...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catalysis science & technology >Influence of intimacy for metal-mesoporous solid acids catalysts for n-alkanes hydro-conversion
【24h】

Influence of intimacy for metal-mesoporous solid acids catalysts for n-alkanes hydro-conversion

机译：影响metal-mesoporous固体的亲密关系酸催化剂对正烷烃hydro-conversion

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Pt on both ordered mesoporous Al-SBA-15 and commercial amorphous mesoporous silica-alumina bi-functional catalysts were prepared and studied for n-heptane hydro-isomerization and n-hexadecane hydro-cracking. We investigated the influence of the location of the Pt nanoparticles and their proximity to the acid sites; by depositing Pt in a controlled manner either in the mesopores of the solid acid or on a gamma-Al2O3 binder, surrounding the solid acid particles. We demonstrate that in the case of both ordered and amorphous mesoporous acidic support, a distance between the metal and acid sites of a hundreds of nanometers gives similar results compared to the closest intimacy (below 10 nm) between these functions. Due to the medium strength Bronsted acid sites of the Al-SBA-15, Pt-Al-SBA-15 exhibits higher activity than the corresponding Pt on commercial amorphous silica-alumina. These results suggest that, in the case of mesoporous solid acids, a fine control at the nanoscale of the proximity between the active sites is less important than the number and nature of the acid sites.
机译：有序介孔Al-SBA-15和Pt商业非晶态介孔硅铝bi-functional催化剂制备和研究对正庚烷hydro-isomerization和正十六烷hydro-cracking。Pt纳米粒子的位置的影响和他们接近酸网站;沉淀为泰党在一个受控的方式固体酸的中孔或gamma-Al2O3粘合剂,周围固体酸粒子。命令和非晶态介孔的酸性支持,金属和酸之间的距离网站的数百纳米给相似结果相比,最近的亲密(如下这些函数之间的10海里)。力量Al-SBA-15布仑斯惕酸的场所,Pt-Al-SBA-15展览活动比更高相应的Pt商业非晶态矽。介孔固体酸的情况下,罚款之间的距离控制在纳米尺度上活动地点是那么重要酸的数量和性质的网站。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号