5486
Published: June 18, 2024
Chirality-induced spin selectivity (CISS), which was demonstrated in several molecular and material systems, has drawn much interest recently. The phenomenon, described electron transport by the difference rate of electrons opposite spins through a chiral system, is however not fully understood. Herein, we employed density functional theory conjunction with spin–orbit coupling to evaluate percent spin-polarization device setup finite electrodes at zero bias, using an program developed in-house. To study interface effects level considered, investigated helical oligopeptide chain, intrinsically gold cluster, helicene model system that previously studied (Zöllner et al. J. Chem. Theory Comput. 2020, 16, 7357–7371). We find magnitude depends on system–electrode modeled varying boundary between system's regions, method calculating coupling, exchange–correlation functional, e.g., amount exact exchange hybrid functionals. In addition, assess employ nonequilibrium Green's function formalism Quantum Atomistix Toolkit program, showing spin-flip terms could be important CISS effect. Although understanding comparison experiment still resolved, our provides intrinsic responses from first-principles calculations.
Language: Английский
Citations
0