Results 151 to 160 of about 153,481 (375)

Pulsed Laser Synthesis of Carbon Nanostructures from Organic Molecular Liquids: Structure, Kinetics and Photophysical Properties

Advanced Science, EarlyView.
The non‐focused nanosecond pulsed laser irradiation of aromatic liquids produces amorphous carbon nanodots (CNDs) or curved‐graphene quantum dots (c‐GQDs) by surface‐catalyzed 0‐order reactions under kinetic control. C hybridization partially changes from sp2 to sp3. O‐based groups passivate the surface.
Antonio Ribeiro‐González, Carlos Agudo‐Blanco, Sergio Ramírez‐Barroso, Cristina Navío, Luis Bañares, Roger Bresolí‐Obach, Santi Nonell, Nazario Martín, David García‐Fresnadillo   +8 more
wiley   +1 more source

Hyperspectral Fluorescence Imaging with a New Polarity‐Ultrasensitive Fluorescent Probe

Advanced Science, EarlyView.
Based on the critical role of the π‐spacer in determining wavelength sensitivity to microenvironmental polarity, a new fluorescent probe, Lipi‐PS is rationally developed, which exhibits the highest polarity‐sensitivity so far. Its integration with hyperspectral fluorescence imaging enables multiscale polarity mapping across cells, tissues, and ...
Ri Zhou, Hao Sha, Shengjie Fu, Guannan Liu, Jinbei Wei, Chenguang Wang, Shangguo Hou, Geyu Lu   +7 more
wiley   +1 more source

Experimental Data and Thermodynamics Modeling (eNRTL and mUNIFAC) of the (Cyclohexane + Benzene + N,N-Dimethylformamide + Sodium Thiocyanate) Systems

ChemEngineering
This study investigates the liquid–liquid equilibrium (LLE) of a cyclohexane (1) + benzene (2) + [N,N-dimethylformamide + sodium thiocyanate] (3) system.
Stephanie Lenhare, Beatriz Fernanda Bonfim de Souza, Fernanda Viana Miyasaki, André Zuber, Pedro Arce, Leandro Ferreira-Pinto, Stéphani Caroline Beneti, Lúcio Cardozo-Filho, Andréia Fátima Zanette   +8 more
doaj   +1 more source

Achieving Highly Roust Polymeric Microspheres with Efficient and Full‐Color Organic Afterglow for 3D Printing and Anti‐Counterfeiting

Advanced Science, EarlyView.
Highly robust polymeric microspheres with efficient ultralong organic phosphorescence, dual‐mode organic afterglow, and persistent fluorescence are developed by embedding different organic luminogens into melamine‐formaldehyde polymer matrices. Their organic afterglow quantum yields and lifetimes are up to 18.0% and 1.39 s under ambient conditions ...
Pengtao Hu, Yu Lang, Jiahui Sun, Lilin Wang, Zhiling Liang, Zhan Yang, Chunping Ma, Miao Luo, Peiwei Lin, Jiaqing Li, Chunxiong Zheng, Guang Shi, Zhenguo Chi, Bingjia Xu   +13 more
wiley   +1 more source

A Failed Encounter in Mathematics and Chemistry: The Folded Models of van ‘t Hoff and Sachse [PDF]

, 2016
Three-dimensional material models of molecules were used throughout the 19th century, either functioning as a mere representation or opening new epistemic horizons. In this paper, two case studies are examined: the 1875 models of van ‘t Hoff and the 1890
Friedman, Michael
core  

Metalloporphyrin/Phthalocyanine Catalysts for Electrocatalytic Nitrogen Fixation

Advanced Science, EarlyView.
This review focuses on the application of metal porphyrin/phthalocyanine‐based catalysts in electrocatalytic nitrogen fixation. The detailed examination encompasses the structure and modification strategies of metal porphyrin/phthalocyanine‐based catalysts, their application in electrocatalytic nitrogen fixation, and the associated reaction mechanisms.
Hai Sun, Shun Lu, Yuanyuan Qi, Jiahui Wu, Terence Liu, Jun‐Sheng Qin, Heng Rao   +6 more
wiley   +1 more source

Freestanding CuBTC‐Doped Fluorine‐Containing Flexible Membrane with Ultrafast Oil‐Water Separation via Enhanced Electrostatic Repulsion Force

Advanced Science, EarlyView.
A new type of CuBTC‐Doped Fluorene‐Containing Flexible Membrane (CuBTCFFM) was rapidly prepared by high internal phase emulsion template method and ultraviolet polymerization process, which has excellent oil‐water separation efficiency and high permeate flux.
Xiaoshuang Li, Peize Yang, Minghui Zhu, Zhen Zhang, Boyu Lei, Bing Geng, Guanghui Cui, Mei Yan   +7 more
wiley   +1 more source

Thermodynamic study of the solubility of some sulfonamides in cyclohexane

Journal of the Brazilian Chemical Society, 2003
The thermodynamic functions Gibbs energy, enthalpy and entropy of solution in cyclohexane, were evaluated from solubility data for a group of sulfonamides over the temperature range from 20.0 to 40.0 °C.
Martínez Fleming, Ávila Carolina M., Gómez Alfredo   +2 more
doaj  

Synthesis of Functional Materials Using N‐heterocyclic Amines Beyond Melamine

Advanced Science, EarlyView.
Melamine has long enabled supramolecular assemblies, polymers, and carbon nitrides, yet related N‐heterocyclic amines remain underexplored. This review highlights advances with melamine analogues such as 6‐phenyl‐, 6‐methyl‐triazine diamines and 2,4,6‐triaminopyrimidine, focusing on how structural variation governs reactivity, condensation, and ...
Jesús Barrio, Arne Thomas
wiley   +1 more source

An Electron Diffraction Study of the Molecular Structure of Dodecafluoro-cyclohexane in the Gas Phase. [PDF]

, 1968
K. E. Hjortaas, K. O. Strømme, Finn Sandberg, Torbjörn Norin   +3 more
openalex   +1 more source