Results 111 to 120 of about 25,595 (290)

Bayesian Optimization of Solvent‐Free Thermal Amidation via Reactive Extrusion

open access: yesChemistry – A European Journal, EarlyView.
Thermal amidation between a carboxylic acid and an amine was successfully conducted in an extruder in the absence of solvent, coupling agent, or catalyst, relying on an adapted Bayesian Optimization protocol. Active pharmaceutical ingredient moclobemide was synthesized on a larger scale, achieving excellent yield and low Process Mass Intensity (PMI ...
Matthieu Lavayssiere   +2 more
wiley   +1 more source

Mechanochemically Synthesized CIGS Nanocrystalline Powder for Solar Cell Application [PDF]

open access: yes, 2013
Copper Indium Gallium Diselenide (CIGS) is a compound semiconductor material from the group of I-III-VI. The material is a solid solution of copper, indium and selenium (CIS) and copper, gallium and selenium with an empirical formula of CuIn(1 – x)GaxSe2,
Desai, R.R.   +5 more
core  

A Fast and Highly Stable Aqueous Calcium‐Ion Battery for Sustainable Energy Storage

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Aqueous batteries provide a low‐cost, safer alternative to lithium‐ion batteries, but their viability is often limited by rapid electrode degradation. This study shows that replacing K+ with divalent Ca2+ ions in the electrolyte significantly boosts the stability of both copper hexacyanoferrate cathodes and polyimide anodes, enabling fast‐charging ...
Raphael L. Streng   +4 more
wiley   +1 more source

X-ray diffraction and Mössbauer spectroscopy studies of a mechanosynthesized Fe75B25 alloy

open access: yesNukleonika, 2015
In this work, the process of formation of metastable phases was investigated for the Fe75B25 composition. Mechanical synthesis was performed in a MAPF-2M high-energy planetary ball mill under an argon atmosphere.
Jartych Elżbieta   +2 more
doaj   +1 more source

Synthesis and structural evolution of vanadium carbide in nano scale during mechanical alloying

open access: yesJournal of King Saud University: Engineering Sciences, 2016
In this study, nano crystalline vanadium carbide was synthesized by mechanical alloying method. V2O5, C and Mg powders were placed in a planetary ball mill and sampled after different milling times.
Mohsen Hossein-Zadeh   +4 more
doaj   +1 more source

Lithium Sulphur Batteries [PDF]

open access: yes, 2015
S+C cathode material was prepared by simple solid-state reaction in ball mill. Content of sulphur was approximately 80 wt. % in final sample. Cyclic voltammetry and galvanostatic charge/discharge techniques were used for characterization of the samples ...
Juračka, M.
core  

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

open access: yesEcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan   +3 more
wiley   +1 more source

A Review of Grain Boundaries: Formation Mechanism, Synthesis Strategy, and Application in Electrocatalysis

open access: yesEcoEnergy, EarlyView.
An overview of grain boundary engineering in the field of electrocatalysis. ABSTRACT Key electrocatalytic reactions such as HER, OER, ORR, CO2RR, and NRR offer promising routes for storing renewable energy as chemical fuels. However, their widespread application is constrained due to the lack of highly active and stable catalysts. Grain boundaries (GBs)
Jingyu Gao   +8 more
wiley   +1 more source

Mechanochemical Synthesis of Lead-Free Halide Layered Double Perovskites: A Green and Scalable Approach. [PDF]

open access: yesChemSusChem
Herein we report a facile, green, and scalable synthetic alternative for the obtention of layered double perovskites (LDPs) via mechanosynthesis. This approach allows for the synthesis of phase‐pure LDPs in batches of up to 5 g within minutes. To our knowledge, this represents the largest scale and fastest synthesis of these materials reported to date.
Escobedo-Perez TI   +2 more
europepmc   +2 more sources

A Review of Black Phosphorus‐Based Materials: From Preparation Strategies to Characterization Techniques

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang   +7 more
wiley   +1 more source

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