催化学报 ›› 2013, Vol. 34 ›› Issue (1): 225-234.DOI: 10.3724/SP.J.1088.2013.20870

• 综述 • 上一篇    下一篇

基于层状前驱体制备活性位高分散催化材料

安哲, 何静*, 段雪   

  1. 北京化工大学化工资源有效利用国家重点实验室, 北京 100029
  • 收稿日期:2012-08-31 修回日期:2012-10-19 出版日期:2013-01-23 发布日期:2013-01-23

Catalysts with catalytic sites highly dispersed from layered double hydroxide as precursors

AN Zhe, HE Jing*, DUAN Xue   

  1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2012-08-31 Revised:2012-10-19 Online:2013-01-23 Published:2013-01-23

摘要: 综述了近年来以层状双金属氢氧化物 (LDHs) 为前躯体制备高分散催化剂的研究进展, 基于 LDHs 层板金属阳离子以原子水平高度分散及层间阴离子以一定方式有序排布的结构特点, 以 LDHs 材料作为单一前驱体, 经层板剥离、晶格限域、插层组装及阵列化等途径制备催化活性位高度分散的多相催化材料具有显著的优势.

关键词: 层状结构, 插层结构, 前驱体, 高分散

Abstract: Layered double hydroxides (LDHs) refer to a class of clays with diverse brucite-like layers and intercalated anions, which have attracted increasing interest in the field of catalysis. Benefiting from the atomic-scale distribution of metal cations in the brucite-like layers and the ordered arrangement of diversified interlayer anions, the LDHs display great potential as the precursors to prepare catalysts in that the catalytic sites could be highly dispersed. The approaches to prepare catalysts from LDHs as precursors include, but not limited to, exfoliation of the brucite-like layers, confinement by the brucite-like layers, intercalation, and/or nanosheet arrays. The latest development of the catalyst preparation using LDHs as precursors was mainly summarized.

Key words: layered structure, intercalated structure, precursor, high dispersion