scholarly journals Controllable Fabrication of Calcium Carbonate Hollow Microspheres with Micro-nano Hierarchical Structure

2016 ◽  
Vol 31 (7) ◽  
pp. 711 ◽  
Author(s):  
ZOU Jian-Peng ◽  
YANG Hong-Zhi ◽  
XIAO Ping ◽  
PAN Yi-Feng
Keyword(s):  
Calcium Carbonate ◽  
Hierarchical Structure ◽  
Hollow Microspheres ◽  
Controllable Fabrication

Controlled preparation of micro–nano hierarchical hollow calcium carbonate microspheres by pressurized-CO2 carbonization and their CaCO3:Eu3+ photoluminescence properties

CrystEngComm ◽  
2021 ◽  
Vol 23 (16) ◽  
pp. 3033-3042
Author(s):  
Liubin Shi ◽  
Mingde Tang ◽  
Yaseen Muhammad ◽  
Yong Tang ◽  
Lulu He ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Calcium Carbonate ◽  
Calcium Hydroxide ◽  
Hierarchical Structure ◽  
Ethylenediaminetetraacetic Acid ◽  
Disodium Salt ◽  
Hollow Microspheres ◽  
Photoluminescence Properties ◽  
Controlled Preparation

Herein, calcium carbonate hollow microspheres with a micro–nano hierarchical structure were successfully synthesized using disodium salt of ethylenediaminetetraacetic acid (EDTA-2Na) as an additive, by bubbling pressurized carbon dioxide and calcium hydroxide at 120 °C.

Preparation and formation mechanism of calcium carbonate hollow microspheres

2020 ◽  
Vol 549 ◽  
pp. 125870 ◽  
Author(s):  
Tianwen Zheng ◽  
Haihe Yi ◽  
Shiyi Zhang ◽  
Chunguang Wang
Keyword(s):  
Calcium Carbonate ◽  
Formation Mechanism ◽  
Hollow Microspheres

Engineering of multi-shelled SnO2 hollow microspheres for highly stable lithium-ion batteries

2016 ◽  
Vol 4 (45) ◽  
pp. 17673-17677 ◽  
Author(s):  
Jian Zhang ◽  
Hao Ren ◽  
Jiangyan Wang ◽  
Jian Qi ◽  
Ranbo Yu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
Lithium Ion ◽  
Hollow Microspheres ◽  
Lithium Insertion ◽  
Extraction Processes

Triple-shelled SnO2 hollow microspheres not only maintain a hierarchical structure during lithium insertion and extraction processes, but also improve the capacity of lithium-ion batteries.

scholarly journals Chiral acidic amino acids induce chiral hierarchical structure in calcium carbonate

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Wenge Jiang ◽  
Michael S. Pacella ◽  
Dimitra Athanasiadou ◽  
Valentin Nelea ◽  
Hojatollah Vali ◽  
...  
Keyword(s):  
Amino Acids ◽  
Calcium Carbonate ◽  
Hierarchical Structure ◽  
Acidic Amino Acids

Controllable fabrication of LiMnPO4 microspheres assembled by radially arranged nanoplates with highly exposed (010) facets for an enhanced electrochemical performance

CrystEngComm ◽  
2019 ◽  
Vol 21 (47) ◽  
pp. 7217-7223
Author(s):  
Xiaoliang Pan ◽  
Zhi Gao ◽  
Lijun Liu ◽  
Shikun Xie ◽  
Huiling Yuan ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Rate Capability ◽  
Hollow Microspheres ◽  
Controllable Fabrication ◽  
Enhanced Electrochemical Performance

LiMnPO4 hollow microspheres assembled by radially aligned nanoplates with a high percentage of exposed (010) facets are prepared to improve the rate capability.

Controllable fabrication of monodisperse Co–B hollow microspheres

2008 ◽  
Vol 62 (28) ◽  
pp. 4371-4373 ◽  
Author(s):  
Dan Song ◽  
Xiaojuan Zhang ◽  
Wei Jiang ◽  
Yan Yuan ◽  
Yong Liu ◽  
...  
Keyword(s):  
Hollow Microspheres ◽  
Controllable Fabrication

Relationships between hierarchical structure and properties in macromolecular systems

1987 ◽  
Vol 45 ◽  
pp. 440-443
Author(s):  
E. Baer
Keyword(s):  
Uniaxial Tension ◽  
Hierarchical Structure ◽  
Inorganic Material ◽  
Hierarchical Structures ◽  
Bone Collagen ◽  
Structure And Properties ◽  
Connective Tissues ◽  
Scale Level ◽  
Fibrous Protein ◽  
Macromolecular Systems

The most advanced macromolecular materials are found in plants and animals, and certainly the connective tissues in mammals are amongst the most advanced macromolecular composites known to mankind. The efficient use of collagen, a fibrous protein, in the design of both soft and hard connective tissues is worthy of comment. Very crudely, in bone collagen serves as a highly efficient binder for the inorganic hydroxyappatite which stiffens the structure. The interactions between the organic fiber of collagen and the inorganic material seem to occur at the nano (scale) level of organization. Epitatic crystallization of the inorganic phase on the fibers has been reported to give a highly anisotropic, stress responsive, structure. Soft connective tissues also have sophisticated oriented hierarchical structures. The collagen fibers are “glued” together by a highly hydrated gel-like proteoglycan matrix. One of the simplest structures of this type is tendon which functions primarily in uniaxial tension as a reinforced elastomeric cable between muscle and bone.

A TEM study of the microstructure of avian eggshells

1992 ◽  
Vol 50 (2) ◽  
pp. 1102-1103
Author(s):  
S. Q. Xiao ◽  
S. Baden ◽  
A. H. Heuer
Keyword(s):  
Electron Microscope ◽  
Calcium Carbonate ◽  
Nucleation And Growth ◽  
Growth Mechanisms ◽  
Shell Surface ◽  
Thin Sections ◽  
Polycrystalline Metals ◽  
Transmission Electron ◽  
Nucleation And Growth Mechanisms

The avian eggshell is one of the most rapidly mineralizing biological systems known. In situ, 5g of calcium carbonate are crystallized in less than 20 hrs to fabricate the shell. Although there have been much work about the formation of eggshells, controversy about the nucleation and growth mechanisms of the calcite crystals, and their texture in the eggshell, still remain unclear. In this report the microstructure and microchemistry of avian eggshells have been analyzed using transmission electron microscope (TEM) and energy dispersive spectroscopy (EDS).Fresh white and dry brown eggshells were broken and fixed in Karnosky's fixative (kaltitanden) for 2 hrs, then rinsed in distilled H2O. Small speckles of the eggshells were embedded in Spurr medium and thin sections were made ultramicrotome.The crystalline part of eggshells are composed of many small plate-like calcite grains, whose plate normals are approximately parallel to the shell surface. The sizes of the grains are about 0.3×0.3×1 μm3 (Fig.l). These grains are not as closely packed as man-made polycrystalline metals and ceramics, and small gaps between adjacent grains are visible indicating the absence of conventional grain boundaries.

Sign in / Sign up

Export Citation Format

Share Document