| 陈铭夏.K/LiCoO2的制备及其同时催化去除碳烟和NOx的性能研究[J].分子催化,2013,(1):49-54 |
| K/LiCoO2的制备及其同时催化去除碳烟和NOx的性能研究 |
| Simultaneously Catalytic Removal of Diesel Particulates and NOx on K/LiCoO2 Catalysts |
| 投稿时间：2013-01-03 修订日期：2013-01-30 |
| DOI： |
| 中文关键词: 钴酸锂 碳烟 NOx 催化去除 |
| 英文关键词:LiCoO2 PM NOx catalytic removal |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
|
| 摘要点击次数: 1911 |
| 全文下载次数: 3231 |
| 中文摘要: |
| 采用溶液燃烧法和浸渍法制备了铜铁矿结构的钴酸锂（LiCoO2）及其负载K的系列催化剂样品，并通过XRD、NOx-TPD、H2-TPR、程序升温反应等对其进行了结构表征与性能评价。结果表明LiCoO2是一种能有效同时去除碳烟（PM）和NOx的催化剂；K负载可提高其催化活性，其中10%K/ LiCoO2具有最低的PM起燃温度（246℃）和最大NOx→N2转化率（35.94%）；催化剂表面生成的O2-/O-活性氧物种以及较强的NOx吸附存储能力可能是K/ LiCoO2 催化活性提高的原因。 |
| 英文摘要: |
| LiCoO2 and potassium loading LiCoO2 catalyst were prepared by solution combustion method and subsequent dipping method. The prepared catalysts were characterized by XRD, NOx-TPD, H2-TPR and the catalytic activity of the catalysts were evaluated by temperature programmed reaction. It is showed that LiCoO2 is an effective catalyst for simultaneous removal of PM and NOx. Loading potassium could improve the catalytic activity, 10%K/LiCoO2 had minimum light-off temperature (246℃) and maximum conversion of NOx to N2 (35.94%). A large number of O2-/O- active oxygen species on catalyst surface and the improved NOx adsorption storage capacity of the catalyst might be the reason for the higher catalytic activity of K/LiCoO2 |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
