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Title: Single-source synthesis of ceramic oxide nanoparticles

Abstract

The tris(trimethylsilyl)silanol (H-SST) ligand can be reacted with a Group 4 or 5 metal alkoxides in a solvent to form an SST-modified metal alkoxide precursor. Exemplary Group 4 precursors include [Ti(SST)2(OR)2] (OR=OPri, OBut, ONep); [Ti(SST)3(OBun)]; [Zr(SST)2(OBut)2(py)]; [Zr(SST)3(OR)] (OR=OBut, ONep); [Hf(SST)2(OBut)2]; and [Hf(SST)2(ONep)2(py)n] (n=1, 2), where OPri=OCH(CH3)2, OBut=OC(CH3)3, OBun=O(CH2)3CH3, ONep=OCH2C(CH3)3, and py=pyridine. Exemplary Group 5 precursors include [V(SST)3(py)2]; [Nb(SST)3(OEt)2]; [Nb(O)(SST)3(py)]; 2[H][(Nb(μ-O)2(SST))6(μ6-O)]; [Nb8O10(OEt)18(SST)2.⅕Na2O]; [Ta(SST)(μ-OEt)(OEt)3]2; and [Ta(SST)3(OEt)2]; where OEt=OCH2CH3. When thermally processed, the precursors can form unusual core-shell nanoparticles. For example, HfO2/SiO2 core/shell nanoparticles have demonstrated resistance to damage in extreme irradiation and thermal environments.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576326
Patent Number(s):
10,407,347
Application Number:
15/901,776
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 2018 Feb 21
Country of Publication:
United States
Language:
English

Citation Formats

Boyle, Timothy J., Chan, Rana, Sears, Jeremiah Matthew, and Hernandez-Sanchez, Bernadette A. Single-source synthesis of ceramic oxide nanoparticles. United States: N. p., 2019. Web.
Boyle, Timothy J., Chan, Rana, Sears, Jeremiah Matthew, & Hernandez-Sanchez, Bernadette A. Single-source synthesis of ceramic oxide nanoparticles. United States.
Boyle, Timothy J., Chan, Rana, Sears, Jeremiah Matthew, and Hernandez-Sanchez, Bernadette A. Tue . "Single-source synthesis of ceramic oxide nanoparticles". United States. https://www.osti.gov/servlets/purl/1576326.
@article{osti_1576326,
title = {Single-source synthesis of ceramic oxide nanoparticles},
author = {Boyle, Timothy J. and Chan, Rana and Sears, Jeremiah Matthew and Hernandez-Sanchez, Bernadette A.},
abstractNote = {The tris(trimethylsilyl)silanol (H-SST) ligand can be reacted with a Group 4 or 5 metal alkoxides in a solvent to form an SST-modified metal alkoxide precursor. Exemplary Group 4 precursors include [Ti(SST)2(OR)2] (OR=OPri, OBut, ONep); [Ti(SST)3(OBun)]; [Zr(SST)2(OBut)2(py)]; [Zr(SST)3(OR)] (OR=OBut, ONep); [Hf(SST)2(OBut)2]; and [Hf(SST)2(ONep)2(py)n] (n=1, 2), where OPri=OCH(CH3)2, OBut=OC(CH3)3, OBun=O(CH2)3CH3, ONep=OCH2C(CH3)3, and py=pyridine. Exemplary Group 5 precursors include [V(SST)3(py)2]; [Nb(SST)3(OEt)2]; [Nb(O)(SST)3(py)]; 2[H][(Nb(μ-O)2(SST))6(μ6-O)]; [Nb8O10(OEt)18(SST)2.⅕Na2O]; [Ta(SST)(μ-OEt)(OEt)3]2; and [Ta(SST)3(OEt)2]; where OEt=OCH2CH3. When thermally processed, the precursors can form unusual core-shell nanoparticles. For example, HfO2/SiO2 core/shell nanoparticles have demonstrated resistance to damage in extreme irradiation and thermal environments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

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