
Next Materials, Journal Year: 2024, Volume and Issue: 6, P. 100464 - 100464
Published: Dec. 28, 2024
Language: Английский
Next Materials, Journal Year: 2024, Volume and Issue: 6, P. 100464 - 100464
Published: Dec. 28, 2024
Language: Английский
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 30, 2024
Abstract Nanoparticles (NPs) of high entropy materials (HEMs) have attracted significant attention due to their versatility and wide range applications. HEM NPs can be synthesized by fragmenting bulk HEMs or disintegrating recrystallizing them. Alternatively, directly producing in NP form from atomic/ionic/molecular precursors presents a challenge. A widely adopted strategy involves thermodynamically driving formation leveraging the entropic contribution but incorporating strategies limit growth at elevated temperatures used for maximizing entropy. second approach is kinetically drive promoting rapid reactions homogeneous reactant mixtures using highly diluted precursor dissolutions. Additionally, experimental evidence suggests that enthalpy plays role processes moderate temperatures, with energy cost generating additional surfaces interfaces nanoscale stabilizing phase. This review critically assesses various synthesis developed preparation, highlighting key illustrative examples offering insights into underlying mechanisms. Such are critical fine‐tuning conditions achieve specific outcomes, ultimately enabling effective optimized generations these advanced both current emerging applications across scientific technological fields.
Language: Английский
Citations
9Energy storage materials, Journal Year: 2025, Volume and Issue: 75, P. 104064 - 104064
Published: Jan. 31, 2025
Language: Английский
Citations
1Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: March 23, 2025
Quasi-solid-state Zn–air batteries typically exhibit limited rate capability (<10 mA cm–2), primarily due to sluggish oxygen electrocatalysis and unstable electrochemical interfaces. Herein, we report a realistic quasi-solid-state battery featuring multiactive sites' MnFeCoNiRu high-entropy alloys uniformly anchored in carbon nanofibers (MnFeCoNiRu/CNF) as the air cathode poly(acrylamide-co-acrylic acid) organohydrogel an antifreezing conductor electrolyte. The proposed exhibits superb bifunctional activity (ΔE = 0.64 V) stability (>10,000 cycles) toward reversible reaction, outperforming commercial Pt/C RuO2, which is mainly MnFeCoNiRu/CNF possessing different active sites reactions, evidenced by situ Raman spectroscopy density functional theory. Furthermore, with its multiple intermolecular hydrogen bond network modified addition of dimethyl sulfoxide reveals strength at freezing temperature (−50 °C) high chemical/mechanical robustness. A capacity 7.15 Ah energy 110 Wh kgcell–1 are normally measured cycle test under 500 250/500 mAh conditions. operate effectively rates 5–2000 over wide range from −50 60 °C.
Language: Английский
Citations
1Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 26, 2024
Abstract Oxygen electrochemistry, which encompasses the oxygen reduction reaction (ORR) and evolution (OER), is of utmost importance in energy‐related reactions such as zinc‐air batteries (ZABs). However, due to their four‐electron transfer process, these are still significantly restricted by sluggish kinetics. Supporting atomically‐dispersed (AD) catalyst or metal nanoparticles (NPs) on nitrogen‐doped carbon (NC) proven be an effective strategy for enhancing performance electrocatalysis. Nevertheless, types catalysts fails meet critical requirements ZABs. Herein, a novel Fe AD Co NPs @NC, consists both Fe‐N 1 sites lattice, developed. Spectroscopy studies density functional theory calculations indicate that site lattice facilitates conversion amorphous CoOOH, serves main active ORR. @NC demonstrates remarkable activity OER When it used air‐electrode ZABs, power 247.49 mW cm −2 . This work presents simple yet efficient method enhance electrochemical through synergy between NPs.
Language: Английский
Citations
4Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136106 - 136106
Published: Jan. 1, 2025
Language: Английский
Citations
0Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 112, P. 115512 - 115512
Published: Jan. 23, 2025
Language: Английский
Citations
0Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104054 - 104054
Published: Jan. 1, 2025
Language: Английский
Citations
0ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 12, 2025
Language: Английский
Citations
0Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Metastable materials are considered promising electrocatalysts for clean energy conversions by virtue of their structural flexibility and tunable electronic properties. However, the exploration synthesis metastable via traditional equilibrium methods face challenges because requirements high precise control. In this regard, rapid method (RSM), with efficiency ultra-fast heating/cooling rates, enables production under non-equilibrium conditions. relationship between RSM properties remains largely unexplored. review, we systematically examine unique benefits various techniques mechanisms governing formation materials. Based on these insights, establish a framework, linking electrocatalytic performance Finally, outline future directions emerging field highlight importance high-throughput approaches autonomous screening optimal electrocatalysts. This review aims to provide an in-depth understanding electrocatalysts, opening up new avenues both fundamental research practical applications in electrocatalysis.
Language: Английский
Citations
0Chemical Communications, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Schematic illustration of synthesis methods and regulation strategies HE-LDH catalysts.
Language: Английский
Citations
0