催化作用
机械合成
共沉淀
化学工程
热稳定性
表征(材料科学)
材料科学
水解
化学
纳米技术
无机化学
有机化学
冶金
工程类
球磨机
作者
Yousra El Jemli,Karima Abdelouahdi,Doan Pham Minh,Abdellatif Barakat,Abderrahim Solhy
标识
DOI:10.1002/9783527830190.ch2
摘要
A solid catalyst should exhibit high activity, high selectivity, and good stability. Hydroxyapatite (HA), which is a calcium phosphate with a Ca/P molar ratio of 1.67, and the derived materials constitute a new promising family of catalytic materials. In fact, HA can be used as a catalyst or catalyst support in several applications, which can be attributed to its specific structure and properties such as the modular molar ratio of Ca/P, the high thermal stability, and the exceptional capacity of ion exchange. The chemical composition, the morphology, and the textural and physicochemical properties of HA and HA-based catalysts strongly depend on the preparation methods that include coprecipitation, sol–gel, emulsion, hydrolysis, mechanosynthesis, etc. This chapter aims to provide a comprehensive summary on the synthesis methods of HA and HA-based catalysts for various chemical applications. The basic characteristics of these materials are also presented. The discussion begins with an introduction, followed by an overview of HA synthesis methods and its properties. Finally, prospects on challenges and opportunities for the development of HA-based catalysts are highlighted.
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