Results 51 to 60 of about 11,277 (210)

Determination of the kinetic parameters for crystallization directly from isothermal DSC curves

Discover Chemistry
The determination of crystallization kinetic parameters is central to elucidating the transformation mechanisms in glassy systems, particularly when analyzed within the framework of the Kolmogorov–Johnson–Mehl–Avrami equation. In this paper, we show that
Abdalla A. Elabbar, Abdel-Hamid A. Abu-Sehly   +1 more
doaj   +1 more source

Resolving and Controlling Silicoaluminophosphate Zeolite Intergrowths and Mixtures

Advanced Science, EarlyView.
Low‐dose electron microscopy enables atomic‐resolution imaging of beam‐sensitive SAPO‐34/18 intergrowths, revealing their stacking sequences and spatial distributions under controlled Si content and SDA ratio. This work establishes a methodology linking controllable synthesis with atomic‐resolution microscopy to investigate structure–property ...
Yuxin Ke, Jiale Feng, Lei Wang, Xiao Chen, Mengmeng Ma, Jiabin Cui, Juan Diwu, Yuman Liu, Fei Wei, Boyuan Shen, Bin Song   +10 more
wiley   +1 more source

Crystallization of Polymers with a Reduced Density of Entanglements

Crystals
Since methods for reducing macromolecule entanglements have been developed, it has become possible to better understand the impact of polymer chain entanglement on the crystallization process.
Andrzej Pawlak
doaj   +1 more source

High‐Entropy Engineering and External Magnetic Field Modulation Synergistically Enhance the H2S Sensing Performance of Rare‐Earth Perovskite Ferrites

Advanced Science, EarlyView.
A novel high‐entropy perovskite oxide, (Gd0.2Tb0.2Dy0.2Ho0.2Er0.2)FeO3, was successfully synthesized for advanced hydrogen sulfide gas detection. By synergistically coupling high‐entropy‐induced local lattice distortion with weak magnetic field modulation, the tailored material generates abundant active sites. This innovative dual strategy dramatically
Yunfei Wang, Min Zhang, Rui Li, Xiaolong Yao, Zhaofeng Wu, Fengdong Qu, Shan Qiu, Zhenjiang Li   +7 more
wiley   +1 more source

Revisiting polymer crystallization kinetics: experimental validation of the Mo equation for modified PET systems

Frontiers in Materials
This study investigated the non—isothermal crystallization kinetics of pure poly(ethylene terephthalate) (PET) and chain—extended modified PET using DSC at various cooling rates.
Ma Lingcong, Mao Fengyu, Wu Yajuan, Peng Ying, Luo Fei, Wen Jin   +5 more
doaj   +1 more source

Polymer‐Grafted Cu(II) Metal–Organic Polyhedra as Scalable, Melt‐Processable Porous Materials

Advanced Science, EarlyView.
The use of a direct synthetic route to obtain polymer‐grafted Cu(II)‐based metal–organic polyhedra gives rise to a low‐cost and scalable cage. This material combines low‐temperature melting, achieving phase changes while preserving cage integrity, and high CO2 uptake exceeding 0.6 mmol g−1.
Alba Cortés‐Martínez, Francisco Sánchez‐Férez, José A. Suárez del Pino, Sergio Royuela, Félix Zamora, Daniel Maspoch, Arnau Carné‐Sánchez   +6 more
wiley   +1 more source

Distinct Crystallization Pathways of Polyoxymethylene in Methanol System

Crystals
Recrystallization of polyoxymethylene (POM) in solvent is an effective post-treatment method for manufacturing a better POM product. Herein, the crystallization process of POM in methanol was investigated with the use of a series of equipment.
Haowen Du, Xiaomeng Zhou, Yaru Zhang, Yang Ye, Shutian Xuanyuan, Sen Yang, Guorui Lao, Chuang Xie   +7 more
doaj   +1 more source

Ultrafast Chemical Pre‐Sodiation of Pseudocapacitive CaV8O20 Anodes for High‐Performance Sodium‐Ion Capacitors

Advanced Science, EarlyView.
An ultrafast (2‐minute), gas‐free chemical pre‐sodiation strategy using Na‐benzophenone is developed to compensate for initial sodium loss in calcium vanadate (CaV8O20). Driven by the Ca2+ ‘spectator effect’, the framework enables highly reversible, quasi‐zero‐strain solid‐solution sodium storage, explicitly bypassing destructive conversion reactions ...
Neetu Bansal, Anwar Hussain, Radhey Shyam Yadav, Prakash Kumar Pathak, Minjoong Kim, Tobias Mattisson, Heejoon Ahn, Rahul R. Salunkhe   +7 more
wiley   +1 more source

First Order Phase Transformation in Amorphous Ge25Se75 – xSbx Glasses [PDF]

Журнал нано- та електронної фізики, 2013
Non-isothermal Differential scanning calorimetry (DSC) technique was used to study the kinetics of first order phase transformation in Ge25Se75 – xSbx glasses.
F.A. Al-Agel, F.M. Al-Marzouki, A.A. Al-Ghamdi, Shamshad A. Khan, M. Husain   +4 more
doaj  

Thermal stability and non-isothermal crystallization kinetics of Pd82Si18 amorphous ribbon

AIP Advances, 2017
Rapidly quenched Pd82Si18 ribbon was prepared by melt spinning. The thermal stability and non-isothermal crystallization kinetics of Pd82Si18 amorphous ribbon were investigated by differential scanning calorimeter measurements.
Xutong Wang, Mo Zeng, Niklas Nollmann, Gerhard Wilde, Jiang Wang, Chengying Tang   +5 more
doaj   +1 more source