Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125473 - 125473
Опубликована: Май 1, 2025
Язык: Английский
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Фев. 13, 2025
Metal–support interactions (MSI) play a crucial role in enhancing the catalytic activity and stability of metal catalysts by establishing stable metal-oxide interface. However, precisely controlling MSI at atomic scale remains significant challenge, as how to construct an optimal is still not fully understood: Both insufficient excessive showed inferior performance. In this study, we propose finely tuning using temporal-precise transient high-temperature pulse heating. Using Pt/CeO2 model system, systematically investigate variations duration atmosphere influence reconstruction metal–support interface MSIs. This leads formation two distinct types MSI: (1) strong (SMSI, Pt@CeO2) (2) reactive (RMSI, Pt5Ce@CeO2), each with unique compositions, structures, electrochemical behaviors. Notably, Pt5Ce@CeO2 RMSI exhibits remarkable performance alkaline hydrogen evolution, showing overpotential −29 mV operation for over 300 h −10 mA·cm–2. Theoretical studies reveal that alloying Pt Ce form Pt5Ce modifies electronic structure Pt, shifting d-band center optimize adsorption dissociation intermediates, thereby reducing reaction energy barrier. Moreover, intimate interaction CeO2 further improves stability. Our strategy enables precise, stepwise, controllable regulation MSIs, providing insights development highly efficient durable heterostructured wide range applications.
Язык: Английский
Процитировано
1
Coordination Chemistry Reviews, Год журнала: 2025, Номер 531, С. 216496 - 216496
Опубликована: Фев. 16, 2025
Язык: Английский
Процитировано
1
Composites Part B Engineering, Год журнала: 2025, Номер 301, С. 112501 - 112501
Опубликована: Апрель 11, 2025
Язык: Английский
Процитировано
1
ACS Nano, Год журнала: 2025, Номер unknown
Опубликована: Май 4, 2025
Energy materials are essential for addressing global energy challenges, and their design, recycling, performance optimization critical sustainable development. To efficiently rise to this occasion, advanced technology should be explored address these challenges. This review focuses on the potential of ultrafast thermal engineering as an innovative approach design recycling systematically examines ultrahigh temperature shock's origins, mechanisms, developmental progress, clarifying fundamental differences between Joule heating carbothermal shock modes. Recent advancements in lithium/sodium battery electrode fabrication, catalyst synthesis, by comprehensively summarized highlight processing parameters, structural modulation underlying principles. The also explores mechanisms processes, scalability, environmental economic implications. Notably, a mechanistic insight into dynamic coexistence UTS is proposed, which may synergistically govern evolution poor conductivity/insulating materials. ultimately aims drive development application field.
Язык: Английский
Процитировано
1
Progress in Natural Science Materials International, Год журнала: 2024, Номер unknown
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
6
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(45), С. 62022 - 62032
Опубликована: Ноя. 4, 2024
In response to energy challenges, rechargeable zinc–air batteries (RZABs) serve as an ideal platform for storage with a high density and safety. Nevertheless, addressing the sluggish oxygen reduction reaction (ORR) evolution (OER) in RZAB requires highly active robust electrocatalysts. High-entropy Prussian blue analogues (HEPBAs), formed by mixing diverse metals within single lattice, exhibit enhanced stability due their increased entropy, which lowers Gibbs free energy. HEPBAs innately enable sacrificial templating, effective way synthesize complex structures. Impressively, this study, we successfully transform into exquisite multiphase (multimetallic alloy, metal carbide, oxide) heterostructure nanoparticles through controlled synthesis process. The elusive manifested two sites selective ORR OER. By integrating CNT HEPBA-derived (HEPBA/CNT-800), HEPBA/CNT-800 demonstrates superior activity toward both (E1/2 = 0.77 V) 0.1 M KOH solution OER (η 330 mV at 50 mA cm–2) 1 solution. HEPBA/CNT-based air electrode demonstrated open-circuit voltage of 1.39 V provided significant 71 mW cm–2. Moreover, charge discharge cycles lasting up 40 h current 5 cm–2 demonstrate its excellent stability. This work provides alternative avenue rational design HEPBA's derivative sustainable metal–air battery platform.
Язык: Английский
Процитировано
5
Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)
Опубликована: Авг. 29, 2024
The active sites of inexpensive transition metal electrocatalysts are sparse and singular, thus high-entropy alloys composed non-precious metals have attracted considerable attention due to their multi-component synergistic effects. However, the facile synthesis alloy composites remains a challenge. Herein, we report "one-stone, two-birds" method utilizing zinc (Zn)-rich metal-organic frameworks as precursors, by virtue low boiling point Zn (907 °C) its high volatility in alloys, carbon nanocomposite with layered pore structure was ultimately synthesized. experimental results demonstrate that volatilization can prevent agglomeration contribute formation uniformly dispersed nanoparticles at slower pyrolysis cooling rates. Simultaneously, plays crucial role creating hierarchically porous structure. Compared zinc-free HEA/NC-1, HEA/NC-5 derived from precursor containing 0.8 exhibit massive micropores mesopores. resulting nanocomposites represent effect between highly catalytic centers hierarchical adsorption sites, achieving excellent electrocatalytic oxygen reduction performance catalyst loading compared commercial Pt/C. This convenient zinc-rich be extended production more various application fields.
Язык: Английский
Процитировано
4
ACS Nano, Год журнала: 2024, Номер unknown
Опубликована: Дек. 7, 2024
Flash Joule heating has been used as a versatile solid-state synthesis method in the production of wide range products, including organic, inorganic, and ceramic products. Conventional flash systems are large customized, presenting significant barriers cost assembly, expertise needed to operate, uniformity results between different systems. Even laboratory-scale struggle operate above 10 g capacity, they suffer from poor temperature controllability. We present here use commercial off-the-shelf arc welders superior alternative standard due their low ($120), ease use, compact size, high controllability, tunability. demonstrate gram-scale variety organic species using these With addition another reactor configuration for only $260, we scale up products record rates laboratory scale, achieving rate 3 kg/h graphene kilogram-per-day SiC, carbon nanotubes, SnSe2, SnS2.
Язык: Английский
Процитировано
3
Energy storage materials, Год журнала: 2025, Номер unknown, С. 104054 - 104054
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0