Recent progress in photothermal-catalysis: the pivotal impact factors and various applications from energy to environment

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

---

Toward Complete CO₂ Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract Electrocatalytic conversion of carbon dioxide (CO 2 ) into valuable carbon‐based fuels and chemicals represents a promising approach to closing the cycle setting circular economy. Nevertheless, for current electrocatalytic CO reduction reaction (ECO RR) systems, realizing 100% with simultaneously high overall rate (i.e., single‐pass conversion) Faradaic efficiency (FE) remains significant challenge. Enhancing often results in decrease FE, conversely, improving FE may limit rate. Metal–CO (M–CO batteries functions face similar challenges, particularly reversible M–CO batteries, which do not accomplish net because nearly all RR products are reoxidized during subsequent charging process. Such system neutrality poses substantial challenges. This perspective provides an in‐depth analysis state‐of‐the‐art ECO systems alongside main strategies employed address their respective The critical importance achieving both is underscored practical applications effectively close cycle. Furthermore, strategic roadmap that outlines future research directions presented, thereby facilitating advancement comprehensive electroconversion technologies.

Язык: Английский

---

Constructing Pentagonal Topological Defects in Carbon Aerogels for Flexible Zinc‐Air Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Abstract In the context of energy conversion, design and synthesis high‐performance metal‐free carbon electrocatalysts for oxygen reduction reaction (ORR) is crucial. Herein, a one‐step nitrogen doping/extraction strategy proposed to fabricate 3D nitrogen‐doped aerogels (NCA‐Cl) with rich pentagonal topological defects. The NCA‐Cl electrocatalyst exhibits superb ORR activity, displaying half‐wave potential 0.89 V vs RHE 0.74 under alkaline (0.1 m KOH) acidic HClO 4 ) media, respectively, thanks balanced * OOH intermediate adsorption desorption induced by defects dopants. aqueous zinc‐air battery (ZAB) equipped cathode delivers peak power density 206.6 mW cm −2 , specific capacity 810.6 mAh g −1 durability 400 h, flexible ZAB also performed convincingly. This work provides an effective formation enhancement electrocatalytic activity carbon‐based catalysts.

Язык: Английский

---

10% Conversion of Imine into Thiazole in Covalent Organic Frameworks for Efficient Photocatalytic H₂O₂ Generation

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Abstract The 5–10 nm exciton diffusion distance for most organic semiconductors is much less than the particle size of 2D covalent frameworks (COFs). As a result, local structure change in small domain COFs, rather whole particles, could effectively promote charge transfer photocatalysis. Herein, three‐component condensation used to preparing four mixed imine‐ and thiazole‐linked donor‐acceptor (D–A) COFs. In contrast 100% imine ca. 90% 10% materials have 77–95% higher photocatalytic hydrogen peroxide (H 2 O ) production rate pure water due more prolonged lifetime excitation state. particular, USTB‐10‐S exhibits H generation 5041 µmol g −1 h . Coupling with benzyl alcohol as sacrificial reagent, its further increased 16152 , superior COF‐based photocatalysts. This work illustrates proof‐of‐concept that COFs tiny amount able significantly enhance separation thus performance, inspiring development defect engineering field

Язык: Английский

---

Deactivation Mechanism and Mitigation Strategies of Single‐Atom Site Electrocatalysts

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Abstract Single‐atom site electrocatalysts (SACs), with maximum atom efficiency, fine‐tuned coordination structure, and exceptional reactivity toward catalysis, energy, environmental purification, have become the emerging frontier in recent decade. Along significant breakthroughs activity selectivity, limited stability durability of SACs are often underemphasized, posing a grand challenge meeting practical requirements. One pivotal obstacle to construction highly stable is heavy reliance on empirical rather than rational design methods. A comprehensive review urgently needed offer concise overview progress stability/durability, encompassing both deactivation mechanism mitigation strategies. Herein, this first critically summarizes degradation induction factors at atomic‐, meso‐ nanoscale, mainly based but not oxygen reduction reaction. Subsequently, potential stability/durability improvement strategies by tuning catalyst composition, morphology surface delineated, including robust substrate metal‐support interaction, optimization active stability, fabrication porosity modification. Finally, challenges prospects for discussed. This facilitates fundamental understanding provides efficient principles aimed overcoming difficulties beyond.

Язык: Английский

---

Electrodeposited Ni–C amorphous alloys: A novel approach to enhancing catalytic activity for hydrogen evolution and urea electrooxidation

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 129, С. 184 - 192

Опубликована: Апрель 24, 2025

Язык: Английский

---

Novel One-Step Solid-State Synthesis of 2d Ni/C for Efficient Electro/Photo-Catalytic Hydrogen Evolution

Опубликована: Янв. 1, 2025

Electrocatalytic and photocatalytic hydrogen evolution reaction (HER) via water-splitting are played a significant role in solving environmental energy crisis. Two-dimensional (2D) nanomaterials regarded as promising materials the electrocatalytic HER field due to its large surface area, good hydrophilicity brilliant electronic conductivity. However, several drawbacks, such low crystalline quality, productivity limited intrinsic active sites restrict industrial applications. Herein, facile green one-step method prepare Ni particles coated by carbon 2D nanosheet (2D Ni/C-m) through molten salt (NaCl)-facilitated pyrolysis is proposed. Benefit from excellent electrical conductivity, holey synergistic effect between composition structure of prepared Ni/C-m catalyst. The areas Ni/C-0.75 catalyst shows much better activities among samples. exhibits potential -110 mV -375 at -10 mA cm-2 -200 cm-2, which compare that Pt/C (η200 = -339 mV). also speed 78 umol h-1 with Eosin Y photosensitizer. Additionally, wonderful stability process electro/photocatalytic HER. These results provide new insight fabricate Ni-based catalysts for electro/photo-catalytic evolution.

Язык: Английский

---

Transition Metal‐Based High‐Entropy Materials for Catalysis

MetalMat, Год журнала: 2025, Номер unknown

Опубликована: Янв. 29, 2025

ABSTRACT High‐entropy materials (HEMs) have emerged as a pioneering paradigm in recent years, drawing substantial interest due to their unique combination of diverse elemental constituents and homogeneous solid‐solution structure. This novel material class not only opens up extensive potential for discovery through broad spectrum combinations but also facilitates fine‐tuning properties thanks its distinctive microstructural characteristics. HEMs garnered considerable attention across various applications, particularly catalysis. The virtually infinite variations compositional within these multi‐elemental systems enable meticulous optimization the catalytic performance. Additionally, high‐entropy structure potentially enhances structural, thermal, chemical stability, which is vital ensuring functionality under harsh conditions. Herein, we thoroughly explore exceptional attributes HEMs, designing strategies transition metal‐based catalysis, three major fields HEMs: electrocatalysis, photocatalysis, thermocatalysis. discussion aspires provide valuable perspectives into advancements innovations catalyst design development.

Язык: Английский

---

Addressing the Complexity of Bridging Thermal and Reactive Catalysis. The Role of Strong Localised Electrical Fields

Topics in Catalysis, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Язык: Английский

---

Selective A‐Site Exsolution and Phase Transition in Perovskite Electrode for Efficient Flexible Znic‐Air Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Zinc-air batteries (ZABs) are highly promising for flexible electronics due to their high energy density and cost-effective. However, practical application is impeded by the sluggish kinetics of oxygen evolution reduction reactions (OER/ORR). This study presents a novel design featuring BaO nanoparticles anchored on layered perovskite PrBaMn1.5Co0.5O6-δ (PBMC) nanofibers, fabricated through plasma method. Notably, treatment induces selective exsolution A-site Ba onto surface, while simultaneously driving transformation PBMC from simple perovskite, resulting in unique BaO/PBMC heterostructure. Theoretical calculations demonstrate that construction heterojunction regulates interfacial electronic redistribution, thereby lowering barriers both OER ORR. Consequently, air electrode exhibits superior peak power enhanced stability solid-state ZABs, compared pristine cathode. Selective coupled with phase transition, alkaline-earth metal oxide/perovskite heterostructure, may offer new insights conversion technologies.

Язык: Английский

---