scholarly journals Mechanistic studies on lithium intercalation in a lithium-rich layered material using Li2RuO3epitaxial film electrodes and in situ surface X-ray analysis

2014 ◽  
Vol 2 (42) ◽  
pp. 17875-17882 ◽  
Author(s):  
Sou Taminato ◽  
Masaaki Hirayama ◽  
Kota Suzuki ◽  
KyungSu Kim ◽  
Yueming Zheng ◽  
...  
Keyword(s):  
Layered Material ◽  
Lithium Intercalation ◽  
Mechanistic Studies ◽  
X Ray

In-Situ X-ray Diffraction Study of Lithium Intercalation in Nanostructured Anatase Titanium dioxide

1998 ◽  
Vol 536 ◽  
Author(s):  
R. Van de Krol ◽  
E. A. Meulenkamp ◽  
A. Goossens ◽  
J. Schoonman
Keyword(s):  
Phase Transformation ◽  
Maximum Amount ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Before And After ◽  
The Difference ◽  
Two Phases ◽  
Reversible Phase

AbstractElectrochemical lithium intercalation in nanostructured anatase TiO2 is investigated with in-situ X-ray diffraction. A complete and reversible phase transformation from tetragonal anatase TiO2 to orthorhombic anatase Li0.5TiO2 is observed. The difference of the XRD spectra before and after insertion can be fitted with the lattice parameters of the two phases as fit parameters. The maximum amount of lithium that can be dissolved in anatase TiO2 before the phase transformation occurs is found to be very small.

Controlled Growth of Imine-Linked Two-Dimensional Covalent Organic Framework Nanoparticles

2019 ◽  
Author(s):  
Rebecca Li ◽  
Nathan C. Flanders ◽  
Austin Evans ◽  
Woojung Ji ◽  
Ioannina Castano ◽  
...  
Keyword(s):  
High Surface ◽  
High Surface Area ◽  
Particle Growth ◽  
Emergent Properties ◽  
Mechanistic Studies ◽  
X Ray ◽  
X Ray Scattering ◽  
Exchange Processes ◽  
And Control

Covalent organic frameworks (COFs) consist of monomers arranged in predictable structures with emergent properties. However, improved crystallinity, porosity, and solution processability remain major challenges. To this end, colloidal COF nanoparticles are useful for mechanistic studies of nucleation and growth and enable advanced spectroscopy and solution processing of thin films. Here we present a general approach to synthesize imine-linked 2D COF nanoparticles and control their size by favoring imine polymerization while preventing the nucleation of new particles. The method yields uniform, crystalline, and high-surface-area particles and is applicable to several imine-linked COFs. In situ X-ray scattering experiments reveal the nucleation of amorphous polymers, which crystallize via imine exchange processes during and after particle growth, consistent with previous mechanistic studies of imine-linked COF powders. The separation of particle formation and growth processes offers control of particle size and may enable further improvements in crystallinity in the future.

In Situ X‐Ray Absorption Spectroscopy Characterization of  V 2 O 5 Xerogel Cathodes upon Lithium Intercalation

1999 ◽  
Vol 146 (7) ◽  
pp. 2387-2392 ◽  
Author(s):  
Marco Giorgetti ◽  
Stefano Passerini ◽  
William H. Smyrl ◽  
Sanjeev Mukerjee ◽  
X. Q. Yang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Lithium Intercalation ◽  
X Ray ◽  
X Ray Absorption

ChemInform Abstract: In situ X-Ray Absorption Spectroscopy Characterization of V2O5 Xerogel Cathodes Upon Lithium Intercalation.

ChemInform ◽  
2010 ◽  
Vol 30 (44) ◽  
pp. no-no ◽  
Author(s):  
Marco Giorgetti ◽  
Stefano Passerini ◽  
William H. Smyrl ◽  
Sanjeev Mukerjee ◽  
X. Q. Yang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Lithium Intercalation ◽  
X Ray ◽  
V2o5 Xerogel ◽  
X Ray Absorption

In situ X-ray diffraction experiments on lithium intercalation compounds

1982 ◽  
Vol 60 (3) ◽  
pp. 307-313 ◽  
Author(s):  
J. R. Dahn ◽  
M. A. Py ◽  
R. R. Haering
Keyword(s):  
Electrochemical Cell ◽  
Lithium Concentration ◽  
Host Lattice ◽  
Intercalation Compounds ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
Detailed Design ◽  
X Ray

We describe powder X-ray diffraction experiments on lithium intercalation compounds. Using a unique electrochemical cell which incorporates a beryllium X-ray window we are able to monitor changes in the host lattice which occur when the lithium concentration is altered electrochemically. The detailed design of the cells and experimental problems which arise when using the in situ X-ray diffraction technique are discussed. Results of experiments on LixTiS2 are reported for 0 ≤ x ≤ 2.

scholarly journals The Reaction Mechanism of a Complex Intercalation System: In Situ X-ray Diffraction Studies of the Chemical and Electrochemical Lithium Intercalation in Cr4TiSe8

2006 ◽  
Vol 12 (24) ◽  
pp. 6348-6355 ◽  
Author(s):  
Malte Behrens ◽  
Ragnar Kiebach ◽  
Jannes Ophey ◽  
Oliver Riemenschneider ◽  
Wolfgang Bensch
Keyword(s):  
Reaction Mechanism ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray

Controlled Growth of Imine-Linked Two-Dimensional Covalent Organic Framework Nanoparticles

2019 ◽  
Author(s):  
Rebecca Li ◽  
Nathan C. Flanders ◽  
Austin Evans ◽  
Woojung Ji ◽  
Ioannina Castano ◽  
...  
Keyword(s):  
High Surface ◽  
High Surface Area ◽  
Particle Growth ◽  
Emergent Properties ◽  
Mechanistic Studies ◽  
X Ray ◽  
X Ray Scattering ◽  
Exchange Processes ◽  
And Control

Covalent organic frameworks (COFs) consist of monomers arranged in predictable structures with emergent properties. However, improved crystallinity, porosity, and solution processability remain major challenges. To this end, colloidal COF nanoparticles are useful for mechanistic studies of nucleation and growth and enable advanced spectroscopy and solution processing of thin films. Here we present a general approach to synthesize imine-linked 2D COF nanoparticles and control their size by favoring imine polymerization while preventing the nucleation of new particles. The method yields uniform, crystalline, and high-surface-area particles and is applicable to several imine-linked COFs. In situ X-ray scattering experiments reveal the nucleation of amorphous polymers, which crystallize via imine exchange processes during and after particle growth, consistent with previous mechanistic studies of imine-linked COF powders. The separation of particle formation and growth processes offers control of particle size and may enable further improvements in crystallinity in the future.

scholarly journals In situ X-ray spatial profiling reveals uneven compression of electrode assemblies and steep lateral gradients in lithium-ion coin cells

2020 ◽  
Vol 22 (38) ◽  
pp. 21977-21987 ◽  
Author(s):  
John S. Okasinski ◽  
Ilya A. Shkrob ◽  
Andrew Chuang ◽  
Marco-Tulio Fonseca Rodrigues ◽  
Abhi Raj ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Lithium Intercalation ◽  
Lateral Heterogeneity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fast Charge ◽  
Spatial Profiling ◽  
Electrode Assemblies ◽  
Li Ion

In situ X-ray diffraction profilometry reveals radially nonuniform compression of the electrode assembly leading to large lateral heterogeneity of lithium intercalation and plating in the standard Li-ion coin cells in fast charge regimes.

In Situ X‐Ray Diffraction of Lithium Intercalation in Nanostructured and Thin Film Anatase TiO2

1999 ◽  
Vol 146 (9) ◽  
pp. 3150-3154 ◽  
Author(s):  
Roel van de Krol ◽  
Albert Goossens ◽  
Eric A. Meulenkamp
Keyword(s):  
Thin Film ◽  
Anatase Tio2 ◽  
Lithium Intercalation ◽  
X Ray Diffraction ◽  
X Ray
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