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Synthesis of Biomorphic ZrO2-CeO2 Nanostructures by Silkworm Silk Template
Zong-jian Zhang,Jia Li*,Fu-sheng Sun,Dickon H. L. Ng,Fung Luen Kwong
Author NameAffiliationE-mail
Zong-jian Zhang School of Materials Science and Engineering, University of Ji'nan, Ji'nan 250022, China  
Jia Li* School of Materials Science and Engineering, University of Ji'nan, Ji'nan 250022, China ljn1964@gmail.com 
Fu-sheng Sun School of Materials Science and Engineering, University of Ji'nan, Ji'nan 250022, China  
Dickon H. L. Ng Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China  
Fung Luen Kwong Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China  
Abstract:
A simple and green technique has been developed to prepare hierarchical biomorphic ZrO2- CeO2, using silkworm silk as the template. Different from traditional immersion technics, the whole synthesis process depends more on the restriction or direction functions of the silkworm silk template. The analytic results showed that ZrO2-CeO2 exhibited a well-crystallized hierarchically interwoven hollow fiber structure with 16-28 μm in diameter. The grain size of the sample calcined at 800 oC was about 14 nm. Consequently, the interwoven meshwork at three dimensions is formed due to the direction of biotemplate. The action mechanism is summarily discussed here. It may bring the biomorphic ZrO2-CeO2 nanomaterials with hierarchical interwoven structures to more applications, such as catalysts.
Key words:  Nanomaterial, Catalyst, ZrO2-CeO2, Biomorphic, Silkworm silk template
FundProject:
Synthesis of Biomorphic ZrO2-CeO2 Nanostructures by Silkworm Silk Template
张宗见,李嘉*,孙富升,吴恒亮,邝丰栾
摘要:
以桑蚕丝为模板制备多级生物形态结构ZrO2-CeO2. 整个合成过程是由桑蚕丝模板的导向作用决定的. 分析结果表明ZrO2-CeO2结晶良好,呈多级网络中空纤维结构,直径为16~28μm,800 oC煅烧后ZrO2-CeO2晶粒尺寸约为14 nm.
关键词:  纳米材料,催化剂,氧化锆-氧化铈,生物形态,桑蚕丝模板
DOI:10.1088/1674-0068/23/03/351-354
分类号: