Formation of Eu₂O₃ Nanorods through Solvothermal Routes by Surfactant Assistance

Abstract

Eu 2 O 3 nanorods were synthesized and characterized. The crystallites of Eu 2 O(CO 3 ) 2 •H 2 O nanorods and Eu 2 O 3 nanorods were obtained by means of surfactant assistance, with aqueous butanol solution as the solvent and hexamethylene tetramine as the base. The characteristics of the nanorods were analyzed by transmission electron microscopy, high-resolution transmission electron microscopy, scanning electron microscopy and X-ray diffraction. The Eu 2 O 3 nanorod is about 80-300 nm in diameter and 1-5 µm in length. The formation mechanism of the 1D products was also proposed.

Thin Film Deposition and Photodissociation Mechanisms for Lanthanide Oxide Production from Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)Ln(III) in Laser-Assisted MOCVD

“…The observed 4.27 Å is potentially a match (within the 1% error bars) for d = 4.24 Å in Eu 2 O(CO 3 ) 2 ·H 2 O. These carbonate species are likely products of reaction of Eu 2 O 3 with atmospheric CO 2 and H 2 O as has been previously documented. , However, reaction of deposited carbide, EuC 2 with atmospheric oxygen might also be considered.…”

“…Laser-assisted MOCVD, using the Eu(thd) 3 precursor and a silica substrate, with subsequent exposure to atmosphere, produces a sparse coverage of amorphous Eu 2 O 3 with small areas of crystallinity consistent with formation of the carbonate, Eu 2 O(CO 3 ) 2 and its hydrate Eu 2 O(CO 3 ) 2 ·H 2 O, expected products of reaction of high surface area Eu 2 O 3 with atmospheric CO 2 and H 2 O. , …”

Hot deformation and processing map of 2519A aluminum alloy

“…There have been some researches on the flow stress of aluminum alloy during hot deformation process [8][9][10]. The processing map on the basis of the dynamic materials model (DMM) is considered to be better than Ashby's map and Raj's map [11]. By using the map, the deformation mechanisms in varied deformation conditions can be predicted, and the instable deformation zones that should be avoided during hot deformation process can be received.…”

Discovery and Comparison of Homogeneous Catalysts in a Standardized HOT‐CAT Screen with Microwave‐Heating and qNMR Analysis: Exploring Catalytic Hydration of Alkynes

“…Group 1−6 metals and lanthanides . Reported alkyne hydration activity among early transition metals (groups 3–5), the lanthanides and main group metals is limited to acidic systems at low water content, conditions deliberately not reflected by our screening conditions. The preliminary screen (see Table S1, entries 3–17) indicated low activity for Ce(OTf) 3 (1 % ketone), Ce(SO 4 ) 2 ⋅4 H 2 O (1 %), Al(OTf) 3 (2 %), Bi(OTf) 3 (≤1 %), but none for La(OTf) 3 , Eu(hfc) 3 or Yb(OTf) 3 .…”