Morphology-Dependent Ullmann C-O Arylation Using Cu2O Nanocrystals
Author
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Five different copper-oxide nanocrystals were prepared by colloidal synthesis to form either cubic, octahedral, rhombic dodecahedral, truncated cubic, or fluffy sphere structures.
These Cu-oxide nanocrystals were characterised using scanning electron microscopy, X-ray photoelectron spectroscopy, and UV-vis.
The SEM images show that the Cu2O nanocrystals are relatively uniform and all the crystals have a particle mean diameter below 1000 nm.
The smallest particle mean diameter is 411 nm for the rhombic dodecahedral crystals, while the octahedral crystal displays the largest particle mean diameter of 864 nm.
The XPS results indicate that the copper is primarily CuI in Cu2O, but some as CuII are also present.
The apparent optical band gap energies could be determined from the optical properties of the five Cu-oxide nanocrystals, using the classical Tauc equation.
The apparent optical band gap energies ranged between 2.04 and 2.14 eV.
The Ullmann C-O coupling reaction was used to investigate the catalytic performance of the Cu-oxide nanocrystals.
The fluffy sphere gave the highest % conversion, while the rhombic dodecahedral showed the lowest conversion.
American Psychological Association (APA)
Erasmus, E.. 2020. Morphology-Dependent Ullmann C-O Arylation Using Cu2O Nanocrystals. Journal of Nanomaterials،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1188517
Modern Language Association (MLA)
Erasmus, E.. Morphology-Dependent Ullmann C-O Arylation Using Cu2O Nanocrystals. Journal of Nanomaterials No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1188517
American Medical Association (AMA)
Erasmus, E.. Morphology-Dependent Ullmann C-O Arylation Using Cu2O Nanocrystals. Journal of Nanomaterials. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1188517
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1188517