Results 101 to 110 of about 4,644,920 (368)

Heterophase fcc‐hcp‐fcc High‐Entropy Alloy Nanomaterials with Tailored Electron Divergence for Selective Ammonia Electrosynthesis

Advanced Materials, EarlyView.
Heterophase fcc‐hcp‐fcc RuFeMMnMo (M═CoNi, Co, and Ni) high‐entropy alloy nanomaterials have been successfully synthesized using a one‐pot approach. The highly random distribution of multiple metal components and the tunable diversity of metal atomic arrangements can be realized simultaneously. By combining metals with different work functions, fcc‐hcp‐
Xiang Meng, Mingzi Sun, Xinyi Li, Jing Chen, Yunhao Wang, Fengkun Hao, Fu Liu, Quanlin Zhao, Liang Guo, Yuecheng Xiong, Juan Wang, Guozhi Wang, Mingzheng Shao, Chaohui Wang, Xiaoqing Huang, Qinghua Zhang, Xiao Zhao, Bolong Huang, Zhanxi Fan   +18 more
wiley   +1 more source

Copper-Catalyzed Four-Component A³-Based Cascade Reaction: Facile Synthesis of 3-Oxetanone-Derived Spirocycles

Chemistry
3-Oxetanone-derived spirooxazolidines represent a class of building blocks for accessing diverse saturated heterocycles, but their synthetic methods remain unexplored.
Rongkang Zhang, Liliang Huang, Aiguo Gu, Huangdi Feng   +3 more
doaj   +1 more source

Reactions at Polymer Interfaces: Transitions from Chemical to Diffusion-Control and Mixed Order Kinetics

, 1998
We study reactions between end-functionalized chains at a polymer-polymer interface. For small chemical reactivities (the typical case) the number of diblocks formed, $R_t$, obeys 2nd order chemically controlled kinetics, $R_t \sim t$, until interfacial ...
B O'Shaughnessy, D Vavylonis, Doi M., Friedman B., Kotomin E., O'Shaughnessy B., Scott C., Semenov A. N., Sperling L. H.   +8 more
core   +1 more source

Phase Diagrams Enable Solid‐State Battery Design

Advanced Materials Interfaces, EarlyView.
Batteries are non‐equilibrium devices with inherent thermodynamic driving forces to react at interfaces, regardless of kinetics or operating conditions. Chemical potential mismatches across interfaces are dissipated via interfacial reactions. In this work, it is illustrated how phase diagrams and chemical potential maps predict degradation pathways but
Nathaniel L. Skeele, Matthias T. Agne
wiley   +1 more source

Piperine-hydroxybenzoate as phytochemistry antiosteoarthritis combination: Structural, solubility, and in vivo antiinflammatory study

Heliyon
This study discusses the composition and structure determination of a new multicomponent system from antiinflammatory natural ingredients, consisting of piperine (Pip) and 4-hydroxybenzoic acid (HBA), named Pip-HBA. In addition, this research studied its
Ari Sartinah, Hidehiro Uekusa, Yuto Abekura, Slamet Ibrahim, Kusnandar Anggadiredja, Ilma Nugrahani   +5 more
doaj   +1 more source

Ugi reaction-derived prolyl peptide catalysts grafted on the renewable polymer polyfurfuryl alcohol for applications in heterogeneous enamine catalysis

Beilstein Journal of Organic Chemistry, 2019
The multicomponent synthesis of prolyl pseudo-peptide catalysts using the Ugi reaction with furfurylamines or isocyanides is described. The incorporation of such a polymerizable furan handle enabled the subsequent polymerization of the peptide catalyst ...
Alexander F. de la Torre, Gabriel S. Scatena, Oscar Valdés, Daniel G. Rivera, Márcio W. Paixão   +4 more
doaj   +1 more source

A general A³: coupling reaction based on functionalized alkynes

Química Nova, 2013
A range of hydroxypropargylpiperidones were efficiently obtained by a one-pot three-component coupling reaction of aldehydes, alkynols, and a primary amine equivalent (4-piperidone hydrochloride hydrate) in ethyl acetate using copper(I) chloride as a ...
Edison P. Wendler, Alcindo A. Dos Santos
doaj   +1 more source

The statistical physics of multi-component alloys using KKR-CPA

, 2015
We apply variational principles from statistical physics and the Landau theory of phase transitions to multicomponent alloys using the multiple-scattering theory of Korringa-Kohn-Rostoker (KKR) and the coherent potential approximation (CPA).
Khan, Suffian N., Staunton, J. B., Stocks, G. M.   +2 more
core   +1 more source

Mechanical Fatigue in Liquid‐Metal Interconnects: Failure Mechanism Analysis and Validation of Improvement Strategies

Advanced Materials Technologies, EarlyView.
Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal, Maximilian Krack, Parth Vinayakrao Sewlikar, Bart Ruttens, Tom Hauffman, Iris De Graeve, Wim Deferme, Michaël Daenen, Monika Rai   +8 more
wiley   +1 more source

Vat Photopolymerized HEMA/HEA Hydrogels for Solvent‐Responsive Transparency and Optical Encryption

Advanced Optical Materials, EarlyView.
Vat‐photopolymerized HEMA/HEA hydrogels exhibit reversible transparency‐opacity switching via hydration‐induced microphase separation and solvent exchange. The printed materials enable hydration sensing, optical encryption, and information storage, while maintaining high ductility and reversible rheology.
Murad Ali, Mohammed Ayaz Uddin, Dileep Chekkaramkodi, Rashid K. Abu Al‐Rub, Haider Butt   +4 more
wiley   +1 more source