The paradox of thermal vs. non-thermal effects in plasmonic photocatalysis

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Sept. 12, 2024

The debate surrounding the roles of thermal and non-thermal pathways in plasmonic catalysis has captured attention researchers sparked vibrant discussions within scientific community. In this review, we embark on a thorough exploration intriguing discourse, starting from fundamental principles culminating detailed understanding divergent viewpoints. We probe into core by elucidating behavior excited charge carriers illuminated nanostructures, which serves as foundation for two opposing schools thought. present key arguments evidence put forth proponents both pathways, providing perspective their respective positions. Beyond theoretical divide, discussed evolving methodologies used to unravel these mechanisms. discuss use Arrhenius equations variations, shedding light ensuing debates about applicability. Our review emphasizes significance localized surface plasmon resonance (LSPR), investigating its role collective oscillations decay dynamics that influence catalytic processes. also talked nuances activation energy, exploring relationship with nonlinearity temperature intensity dependence reaction rates. Additionally, address intricacies catalyst measurements implications light-triggered dynamics. further discusses wavelength-dependent rates, kinetic isotope effects, competitive electron transfer reactions, offering an all-inclusive view field. This not only maps current landscape photocatalysis but facilitates future explorations innovations unlock full potential plasmon-mediated catalysis, where synergistic approaches could lead different vistas chemical transformations.

Language: Английский

---

Polymer Wrapping Improves Photocatalytic Hydrogen Evolution

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

Published: April 17, 2025

Abstract Photoelectronic and photothermal effects are two major that can promote the performance of photocatalysis. Developing a simple versatile method to utilize these largely photocatalysts. In this study, feasible polymer wrapping strategy is proposed improve catalytic activity stability photocatalysts in HER. The PMMA‐wrapped Pt/g‐C 3 N 4 demonstrates high HER rate 8.84 mmol g −1 h , which 1.5 folds unwrapped . Both experimental results theoretical calculations demonstrate PMMA not only improves light absorption but also enhances charge separation local heating. Notably, effect significantly enhanced after wrapping, dominating catalysis enhancement. More importantly, highly be applied various photocatalytic systems. Overall, work provides practical approach for designing fabricating efficient photocatalysts, may extended many other photocatalysis

Language: Английский

---

Progress in Cu‐Based Catalyst Design for Sustained Electrocatalytic CO₂ to C₂₊ Conversion

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract The electrocatalytic conversion of CO 2 into valuable multi‐carbon (C 2+ ) products using Cu‐based catalysts has attracted significant attention. This review provides a comprehensive overview recent advances in catalyst design to improve C selectivity and operational stability. It begins with an analysis the fundamental reaction pathways for formation, encompassing both established emerging mechanisms, which offer critical insights design. In situ techniques, essential validating these by real‐time observation intermediates material evolution, are also introduced. A key focus this is placed on how enhance through manipulation, particularly emphasizing catalytic site construction promote C─C coupling via increasing * coverage optimizing protonation. Additionally, challenge maintaining activity under conditions discussed, highlighting reduction active charged Cu species materials reconstruction as major obstacles. To address these, describes strategies preserve sites control including novel utilization mitigation reconstruction. By presenting developments challenges ahead, aims guide future conversion.

Language: Английский

---

Uncovering the Role of Direct Electron Transfer in Plasmon-Mediated Electrochemical Reactions

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

The mechanism of the charge and energy flow at metal-molecule interface has attracted much attention, especially with recent rise plasmonic nanomaterials for light-to-chemical conversion. Although numerous studies have demonstrated irreplaceable effects energetic electrons on accelerating chemical reactions, detangling direct electron transfer (DET) from indirect (IET) understanding their roles are still challenging. Here, by combining electrochemical dark field scattering spectroscopy, photoelectrochemical method, density functional theory calculation, we provided evidence DET during alongside decoupling contributions IET, then established relationship between reactivity efficiency. Moreover, discovered that is selective different e.g., enhancing oxygen reduction reaction more than hydrogen evolution reaction. This work offers possibility to optimize selectivity via advances mechanistic insights into transfer.

Language: Английский

---

Plasma-activated 2D CuMnO2 nanosheet catalysts with rich oxygen vacancies for efficient CO2 electroreduction

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125255 - 125255

Published: March 1, 2025

Language: Английский

---

A review on plasmonic enhancement of activity and selectivity in electrocatalytic CO2 reduction

Frontiers in Energy, Journal Year: 2024, Volume and Issue: 18(4), P. 399 - 417

Published: July 10, 2024

Language: Английский

---

Unveiling co-acting effects of potassium and hydroxide ions on carbon dioxide reduction reaction selectivity

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 591 - 599

Published: Feb. 26, 2025

Language: Английский

---

Efficient photoelectrocatalytic simultaneous removal of antibiotic and Cr(VI) upon novel ternary plasma Ag/AgVO3@3D TiO2: Insight into the synergistic mechanism of redox

Chemosphere, Journal Year: 2025, Volume and Issue: 376, P. 144312 - 144312

Published: March 16, 2025

Language: Английский

---

Fe‐Doped Ni‐Phytate/Carbon Nanotube Hybrids Integrating Activated Lattice Oxygen Participation and Enhanced Photothermal Effect for Highly Efficient Oxygen Evolution Reaction Electrocatalyst

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

Published: April 26, 2025

Abstract Developing highly efficient oxygen evolution reaction (OER) electrocatalysts is critical for hydrogen production through electrocatalytic water splitting, yet it remains a significant challenge. In this study, novel OER electrocatalyst, Fe‐doped Ni‐phytate supported on carbon nanotubes (NiFe‐phy/CNT), which simultaneously follows lattice mechanism (LOM) and exhibits photothermal effect, synthesized facile scalable co‐precipitation method. Experimental results combined with theoretical calculations indicate that introducing Fe can facilitate the structural reconstruction of NiFe‐phy/CNT to form active NiFe oxyhydroxides, switch pathway LOM from adsorbate mechanism, reinforce effect counterbalance enthalpy change during process while reducing its activation energy. Therefore, under near‐infrared light irradiation, demonstrates exceptional activity, featuring low overpotentials 237, 275, 286 mV at 100, 500, 1000 mA cm −2 , respectively. Moreover, electrocatalyst capability large‐scale synthesis be stored over 120 days negligible decrease in activity. This work presents conceptual approach integrate redox chemistry designing electrocatalysts.

Language: Английский

---

Realizing Direct Hot-Electron Transfer from Metal Nanoparticles to Per- and Polyfluoroalkyl Substances

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 4536 - 4546

Published: April 30, 2025

Per- and polyfluoroalkyl substances (PFAS) are a group of forever synthetic chemicals. They widely utilized in industries household appliances because their remarkable stability distinctive oil- water-repellent properties. Despite broad applications, unfortunately, PFAS hazardous to all forms life, including humans. In recent years, the environmental persistence has raised significant interest degrading these substances. However, strong C-F bonds chemicals pose several challenges degradation. Plasmons noble metal nanoparticles (NPs) offer many exciting photocatalytic reactions. an atomistic understanding plasmon-driven processes remains elusive. this work, using real-time time-dependent density functional theory, we have studied formation plasmons, hot-carrier generation, subsequent direct transfer from NPs PFAS. Our simulations show that there is apparent hot-electron Moreover, Ehrenfest dynamics simulations, demonstrated transferred hot electrons can efficiently degrade without requiring any external thermal bath. Thus, our work provides picture plasmon-induced efficient degradation We strongly believe generates impetus utilize plasmonic mitigate

Language: Английский

---