Processing, properties and applications of highly porous geopolymers: A review

By Chengying Bai, Paolo Colombo. Ceramics International, 2018

340 citations recorded by the source corpus.

Abstract Geopolymers, possessing a semi-crystalline three-dimensional inorganic network generated by the dissolution and reaction of a solid alumino-silicate source with an activating solution, have attracted increasing attention from both academia and industry because of their unique and favorable characteristics. This review deals with the synthesis, characterization and potential applications of porous geopolymers, realized through different processing routes. Firstly, the processing approaches are divided into five categories: (i) Direct foaming, (ii) Replica method, (iii) Sacrificial filler method, (iv) Additive manufacturing, and (v) Other methods. Their microstructure, porosity and properties are compared and discussed in relation also to the different processing routes. This review highlights the fact that porous geopolymers are promising low-cost candidates for technologically significant applications such as catalyst supports or membranes, filtration of liquid or gases, adsorption and insulation. This review aims at summarizing the main published results and fostering further investigations into developing innovative ways to generate components with improved properties.

Subfields: Ceramics and Composites, Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/5795615f84e8a5d2131245b3f6a2a10d2b3ba7b6

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Civil and Structural Engineering

  1. J. Yliniemi
  2. T. Luukkonen
  3. Janne Pesonen
  4. H. Runtti
  5. U. Lassi
  6. A. Heponiemi

In Materials Chemistry

  1. J. Yliniemi
  2. T. Luukkonen
  3. Janne Pesonen
  4. H. Runtti
  5. U. Lassi
  6. A. Heponiemi

Citations in the corpus