rtl-M-MOFs (M = Cu, Zn) with a T-shaped bifunctional pyrazole-isophthalate ligand showing flexibility and S-shaped Type F-IV sorption isotherms with high saturation uptakes for M = Cu

2019 ◽  
Vol 48 (23) ◽  
pp. 8057-8067 ◽  
Author(s):  
Simon Millan ◽  
Beatriz Gil-Hernández ◽  
Erik Milles ◽  
Serkan Gökpinar ◽  
Gamall Makhloufi ◽  
...  
Keyword(s):  
Phase Change ◽  
Closed Form ◽  
Sorption Isotherms ◽  
Cryogenic Temperatures ◽  
Gate Opening ◽  
High Saturation ◽  
Reversible Phase

The flexible, activated MOF rtl-[Cu(HIsa-az-dmpz)] undergoes a reversible phase change into a closed form with gate opening at cryogenic temperatures for N2 and CO2.

Preparation of PVA/PEG Phase Change Composite Nanofibers by Electrospinning

2011 ◽  
Vol 306-307 ◽  
pp. 37-40 ◽  
Author(s):  
Da Hui Sun ◽  
Tian Yu Xu ◽  
Yong Jia Liu ◽  
Mei Zhang
Keyword(s):  
Phase Transition ◽  
Phase Change ◽  
Composite Nanofibers ◽  
Diameter Distribution ◽  
Weight Percentage ◽  
Weight Content ◽  
Reversible Phase Transition ◽  
Change Characteristics ◽  
Micro Morphology ◽  
Reversible Phase

Phase change PVA / PEG composite nanofibers were prepared by electrospinning, micro-morphology of PVA / PEG fibers with different weight content were analyzed, the phase change characteristics were also analyzed. The result showed that well distributed composite nanofibers which composed by PVA/PEG blend solution can be obtained by electrospinning.PVA fibreforming were influenced because of the existence of PEG, including bond, irregular block, small rough, uneven diameter distribution in fibers. PVA/PEG blend solution of 4:6 weight content was well fibreforming compared with other different weight content.The continuity of spinneret flow in electrospinning would directly affected by polymer solution consentrition and viscosity. Further research about which and the influence in fibers diameter and morphology will be explored. Composite nanofibers possessed reversible phase transition characteristics,Tm Essentially unchanged ,Tcwere related to the weight percentage of PEG/PVA, at the same time, the enthalpy will increase along with the gradually increase in weight percentage of PEG.

Metal–Organic Frameworks with Mechanically Interlocked Pillars: Controlling Ring Dynamics in the Solid-State via a Reversible Phase Change

2014 ◽  
Vol 136 (20) ◽  
pp. 7403-7409 ◽  
Author(s):  
Kelong Zhu ◽  
V. Nicholas Vukotic ◽  
Christopher A. O’Keefe ◽  
Robert W. Schurko ◽  
Stephen J. Loeb
Keyword(s):  
Solid State ◽  
Phase Change ◽  
Metal Organic Frameworks ◽  
Ring Dynamics ◽  
Metal Organic ◽  
Reversible Phase

Fast crystallization and low-power amorphization of Mg–Sb–Te reversible phase-change films

CrystEngComm ◽  
2014 ◽  
Vol 16 (32) ◽  
pp. 7401-7405 ◽  
Author(s):  
Junjian Li ◽  
Guoxiang Wang ◽  
Jun Li ◽  
Xiang Shen ◽  
Yimin Chen ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Low Power ◽  
Phase Change ◽  
Optical And Electrical Properties ◽  
Reversible Phase ◽  
Mg Doped

We prepared Mg-doped Sb2Te films and investigated their structural, optical and electrical properties.

Stable and reversible phase change performance of TiO2 coated VO2 nano-columns: Experiments and theoretical analysis

2020 ◽  
Author(s):  
Adyasha Samal ◽  
Annu Kumar Lakshya ◽  
Shyam Murli Manohar Dhar Dwivedi ◽  
Avijit Dalal ◽  
Anupam Ghosh ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Phase Change ◽  
Reversible Phase

APSe6(A = K, Rb, and Cs):  Polymeric Selenophosphates with Reversible Phase-Change Properties

2004 ◽  
Vol 43 (9) ◽  
pp. 2762-2764 ◽  
Author(s):  
In Chung ◽  
Junghwan Do ◽  
Christian G. Canlas ◽  
David P. Weliky ◽  
Mercouri G. Kanatzidis
Keyword(s):  
Phase Change ◽  
Reversible Phase

Reversible phase-change behavior in two-dimensional antimony telluride (Sb2Te3) nanosheets

2018 ◽  
Vol 112 (13) ◽  
pp. 133101 ◽  
Author(s):  
Robin B. Jacobs-Gedrim ◽  
Michael T. Murphy ◽  
Fan Yang ◽  
Nikhil Jain ◽  
Mariyappan Shanmugam ◽  
...  
Keyword(s):  
Phase Change ◽  
Two Dimensional ◽  
Antimony Telluride ◽  
Change Behavior ◽  
Reversible Phase

scholarly journals A Phase-Change Mechanism of GST-SL Based Superlattices upon Sb Flipping

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 360
Author(s):  
Teng Sun ◽  
Furong Liu ◽  
Jicheng Guo ◽  
Gang Han ◽  
Yongzhi Zhang
Keyword(s):  
Phase Change ◽  
Length Distribution ◽  
Melting Process ◽  
Ab Initio Molecular Dynamics ◽  
Electron Localization ◽  
Switching Model ◽  
Change Mechanism ◽  
Fast Switching ◽  
Reversible Phase ◽  
Bond Length Distribution

Reversible phase-change behaviors of Ge–Sb–Te based superlattices (GST-SL) were studied by ab initio molecular dynamics (AIMD) simulations based on three models containing Ge/Sb intermixing, namely the Petrov-mix, Ferro-mix, and Kooi-mix models. The flipping behavior of Sb atoms was found in all the three GST-SL models in the melting process. Among them the Kooi-mix model exhibited the best stability, and the analyses of bond length distribution and electron localization function provided a better explanation on the phase transition of GST-SL. Finally, we proposed a fast switching model for GST-SL based on Sb flipping.

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