Formation of colloidal nanocrystal clusters of iron oxide by controlled ligand stripping

2016 ◽  
Vol 52 (1) ◽  
pp. 128-131 ◽  
Author(s):  
Junxiang Fu ◽  
Le He ◽  
Wenjing Xu ◽  
Jianle Zhuang ◽  
Xianfeng Yang ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Secondary Structures ◽  
Colloidal Nanocrystals ◽  
Stripping Method ◽  
The Creation

We report a “ligand stripping” method for the creation of secondary structures of colloidal nanocrystals.

A Multidentate Polymer Microreactor Route for Green Massive Fabrication of Mesoporous NaYF4 Clusters

2022 ◽  
Author(s):  
Yameng Li ◽  
Xiaozeng Zhang ◽  
Zhicong Chao ◽  
Minglong Gan ◽  
Jinsheng Liao ◽  
...  
Keyword(s):  
Secondary Structures ◽  
Colloidal Nanocrystals ◽  
The Creation

We report a ‘‘multidentate polymer microreactor’’ method for the creation of secondary structures of colloidal nanocrystals. Using NaYF4: Yb, Er as an example, we demonstrate that the use of sodium...

scholarly journals Shell-Induced Ostwald Ripening: Simultaneous Structure, Composition, and Morphology Transformations during the Creation of Hollow Iron Oxide Nanocapsules

ACS Nano ◽  
2018 ◽  
Vol 12 (9) ◽  
pp. 9051-9059 ◽  
Author(s):  
Lei Yu ◽  
Ruixin Han ◽  
Xiahan Sang ◽  
Jue Liu ◽  
Melonie P. Thomas ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Ostwald Ripening ◽  
The Creation

The role of affect in feelings of obligation

2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish
Keyword(s):  
Positive Emotions ◽  
The Creation ◽  
Sense Of Obligation

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.

TEM observation of iron oxide pillars in montmorillonite

1990 ◽  
Vol 48 (4) ◽  
pp. 882-883
Author(s):  
H. Mori ◽  
Y. Murata ◽  
H. Yoneyama ◽  
H. Fujita
Keyword(s):  
Aqueous Solution ◽  
Iron Oxide ◽  
Fine Particles ◽  
Aqueous Suspension ◽  
Volume Ratio ◽  
Exchange Capacity ◽  
Nano Composites ◽  
Pillared Montmorillonite ◽  
Topographic Features ◽  
Transmission Electron

Recently, a new sort of nano-composites has been prepared by incorporating such fine particles as metal oxide microcrystallites and organic polymers into the interlayer space of montmorillonite. Owing to their extremely large specific surface area, the nano-composites are finding wide application[1∼3]. However, the topographic features of the microstructures have not been elucidated as yet In the present work, the microstructures of iron oxide-pillared montmorillonite have been investigated by high-resolution transmission electron microscopy.Iron oxide-pillared montmorillonite was prepared through the procedure essentially the same as that reported by Yamanaka et al. Firstly, 0.125 M aqueous solution of trinuclear acetato-hydroxo iron(III) nitrate, [Fe3(OCOCH3)7 OH.2H2O]NO3, was prepared and then the solution was mixed with an aqueous suspension of 1 wt% clay by continuously stirring at 308 K. The final volume ratio of the latter aqueous solution to the former was 0.4. The clay used was sodium montmorillonite (Kunimine Industrial Co.), having a cation exchange capacity of 100 mequiv/100g. The montmorillonite in the mixed suspension was then centrifuged, followed by washing with deionized water. The washed samples were spread on glass plates, air dried, and then annealed at 673 K for 72 ks in air. The resultant film products were approximately 20 μm in thickness and brown in color.

Haydn: The Creation

1991 ◽  
Author(s):  
Nicholas Temperley
Keyword(s):  
The Creation
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