نتایج جستجو برای: melt intercalation

تعداد نتایج: 21126  

2003
B. K. Holtzman M. E. Zimmerman S. B. Ginsberg D. L. Kohlstedt Susumu Umino

[1] We demonstrate that deformation of partially molten ductile rocks can produce melt segregation by two-phase flow. In simple shear experiments on several melt-rock systems at high temperature and pressure, melt segregates into distinct melt-rich layers oriented 20 to the shear plane. Melt segregates in samples in which pressure gradients can develop at length scales less than the sample thic...

2014
Arno A. Enose Priya K. Dasan H. Sivaramakrishnan Sanket M. Shah

Solid dispersion is molecular dispersion of drug in a polymer matrix which leads to improved solubility and hence better bioavailability. Solvent evaporation technique was employed to prepare films of different combinations of polymers, plasticizer, and a modal drug sulindac to narrow down on a few polymer-plasticizer-sulindac combinations. The sulindac-polymer-plasticizer combination that was ...

2010
Michael Steele Jinlun Zhang Wendy Ermold

[1] In this study, we use a numerical sea‐ice‐ocean model to examine what causes summertime upper ocean warming and sea ice melt during the 21st century in the Arctic Ocean. Our first question is, “What causes the ocean to warm in the Pacific Sector during the summer”?We find that about 80% of total heating over this region comes from ocean surface heat flux, with the remaining 20% originating ...

2011
D. Bercovici

In the transition-zone water-filter hypothesis, (see main text), water is assumed essentially trapped within the transition zone because of dehydration melting of ambient upwelling at 410km and exsolution of water from slabs at 660km. The assumption that recycling of water is closed allows us to develop a simple theoretical model with which to predict various important parameters such as the me...

2012

Intercalation products based on ionic exchange reaction between cationic dye methylene blue and Na-montmorillonite were prepared. Montmorillonite particles intercalated with methylene blue were characterized using X-ray diffraction, infrared spectroscopy, elemental and thermo-gravimetric analysis. The results showed that intercalation of dye molecules within the interlayer spaces of montmorillo...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Haotian Wang Zhiyi Lu Shicheng Xu Desheng Kong Judy J Cha Guangyuan Zheng Po-Chun Hsu Kai Yan David Bradshaw Fritz B Prinz Yi Cui

The ability to intercalate guest species into the van der Waals gap of 2D layered materials affords the opportunity to engineer the electronic structures for a variety of applications. Here we demonstrate the continuous tuning of layer vertically aligned MoS2 nanofilms through electrochemical intercalation of Li(+) ions. By scanning the Li intercalation potential from high to low, we have gaine...

2016
Liang Chen Hezhu Shao Xufeng Zhou Guoqiang Liu Jun Jiang Zhaoping Liu

Rechargeable aqueous metal-ion batteries made from non-flammable and low-cost materials offer promising opportunities in large-scale utility grid applications, yet low voltage and energy output, as well as limited cycle life remain critical drawbacks in their electrochemical operation. Here we develop a series of high-voltage aqueous metal-ion batteries based on 'M(+)/N(+)-dual shuttles' to ove...

2017
Di-Yan Wang Chuan-Yu Wei Meng-Chang Lin Chun-Jern Pan Hung-Lung Chou Hsin-An Chen Ming Gong Yingpeng Wu Chunze Yuan Michael Angell Yu-Ju Hsieh Yu-Hsun Chen Cheng-Yen Wen Chun-Wei Chen Bing-Joe Hwang Chia-Chun Chen Hongjie Dai

Recently, interest in aluminium ion batteries with aluminium anodes, graphite cathodes and ionic liquid electrolytes has increased; however, much remains to be done to increase the cathode capacity and to understand details of the anion-graphite intercalation mechanism. Here, an aluminium ion battery cell made using pristine natural graphite flakes achieves a specific capacity of ∼110 mAh g-1 w...

2009
E Widenkvist D W Boukhvalov S Rubino S Akhtar J Lu R A Quinlan M I Katsnelson K Leifer H Grennberg U Jansson

A method to produce suspensions of graphene sheets by combining solution-based bromine intercalation and mild sonochemical exfoliation is presented. Ultrasonic treatment of graphite in water leads to the formation of suspensions of graphite flakes. The delamination is dramatically improved by intercalation of bromine into the graphite before sonication. The bromine intercalation was verified by...

Journal: :Chemistry, an Asian journal 2015
Evan Uchaker Guozhong Cao

Simple defect modification is a powerful means to improve material intercalation capabilities. It has received considerable interest lately as it can directly alter both the chemical and structural characteristics; techniques of note include cationic disordering, amorphization, doping, partial cation reduction, and manipulation of intrinsic defects. Defects can reduce the stress and the electro...

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