| 静电纺丝结合溶胶-凝胶法制备MgNb2O6陶瓷纤维(英文) |
| Synthesis of MgNb2O6 Ceramic Fibers by Electrospinning with Sol-gel Process |
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| 摘要: 以五氧化二铌(Nb2O5)和氧化镁(MgO)为原料，柠檬酸作配位剂，采用静电纺丝结合溶胶-凝胶法制备了铌酸镁(MgNb2O6)陶瓷纤维。在本合成体系中，高质量Nb5+溶液的获得是形成MgNb2O6前驱体溶胶的关键步骤。通过TGA，FTIR，XRD，TEM以及SEM技术对纤维的形貌，微观结构以及组成进行了表征。结果表明，900 ℃烧结以后得到的MgNb2O6纤维长度约为10 cm，具有中空结构，壁厚约为800 nm。 |
| 关键词: MgNb2O6 纤维 静电纺丝 合成 |
| 基金项目: |
| Abstract: MgNb2O6 ceramic fibers were synthesized using niobium oxide and magnesium oxide as starting materials by the electrospinning with sol-gel process. Citric acid was used as the chelating reagent to coordinate to the metal ions. The key step to the formation of MgNb2O6 precursor sols is to obtain a high quality solution of Nb5+. The morphology, structure, and composition of MgNb2O6 fibers were characterized by TGA, FTIR, XRD, TEM and SEM techniques. The results show that MgNb2O6 fibers calcined at 900 ℃ with length in the order of 10 cm have the hollow structure and are composed of nanoparticles (particle size ＜100 nm) and the thickness of the wall is no more than 800 nm. |
| Keywords: MgNb2O6 fiber electrospinning synthesis |
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| 卢启芳,刘素文.静电纺丝结合溶胶-凝胶法制备MgNb2O6陶瓷纤维(英文)[J].无机化学学报,2011,27(10):2066-2070. |
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