Results 31 to 40 of about 1,032,199 (339)

Noble Metal-Free TiO2-Coated Carbon Nitride Layers for Enhanced Visible Light-Driven Photocatalysis

open access: yesNanomaterials, 2020
Composites of g-C3N4/TiO2 were one-step prepared using electron impact with dielectric barrier discharge (DBD) plasma as the electron source. Due to the low operation temperature, TiO2 by the plasma method shows higher specific surface area and smaller ...
Bo Zhang, Xiangfeng Peng, Zhao Wang
doaj   +1 more source

Faceting and branching in 2D crystal growth [PDF]

open access: yes, 2011
The official published version of the Article can be accessed from the link below - Copyright @ 2011 APSUsing atomic scale time-dependent density functional calculations we confirm that both diffusion-controlled and diffusionless crystallization modes ...
Gyula I. Tóth   +3 more
core   +1 more source

Behaviors and physical mechanism of ceftezole sodium de-agglomeration driven by ultrasound

open access: yesUltrasonics Sonochemistry, 2021
Ultrasound-mediated method, which can effectively disperse agglomerates or even eliminate agglomeration, has received more and more attentions in industrial crystallization.
Xiaowei Cheng   +4 more
doaj   +1 more source

Vitrification and determination of the crystallization time scales of the bulk-metallic-glass-forming liquid Zr58.5Nb2.8Cu15.6Ni12.8Al10.3 [PDF]

open access: yes, 2001
The crystallization kinetics of Zr58.5Nb2.8Cu15.6Ni12.8Al10.3 were studied in an electrostatic levitation (ESL) apparatus. The measured critical cooling rate is 1.75 K/s.
Hays, C. C.   +6 more
core   +1 more source

Theoretical Model and Experimental Investigations on Solution-Mediated Polymorphic Transformation of Theophylline: From Polymorph I to Polymorph II

open access: yesCrystals, 2019
In this work, theophylline was selected as the model compound to study and simulate the solution-mediated polymorphic transformation. The polymorph I and polymorph II of theophylline were prepared and fully characterized.
Manli Zhu   +6 more
doaj   +1 more source

Molecular conformational evolution mechanism during nucleation of crystals in solution

open access: yesIUCrJ, 2020
Nucleation of crystals from solution is fundamental to many natural and industrial processes. In this work, the molecular mechanism of conformational polymorphism nucleation and the links between the molecular conformation in solutions and in crystals ...
Xin Li   +8 more
doaj   +1 more source

Dual Functions of Crystallization Control and Defect Passivation Enabled by Sulfonic Zwitterions for Stable and Efficient Perovskite Solar Cells

open access: yesAdvances in Materials, 2018
Uniform and high‐electronic‐quality perovskite thin films are essential for high‐performance perovskite devices. Here, it is shown that the 3‐(decyldimethylammonio)‐propane‐sulfonate inner salt (DPSI), which is a sulfonic zwitterion, plays dual roles in ...
Xiaopeng Zheng   +10 more
semanticscholar   +1 more source

Secondary Crystallization of Isotactic Polystyrene [PDF]

open access: yes, 1974
When isotactic polystyrene (i-PS) is crystallized from the melt or from the glassy state at rather large supercooling an additional melting peak appears on the curve during scanning in a differential calorimeter.
Challa, G.,   +2 more
core   +2 more sources

Solution-Mediated Polymorphic Transformation of L-Carnosine from Form II to Form I

open access: yesCrystals, 2022
In this study, L-carnosine was chosen as the model compound to systematically study solution-mediated polymorphic transformation by online experiment and theoretical simulation.
Yanan Zhou   +4 more
doaj   +1 more source

In situ visualization of Ni-Nb bulk metallic glasses phase transition

open access: yes, 2013
We report the results of the Ni-based bulk metallic glass structural evolution and crystallization behavior in situ investigation. The X-ray diffraction (XRD), transmission electron microscopy (TEM), nano-beam diffraction (NBD), differential scanning ...
Louzguine-Luzgin, D. V.   +7 more
core   +3 more sources

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