%0 Journal Article
%T Preparation of Fe3O4 Film by in-situ Oxidative Hydrolysis on Chitosan
%A Suwei YAO
%A Zhaohui ZHAO
%A Weiguo ZHANG
%A Hongzhi WANG
%A <br>Suwei
%A YAO
%A Zhaohui
%A ZHAO
%A Weiguo
%A ZHANG
%A Hongzhi
%A WANG
%J 材料科学技术学报
%D 2006
%I 
%X The Fe3O4 films were prepared by in-situ oxidative hydrolysis on chitosan. The structures and characteristics of the prepared Fe3O4 films were investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM), atom force microscopy (AFM), vibrating sample magnetometry (VSM) and thermogravimetric-differential thermal analysis (TG-DTA). The results show that, (1) the as-synthesized Fe3O4 films are pure Fe3O4 with cubic inverse spinel structure; (2) the network structured film can be obtained at lower temperature, and the compact particle film at higher temperature; (3) the prepared Fe3O4 films are super-paramagnetic, and the saturation magnetization is improved with increasing the reaction temperature, which is 49.03 emu/g at 80℃;(4) the temperature of phase transformation from Fe3O4 to α-Fe2O3 is about 495℃. Besides, the formation mechanism of Fe3O4 film was also proposed.
%K Fe3O4 film
%K In-situ
%K Oxidative hydrolysis
%K Chitosan<br>四氧化三铁薄膜
%K 制备
%K 原位氧化水解法
%K 壳聚糖
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=553B28CFD9AC22B4D0890920D8FBC6B7&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=38B194292C032A66&sid=C6EC7357BCACD3A4&eid=2E01F39B6CBD53DE&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=20