Cu²⁺-Dominated Chirality Transfer from Chiral Molecules to Concave Chiral Au Nanoparticles

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(15), С. 10640 - 10654

Опубликована: Апрель 3, 2024

Foreign ions as additives are of great significance for realizing excellent control over the morphology noble metal nanostructures in state-of-the-art seed-mediated growth method; however, they remain largely unexplored chiral synthesis. Here, we report on a Cu2+-dominated strategy that can direct concave Au nanoparticles with C3-dominant centers. The introduction trace amounts Cu2+ process is found to dominate chirality transfer from molecules nanoparticles, leading formation VC geometry. Both experimental and theoretical results further demonstrate correlation between nanoparticle structure optical nanoparticle. ion by selectively activating deposition atoms along [110] [111] directions, facilitating VC. We be employed generate variety enriched geometric desired chiroptical properties. Concave also exhibit appealing catalytic activity selectivity toward electrocatalytic oxidation enantiomers comparison helicoidal nanoparticles. ability tune controlled manner simply manipulating opens up promising creating nanomaterials increasing architectural diversity chirality-dependent applications.

Язык: Английский

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Shell Dependence of Highly Tunable Circular Dichroism in Chiral Hybrid Plasmonic Nanomaterials for Chiroptical Applications

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Chiral plasmonic nanomaterials with fascinating physical and chemical properties show emerging chirality-dependent applications in photonics, catalysis, sensing. The capability to precisely manipulate the chirality a broad spectral range plays crucial role enabling of chiral diverse complex scenarios; however, it remains challenge yet be addressed. Here we demonstrate strategy significantly enhance tunability circular dichroism (CD) spectra by constructing core-shell hybrid metal-semiconductor structures tailored shells. In typical case, Au@Cu

Язык: Английский

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Efficient separation of Pd(II) from HCl media by bifunctional thiomorpholinium‐based ionic liquids

AIChE Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

Abstract Bifunctional thiomorpholinium‐based ionic liquids were synthesized for the efficient separation of Pd(II) in HCl media. The presence S atoms six‐membered ring facilitated extraction Pd(II), with a remarkable capacity 212 mg/g. mechanism involved anion exchange and coordination. Specifically, PdCl 4 2− preferentially combined positive N thiomorpholinium through by electrostatic attraction, followed coordination functional sulfur atom to form stable extracted complex. In addition, effect carbon chain length cationic substituent on performance was systematically investigated further reveal structure–activity relationship. More importantly, , ‐dihexyl‐thiomorpholinium bis(trifluoromethylsulfonyl)imide exhibited excellent selectivity reusability, retaining 99.4% efficiency after five extraction‐stripping cycles. This study guides design liquids‐based extractants offers solvent‐free method environmentally friendly Pd(II).

Язык: Английский

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Boosting the Selectivity in Oxygen Electrocatalysis Using Chiral Nanoparticles as Electron-Spin Filters

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Апрель 11, 2025

Controlling the electron spin of oxygen-containing intermediates is crucial for efficient oxygen electrocatalysis toward clean energy technologies such as fuel cells and water electrolysis. Current strategies controlling spins rely mainly on tuning chemical structure electrocatalyst, which often hardly achieved metal oxide electrocatalysts. The chiral-induced selectivity (CISS) effect, a significant discovery in chiral spintronics, represents an alternative approach Here we demonstrate use intrinsic nanoparticles electron-spin filters to tune electrocatalytic reactions. Chiral Au with concave vortex cube were employed substrate, exhibiting highly tunable optical chirality intriguing CISS-like effect. As model systems, catalytically active components Pt or Ni(OH)2 are overgrown onto construct hybrid Remarkably, both cases show chirality-dependent activities over reduction/evolution reactions, respectively. insights gained from this work not only shed light underlying mechanisms dictating CISS-enhanced by but also provide important knowledge framework that guides rational design electrocatalysts electrocatalysis.

Язык: Английский

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Engineering Chirality of Transition Metal‐Based Nanomaterials for Enhanced Electrocatalysis

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Abstract Transition metal‐based chiral nanomaterials have emerged as a highly promising class of electrocatalysts, uniquely combining the intrinsic electrocatalytic activity transition metals with properties that arise specifically from chirality. In particular, chirality‐induced spin selectivity (CISS) effect, which modulates electron polarization, has provided powerful approach to controlling reaction pathways and enhancing catalytic performance. Substantial advances are achieved in both synthesis application these nanomaterials, leading improvements variety reactions. Nevertheless, deeper understanding formation mechanisms diverse structures mechanistic relationship between configurations improved performance is still needed. This review systematically examines synthetic strategies for constructing different structural features. An in‐depth discussion CISS effect its role wide range reactions then provided. Finally, current challenges assessed, offer perspectives on future research directions such leveraging machine learning‐assisted design advanced situ spectroscopy accelerate development chiral‐enabled, spin‐selective systems.

Язык: Английский

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Recent advances in multifunctional nanomaterials enhanced immunochromatographic assays

TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер unknown, С. 118013 - 118013

Опубликована: Окт. 1, 2024

Язык: Английский

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Amino acid-mediated chiral Ag@Au with circularly polarized light induced photothermal and photodynamic synergistic photocatalytic disinfection

Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153549 - 153549

Опубликована: Июнь 26, 2024

Язык: Английский

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Applications of Nanozymes in Chiral-Molecule Recognition through Electrochemical and Ultraviolet–Visible Analysis

Molecules, Год журнала: 2024, Номер 29(14), С. 3376 - 3376

Опубликована: Июль 18, 2024

Chiral molecules have similar physicochemical properties, which are different in terms of physiological activities and toxicities, rendering their differentiation recognition highly significant. Nanozymes, nanomaterials with inherent enzyme-like activities, garnered significant interest owing to high cost-effectiveness, enhanced stability, straightforward synthesis. However, constructing nanozymes activity enantioselectivity remains a challenge. This review briefly introduces the synthesis methods chiral systematically summarizes latest research progress enantioselective based on electrochemical ultraviolet–visible absorption spectroscopy. Moreover, challenges development trends developing discussed. It is expected that this will provide new ideas for design multifunctional broaden application field nanozymes.

Язык: Английский

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Core–Shell–Satellite Au@CeO₂–Pd Plasmonical Photocatalysts for Suzuki–Miyaura Coupling Reaction

Applied Organometallic Chemistry, Год журнала: 2024, Номер 39(3)

Опубликована: Ноя. 6, 2024

ABSTRACT Integration of localized surface plasmon resonance (LSPR) metallic nanocrystals into photocatalysis is an intriguing approach for light‐driven organic transformations. However, uncertain direction hot carriers a grand challenge, which fails to take full advantage the LSPR excitation. In this work, core–shell gold@ceria nanosphere–supported segregated palladium species (Au@CeO 2 –Pd) have developed steer light absorption capability and charge carrier migration. Under simulated solar irradiation, core–shell–satellite Au@CeO –Pd exhibited efficient harvesting colossal activity in Suzuki coupling reaction. The plasmon‐induced electrons overpassed Schottky barrier at interfaces migrated from Au core CeO shell accordingly. Subsequently, photogenerated core–shells Pd, acted as electron acceptor. Detailed photocatalytic mechanism studies revealed that both photoexcited holes were main active involved reaction process. particular, diphenyl yield over catalyst was ~1.7 times higher than Au@SiO –Pd, where 19‐nm‐thick SiO introduced prevent migration electrons. This distinctly certified transfer under illumination played important role drive Overall, design plasmonic photocatalyst has potential field photo‐driven

Язык: Английский

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Amino acid-induced synthesis of chiral AgAuPt nanoparticles with branched structure for circularly polarized enantioselective photoelectrocatalytic water splitting

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 675, С. 74 - 83

Опубликована: Июль 2, 2024

Язык: Английский

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