| mPAM/mCMC双极膜电解槽中MnO2电催化氧化制备甘油醛 |
| |
| 引用本文： | 蔡燕红,陈日耀,郑曦,陈晓,陈震.mPAM/mCMC双极膜电解槽中MnO2电催化氧化制备甘油醛[J].化学学报,2009,67(10):1127-1133. |
| |
| 作者姓名： | 蔡燕红 陈日耀 郑曦 陈晓 陈震 |
| |
| 作者单位： | 福建师范大学化学与材料学院,福州,350007 |
| |
| 基金项目： | 福建省科技厅福建省自然科学基金，福建省教育厅 |
| |
| 摘 要： | 分别以FeCl3和戊二醛等对羧甲基纤维素(CMC)和聚丙烯酰胺(PAM)进行改性, 制备了mPAM/mCMC双极膜. 测定了PAM、CMC胶体的电荷密度, mPAM/mCMC双极膜离子交换能力、I-V工作曲线等参数. 用扫描电镜和红外光谱对膜形貌与成分作表征, 膜厚≈260 μm, 中间界面层厚为纳米级. 热重分析表明膜具有较好的热稳定性. 以mPAM/mCMC双极膜为电解槽的隔膜, 间接电氧化甘油为甘油醛. 在电场的作用下, 双极膜中间层中的水离解产生H＋和OH−, OH−及时地传输入阳极室, 中和了电生成甘油醛时生成的H＋, 促进了正向反应的进行. 槽电压稳定, 产率达91.6%, 电流效率为65.5%.
|
| 关 键 词： | 双极膜 聚丙烯酰胺 羧甲基纤维素 甘油醛 电催化氧化 纳米MnO2 |
| 收稿时间： | 2008-6-26 |
| 修稿时间： | 2008-10-16 |
Preparation of Glyceraldehyde by MnO2 Electro-catalytic Oxidation in mPAM/mCMC BPM Equipped Cell |
| |
| Cai Yanhong,Chen Riyao,Zheng Xi,Chen Xiao,Chen Zhen.Preparation of Glyceraldehyde by MnO2 Electro-catalytic Oxidation in mPAM/mCMC BPM Equipped Cell[J].Acta Chimica Sinica,2009,67(10):1127-1133. |
| |
| Authors: | Cai Yanhong Chen Riyao Zheng Xi Chen Xiao Chen Zhen |
| |
| Institution: | College of Chemistry and Materials Science;Fujian Normal University;Fuzhou 350007 |
| |
| Abstract: | Modified PAM/CMC bipolar membrane was prepared after carboxymethyl cellulose (CMC) and polyacrylamide (PAM) were cross-linked by Fe3+ and glutaraldehyde, respectively. Meanwhile the ion exchange capacity and the I-V curves of the bipolar membrane as well as its co-ion transport properties were investigated. SEM photographs show that the mPAM/mCMC bipolar membrane consists of the anion layer (mPAM) and the cation layer (mCMC) with a clear interface. FTIR was applied to analyse the function group in the bipol... |
| |
| Keywords: | bipolar membrane polyacrylamide carboxymethyl cellulose glyceraldehyde electro-catalytic oxidation nanometer MnO2 |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化学学报》浏览原始摘要信息 |
| 点击此处可从《化学学报》下载免费的PDF全文 |
|
