化工进展2018，Vol.37Issue(1)：128-139,12.DOI:10.16085/j.issn.1000-6613.2017-0779
层状双金属氢氧化物形成机理的研究现状
Research progress of layered double hydroxide formation mechanisms
张胜寒 1陈玉强 1姜亚青 1孙晨皓1
作者信息
- 1. 华北电力大学(保定)环境科学与工程系,河北 保定071000
- 折叠
摘要
Abstract
Layered double hydroxide(LDH)are a kind of promising special multifunctional layered materials,which have the excellent regulatable capability,perfect environmental compatibility and remarkable efficiency,so they have been studied extensively in environmental protection,catalysis, energy storage,transducer and other fields. Most researches are conducted on the improvement of tailored synthesis methods and application of LDH,whereas the research on the transformation of LDH (composition,structure and morphology)is rare,especially on the general formation mechanism of LDH. The controllable preparation and in-depth applications of LDH with unique morphology and specific composition are highly demanded. An overview and comparison are presented on the interpretations of primary LDH laminate formation mechanisms which are the existence of divalent metal hydroxide,the existence of trivalent metal hydroxides and the direct topological phase transition mechanism. The solid-liquid and liquid-liquid reactions are thought to play a dominant role in the initial nucleation stage,while the multiple mechanisms,the various influences and the mastery reaction are easily affected by the external conditions. To obtain a more universal mechanistic insight on LDH formation and provide a theoretical basis for the prospective development of LDH,a general formation mechanism need to be clarified,which requires explanations from the conclusive building rules and difference of LDH laminate as well as the internal mechanism and scientific nature of the formation process in macro and micro perspectives.关键词
层状双金属氢氧化物/形成机理/氢氧化物/拓扑相变/化学反应Key words
layered double hydroxide(LDH)/formation mechanism/hydroxide/topological mechanism/chemical reaction分类
化学化工引用本文复制引用
张胜寒,陈玉强,姜亚青,孙晨皓..层状双金属氢氧化物形成机理的研究现状[J].化工进展,2018,37(1):128-139,12.
