Metal-containing ceramic nanocomposites synthesized from metal acetates and polysilazane

被引：18

作者：

Wang, Jun ^{[1
]}

Schoelch, Valerie ^{[1
]}

Goerke, Oliver ^{[1
]}

Schuck, Goetz ^{[2
]}

Wang, Xifan ^{[1
]}

Shao, Gaofeng ^{[1
]}

Schorr, Susan ^{[2
,3
]}

Bekheet, Maged F. ^{[1
]}

Gurlo, Aleksander ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Werkstoffwissensch & Technol, Chair Adv Ceram Mat, Fachgebiet Keram Werkstoffe, Hardenbergstr 40, D-10623 Berlin, Germany

[2] Helmholtz Zentrum Berlin Mat & Energie, Hahn Meitner Platz 1, D-14109 Berlin, Germany

[3] Free Univ Berlin, Dept Geosci, Malteserstr 74-100, D-12249 Berlin, Germany

来源：

OPEN CERAMICS | 2020年 / 1卷

关键词：

Poly(vinyl)silazane; Metal acetates; Metal-containing precursors; Polymer-derived ceramics; Metal; Metal silicide; Nanocomposites; POLYMER-DERIVED CERAMICS; FILLER-CONTROLLED PYROLYSIS; SOURCE-PRECURSOR SYNTHESIS; MAGNETIC-PROPERTIES; SILICON; COMPOSITES; NANOPARTICLES; STABILITY; PALLADIUM; FE;

D O I：

10.1016/j.oceram.2020.100001

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Metal-containing (Mn, Fe, Co, Cu, Zn and Ag) polysilazane precursors are synthesized via one-step chemical reaction of metal acetates with poly(vinyl)silazane (Durazane 1800) at room temperature under argon atmosphere. The ATR-FTIR spectra of the synthesized metal-containing precursors reveal that the metal acetates used in the synthesis catalyze the hydrosilylation reaction between -Si-H and-Si-CH--CH2 groups in polysilazane. The XPS and XRD characterizations indicate that the metallic phase is directly generated in precursors after the reaction of Durazane 1800 polymer with Fe(CH3COO)2, Co(CH3COO)2 & sdot;4H2O, CuCH3COO, Cu(CH3COO)2, AgCH3COO. Ceramic nanocomposites containing either metal or metal silicide are obtained after the pyrolysis of the synthesized metal-containing precursors at 700 degrees C and 1100 degrees C under argon atmosphere.

引用

页数：11