(Invited) Capacitive and Pseudocapacitive Intercalation of Aqueous Ions in Layered Materials (MXenes)

2020 ◽  
Vol MA2020-02 (3) ◽  
pp. 600-600
Author(s):  
Masashi Okubo ◽  
Atsuo Yamada
Keyword(s):  
Layered Materials ◽  
Aqueous Ions

High Resolution Electron Microscopy of internal interfaces in layered materials

1990 ◽  
Vol 48 (4) ◽  
pp. 320-321
Author(s):  
Yoichi Ishida ◽  
Hideki Ichinose ◽  
Yutaka Takahashi ◽  
Jin-yeh Wang
Keyword(s):  
Grain Boundaries ◽  
Mirror Symmetry ◽  
Functional Materials ◽  
High Resolution Electron Microscopy ◽  
Layered Materials ◽  
Plane Boundary ◽  
Chemical Information ◽  
Layer Plane ◽  
High Tc ◽  
Cubic Metals

Layered materials draw attention in recent years in response to the world-wide drive to discover new functional materials. High-Tc superconducting oxide is one example. Internal interfaces in such layered materials differ significantly from those of cubic metals. They are often parallel to the layer of the neighboring crystals in sintered samples(layer plane boundary), while periodically ordered interfaces with the two neighboring crystals in mirror symmetry to each other are relatively rare. Consequently, the atomistic features of the interface differ significantly from those of cubic metals. In this paper grain boundaries in sintered high-Tc superconducting oxides, joined interfaces between engineering ceramics with metals, and polytype interfaces in vapor-deposited bicrystal are examined to collect atomic information of the interfaces in layered materials. The analysis proved that they are not neccessarily more complicated than that of simple grain boundaries in cubic metals. The interfaces are majorly layer plane type which is parallel to the compound layer. Secondly, chemical information is often available, which helps the interpretation of the interface atomic structure.

Lightweight Layered Materials/Structures for Damage Tolerant Armor

2003 ◽  
Author(s):  
C. T. Sun ◽  
K. J. Bowman ◽  
J. F. Doyle ◽  
H. Espinosa ◽  
K. P. Trumble
Keyword(s):  
Layered Materials ◽  
Damage Tolerant

Dependence between calculated flexibility of lamellas of layered materials and their ability to undergo intercalation reactions

1991 ◽  
Vol 56 (12) ◽  
pp. 2859-2868 ◽  
Author(s):  
Jiří Votinský ◽  
Ludvík Beneš
Keyword(s):  
Computational Procedure ◽  
Layered Materials ◽  
Space Group

A computational procedure has been suggested enabling estimates of the flexibility of individual layered materials from their crystallographical structure. The data about flexibility of layers have been obtained by calculation for compounds of the type Q2Y3 (Q = SbIII, BiIII; Y = Se-II, Te-II; space group of symmetry R3m), MPS3 (M = MnII, FeII, CoII, NiII, CdII,C2/m), TX2 (T = NbIV, TaIV, MoV; X = S-II, Se-II; P63/mmc), FeOCl (Pmnm), Zr(HPO4)2 (P21/n) and ROPO4 (R = VV, NbV, Mo; P4/n). The flexibility of the layers of these compounds increases in the order: Q2Y3 << MPS3 < TX2 < FeOCl = Zr(HPO4)2 < ROPO4. The same trend is observed for the ability of these compounds to form intercalates. In most of the structures given a distinct anisotropy of flexibility has been found by the calculation.

scholarly journals WO3/p-Type-GR Layered Materials for Promoted Photocatalytic Antibiotic Degradation and Device for Mechanism Insight

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Wenfeng Zhao ◽  
Xiaowei Wang ◽  
Lizhe Ma ◽  
Xuanbo Wang ◽  
Weibin Wu ◽  
...  
Keyword(s):  
Layered Materials ◽  
P Type ◽  
Antibiotic Degradation

Development of photovoltaic solar cells based on heterostructure of layered materials: challenges and opportunities

2021 ◽  
Author(s):  
Priyanka Das ◽  
Sanjay K. Behura ◽  
Stephen A. McGill ◽  
Dharmaraj Raghavan ◽  
Alamgir Karim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Layered Materials ◽  
Challenges And Opportunities ◽  
Photovoltaic Solar Cells

scholarly journals Shear and Breathing Modes of Layered Materials

ACS Nano ◽  
2021 ◽  
Author(s):  
Giovanni Pizzi ◽  
Silvia Milana ◽  
Andrea C. Ferrari ◽  
Nicola Marzari ◽  
Marco Gibertini
Keyword(s):  
Layered Materials

scholarly journals Engineering symmetry breaking in 2D layered materials

2021 ◽  
Author(s):  
Luojun Du ◽  
Tawfique Hasan ◽  
Andres Castellanos-Gomez ◽  
Gui-Bin Liu ◽  
Yugui Yao ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Layered Materials ◽  
2D Layered Materials

scholarly journals Impact of tailored water chemistry aqueous ions on foam stability enhancement

2021 ◽  
Author(s):  
Zuhair AlYousef ◽  
Subhash Ayirala ◽  
Majed Almubarak ◽  
Dongkyu Cha
Keyword(s):  
Aqueous Solutions ◽  
Water Chemistry ◽  
Foam Stability ◽  
Chloride Salt ◽  
Foam Generation ◽  
Monovalent Ions ◽  
Injection Water ◽  
Foam Stabilization ◽  
Aqueous Ions ◽  
The Impact

AbstractGenerating strong and stable foam is necessary to achieve in-depth conformance control in the reservoir. Besides other parameters, the chemistry of injection water can significantly impact foam generation and stabilization. The tailored water chemistry was found to have good potential to improve foam stability. The objective of this study is to extensively evaluate the effect of different aqueous ions in the selected tailored water chemistry formulations on foam stabilization. Bulk and dynamic foam experiments were used to evaluate the impact of different tailored water chemistry aqueous ions on foam generation and stabilization. For bulk foam tests, the stability of foams generated using three surfactants and different aqueous ions was analyzed using bottle tests. For dynamic foam experiments, the tests were conducted using a microfluidic device. The results clearly demonstrated that the ionic content of aqueous solutions can significantly affect foam stabilization. The results revealed that the foam stabilization in bulk is different than that in porous media. Depending on the surfactant type, the divalent ions were found to have stronger influence on foam stabilization when compared to monovalent ions. The bulk foam results pointed out that the aqueous solutions containing calcium chloride salt (CaCl2) showed longer foam life with the anionic surfactant and very weak foam with the nonionic surfactant. The solutions with magnesium chloride (MgCl2) and CaCl2 salts displayed higher impact on foam stability in comparison with sodium chloride (NaCl) with the amphoteric alkyl amine surfactant. Less stable foams were generated with aqueous solutions comprising of both magnesium and calcium ions. In the microfluidic model, the solutions containing MgCl2 showed higher resistance to gas flow and subsequently higher mobility reduction factor for the injection gas when compared to those produced using NaCl and CaCl2 salts. This experimental study focusing about the role of different aqueous ions in the injection water on foam could help in better understanding the foam stabilization process. The new knowledge gained can also enable the selection and optimization of the right injection water chemistry and suitable chemicals for foam field applications.

scholarly journals Preparation of two-dimensional [Bi2O2]-based layered materials: Progress and prospects

APL Materials ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 060905
Author(s):  
Yan Liang ◽  
Xuehan Zhou ◽  
Wen Li ◽  
Hailin Peng
Keyword(s):  
Layered Materials ◽  
Two Dimensional
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