Undercooling-directed NaCl crystallization: an approach towards nanocavity-linked graphene networks for fast lithium and sodium storage

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7622-7630 ◽  
Author(s):  
Yaxin Chen ◽  
Liluo Shi ◽  
Da Li ◽  
Yue Dong ◽  
Qiong Yuan ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Inorganic Salts ◽  
Kinetic Control ◽  
Key Steps ◽  
Templated Materials ◽  
Sodium Storage

Despite the crystallization of inorganic salts being technologically related to the fabrication of salt-templated materials, the two key steps, nucleation and crystal growth, still lack the kinetic control to enable precise design of salt scaffolds.

scholarly journals Kinetic control on the distribution of secondary precipitates during CO2-basalt interactions

2019 ◽  
Vol 98 ◽  
pp. 04006 ◽  
Author(s):  
Helge Hellevang ◽  
Domenik Wolff-Boenisch ◽  
Mohammad Nooraiepour
Keyword(s):  
Spatial Distribution ◽  
Crystal Growth ◽  
Numerical Study ◽  
Numerical Models ◽  
Probabilistic Approach ◽  
Kinetic Control ◽  
Secondary Mineral ◽  
Mineral Growth ◽  
Secondary Precipitates ◽  
Overall Kinetics

A combined experimental and numerical study was undertaken to better understand the spatial distribution of secondary mineral growth along a basalt column. The work demonstrated that few and large crystals formed at random locations. This can only be explained in terms of an overall control by mineral nucleation. The main implication is that a new probabilistic approach must be developed in order to get the overall kinetics and the distribution of crystal growth in the numerical models right.

scholarly journals Crystal Growth: Controlling the Growth of Ni3 S2 Anode with Tunable Sodium Storage (Adv. Mater. Interfaces 11/2018)

2018 ◽  
Vol 5 (11) ◽  
pp. 1870055
Author(s):  
Xiaosheng Song ◽  
Xifei Li ◽  
Zhimin Bai ◽  
Bo Yan ◽  
Dejun Li
Keyword(s):  
Crystal Growth ◽  
Sodium Storage

Thermodynamic and kinetic control of crystal growth in CdS nanomaterials

2008 ◽  
Vol 18 (14) ◽  
pp. 1689 ◽  
Author(s):  
P. Christian ◽  
P. O'Brien
Keyword(s):  
Crystal Growth ◽  
Kinetic Control

scholarly journals A Critical Review on Crystal Growth Techniques for Scalable Deposition of Photovoltaic Perovskite Thin Films

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4851
Author(s):  
Mazhar Abbas ◽  
Linxiang Zeng ◽  
Fei Guo ◽  
Muhammad Rauf ◽  
Xiao-Cong Yuan ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Crystal Growth ◽  
High Performance ◽  
Large Scale ◽  
Film Formation ◽  
Perovskite Solar Cells ◽  
Large Area ◽  
Gas Blowing ◽  
Key Steps

Although the efficiency of small-size perovskite solar cells (PSCs) has reached an incredible level of 25.25%, there is still a substantial loss in performance when switching from small size devices to large-scale solar modules. The large efficiency deficit is primarily associated with the big challenge of coating homogeneous, large-area, high-quality thin films via scalable processes. Here, we provide a comprehensive understanding of the nucleation and crystal growth kinetics, which are the key steps for perovskite film formation. Several thin-film crystallization techniques, including antisolvent, hot-casting, vacuum quenching, and gas blowing, are then summarized to distinguish their applications for scalable fabrication of perovskite thin films. In viewing the essential importance of the film morphology on device performance, several strategies including additive engineering, Lewis acid-based approach, solvent annealing, etc., which are capable of modulating the crystal morphology of perovskite film, are discussed. Finally, we summarize the recent progress in the scalable deposition of large-scale perovskite thin film for high-performance devices.

The nature and significance of illite associated with quartz- hematite hydrothermal veins in the St. Austell pluton, Cornwall, England

Clay Minerals ◽  
2001 ◽  
Vol 36 (4) ◽  
pp. 585-597 ◽  
Author(s):  
A. Psyrillos ◽  
D. A. C. Manning ◽  
S. D. Burley
Keyword(s):  
Crystal Growth ◽  
Hydrothermal Fluids ◽  
Kinetic Control ◽  
Mineral Precipitation ◽  
Hydrothermal Veins

AbstractQuartz-hematite veins in the St. Austell pluton feature an assemblage of authigenic kaolin, illite, chlorite and hematite. Similar assemblages occur in altered granites adjacent to the veins. Complex textures in the veins and altered granites show that kaolin was an initial precipitate from hydrothermal fluids that was subsequently replaced by illite, hematite and chlorite. The sequence of mineral precipitation reflects a kinetic control on crystal growth, with early nonequilibrium precipitation of kaolin from fluids with compositions appropriate for the equilibrium formation of illite. Hematite formed under relatively oxidizing conditions that subsequently became more reducing to permit the late precipitation of chlorite. Illite associated with the quartz-hematite veins differs texturally, mineralogically and chemically from the coarsely crystalline hydrothermal muscovite (sericite or gilbertite) associated with quartz-tourmaline veins and greisen. Quartzhematite veins are thus considered to record a distinct mineralization event that is not related to the early greisenization or the economic kaolinization.

scholarly journals Linking Additive Structures to Nanoparticle Properties

2005 ◽  
Vol 23 ◽  
pp. 51-54
Author(s):  
William R. Richmond ◽  
Gordon M. Parkinson ◽  
Franca Jones ◽  
Mark I. Ogden ◽  
Allan Oliveira ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Molecular Modeling ◽  
Barium Sulfate ◽  
Structural Features ◽  
Inorganic Salts ◽  
Systematic Design ◽  
Additive Structure ◽  
Afm Imaging ◽  
Insight Into

The effects of a series of polyphosphonate and poly-carboxylate additives have been investigated in the crystallization of various inorganic salts. Systematic variation of the additive structure has been used to provide insight into the dominant factors in additive-crystal interactions. The results obtained for barium sulfate and hematite (α-Fe2O3) show that the morphological effects do not necessarily follow the trend one might expect on the basis of the structural features of the additives. Molecular modeling, coupled with in-situ AFM imaging is being used to develop an approach that will allow more informed systematic design of crystal growth modifiers.

Montmorillonite Dendrites

1974 ◽  
Vol 32 ◽  
pp. 454-455
Author(s):  
Necip Güven ◽  
Rodney W. Pease
Keyword(s):  
Crystal Growth ◽  
Growth Mechanism ◽  
Growth Front ◽  
Morphological Features ◽  
Dendritic Crystal ◽  
Crystal Growth Mechanism

Morphological features of montmorillonite aggregates in a large number of samples suggest that they may be formed by a dendritic crystal growth mechanism (i.e., tree-like growth by branching of a growth front).

TEM and cathodoluminescence of precipitates in II-VI semiconductors

1988 ◽  
Vol 46 ◽  
pp. 488-489
Author(s):  
Joanna L. Batstone
Keyword(s):  
Crystal Growth ◽  
Band Gap ◽  
Local Strain ◽  
Wide Band ◽  
Optoelectronic Device ◽  
Wide Band Gap ◽  
Bulk Crystal Growth ◽  
Transmission Electron ◽  
Device Applications ◽  
Stoichiometry Control

Interest in II-VI semiconductors centres around optoelectronic device applications. The wide band gap II-VI semiconductors such as ZnS, ZnSe and ZnTe have been used in lasers and electroluminescent displays yielding room temperature blue luminescence. The narrow gap II-VI semiconductors such as CdTe and HgxCd1-x Te are currently used for infrared detectors, where the band gap can be varied continuously by changing the alloy composition x.Two major sources of precipitation can be identified in II-VI materials; (i) dopant introduction leading to local variations in concentration and subsequent precipitation and (ii) Te precipitation in ZnTe, CdTe and HgCdTe due to native point defects which arise from problems associated with stoichiometry control during crystal growth. Precipitation is observed in both bulk crystal growth and epitaxial growth and is frequently associated with segregation and precipitation at dislocations and grain boundaries. Precipitation has been observed using transmission electron microscopy (TEM) which is sensitive to local strain fields around inclusions.

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