Results 181 to 190 of about 271,977 (249)

Frontiers in transition‐metal single‐atom electrocatalysts: Design tactics, mechanistic regulation, and electrochemical sensing technologies

InfoMat, EarlyView.
This review offers an overview of recent advances in the fundamental properties, synthesis methods, and structural optimization of transition‐metal single‐atom electrocatalysts for electrochemical sensing. It also provides a comprehensive summary of the emerging applications in electrochemical assays based on these materials, along with key challenges ...
Yue Cao, Bo‐Yu Chen, Yiru Sheng, Haoyuan Song, Linan Zhu, Xiaohan Yang, Yuehe Lin, Wenlei Zhu, Yang Zhou   +8 more
wiley   +1 more source

Exposure‐Based Toxicological Evaluation of Lead and Elemental Impurities in Encapsulated Green Tea Dietary Supplements Under a Regulatory Framework

Journal of Applied Toxicology, EarlyView.
ABSTRACT The consumption of green tea (Camellia sinensis (L.) Kuntze) in the form of encapsulated dietary supplements has increased substantially in recent years; however, data supporting toxicological risk assessment of inorganic contaminants in these products remain limited.
Amanda da Silva Chaves, Lisia Maria Gobbo dos Santos, Beatriz Scaramelo, Júlia Maria Peixoto Loureiro, Fabio Coelho Amendoeira, Silvana do Couto Jacob, Fausto Klabund Ferraris   +6 more
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Influence of THF as Internal‐Donor on Ziegler‐Natta Polyethylene Catalysts

Macromolecular Reaction Engineering, EarlyView.
Ziegler–Natta catalysts remain widely applied due to robustness, handling ease, and cost‐effectiveness. To support further optimization, we examine how internal donors such as tetrahydrofuran influence catalyst performance and polymer characteristics.
Alexander Mottl, Sarah Brunner, Patrik Schneider, Fabian Hofmann, Moritz Pischulti, Dario Pindirc, Clemens Schwarzinger, Christian Paulik   +7 more
wiley   +1 more source

Iron(III) ion reinforced P(NiPAAm‐co‐AA) beads as tunable smart organogels

Polymer International, EarlyView.
Macroporous beads of PNiPAAm‐co‐AA copolymers were further crosslinked by iron(III) ions. The resulting beads are mechanically robust and reversibly responsive to a change of solvent from ethanol to ethyl acetate with half‐lives in the range of minutes.
Johannes Gmeiner, Jonah Hasse, Gerrit A Luinstra   +2 more
wiley   +1 more source

3D‐Printed Crosslinked Nanocellulose‐MXene Hydrogels and Aerogels with High Strength and Conductivity

Small, EarlyView.
This study presents a robust strategy for 3D printing conductive, mechanically resilient MXene–CNF composite structures using a single‐step freeze‐induced crosslinking method. The printed architectures remain stable in both wet and dry states, exhibit high electrical conductivity and mechanical strength, and demonstrate practical application in fully ...
Nuzhet Inci Kilic, Kyle Matthews, Giovanni Marco Saladino, Yury Gogotsi, Per A. Larsson, Mahiar Max Hamedi   +5 more
wiley   +1 more source

Rational Design Strategies Toward Efficient and Stable Electrocatalysts for Hydrogen Production via Water Electrolysis: A Comprehensive Review

Small, EarlyView.
ABSTRACT Active and stable electrocatalysts are critical for sustainable hydrogen production, particularly for high‐current‐density water electrolysis and specialized applications like seawater splitting. However, most water‐splitting electrocatalysts show limited activity at high current densities and poor long‐term stability, making it difficult to ...
Nikhil Komalla, Nelson Y. Dzade
wiley   +1 more source

Bifunctional Electrocatalysts in Rechargeable Lithium‐Gas Batteries: Material Evolution and Mechanistic Insights from Metal‐Free Carbons to Carbon‐Supported Single‐Atom Sites

Small, EarlyView.
This review charts the material evolution of bifunctional electrocatalysts for rechargeable lithium‐gas batteries. It highlights the journey from heteroatom‐doped, metal‐free carbon architectures to precision‐engineered carbon‐supported single‐atom sites. The discussion focuses on mechanistic insights into how these catalysts govern reversible O2, CO2,
Daming Ren, Shuimei Chen, Yuzheng Wu, Xiaodan Huang, Jong Beom Baek, Ashok Kumar Nanjundan   +5 more
wiley   +1 more source

Discussion on Hollow-Cathode Effect

IEEJ Transactions on Fundamentals and Materials, 1976
openaire   +2 more sources

Perovskite‐Based Catalysts for the Oxygen Evolution Reaction: Synthesis, Device Relevant Performance, and Scale‐Up Strategies

Small, EarlyView.
Perovskites are emerging as catalysts for acidic oxygen evolution in proton exchange membrane water electrolyzers. This manuscript focuses on catalyst behavior under device‐relevant conditions, highlighting surface reconstruction, elemental utilization, and membrane electrode assembly performance. By linking materials design with electrolyzer operation,
Jala Bib Khan, Norbert Kazamer, Marco Brand, Tim Hülser, Clemens Pollerberg, Ulrich Rost   +5 more
wiley   +1 more source