Skip to main content


Weitere Artikel dieser Ausgabe durch Wischen aufrufen

21.08.2018 | Original Paper: Sol-gel and hybrid materials for energy, environment and building applications | Ausgabe 1/2019 Open Access

Journal of Sol-Gel Science and Technology 1/2019

From sol–gel prepared porous silica to monolithic porous Mg2Si/MgO composite materials

Journal of Sol-Gel Science and Technology > Ausgabe 1/2019
N. Hayati-Roodbari, R. J. F. Berger, J. Bernardi, S. Kinge, N. Hüsing, M. S. Elsaesser
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10971-018-4778-8) contains supplementary material, which is available to authorized users.


Mg2Si is apart from its conductivity properties expected to be a promising candidate for thermoelectric applications due to its low toxicity, low costs, and the high abundance of its precursor chemicals. Through the addition of a homogeneous distribution of nanoparticles (e.g. MgO) and by reducing the size of Mg2Si to the nanometer regime, it is possible to decrease the thermal conductivity by increasing phonon-interface scattering and, as a result, improve the thermoelectric properties. However, classical approaches do not allow for the synthesis of nanocomposites from Mg2Si and MgO. In this work, a straightforward route is presented towards homogeneously mixed Mg2Si/MgO via a two-step magnesiothermic reduction process starting from sol–gel derived hierarchically organized porous silica. Monolithic materials composed of Mg2Si and MgO in variable molar ratios are built up from a macroporous network of Mg2Si with homogeneously distributed MgO particles exhibiting a crystallite size in the range of 24–37 nm.

Unsere Produktempfehlungen

Premium-Abo der Gesellschaft für Informatik

Sie erhalten uneingeschränkten Vollzugriff auf alle acht Fachgebiete von Springer Professional und damit auf über 45.000 Fachbücher und ca. 300 Fachzeitschriften.

Über diesen Artikel

Weitere Artikel der Ausgabe 1/2019

Journal of Sol-Gel Science and Technology 1/2019 Zur Ausgabe

Brief Communication: Functional coatings, thin films, and membranes (including deposition techniques)

Bacterial cellulose–SiO2@TiO2 organic–inorganic hybrid membranes with self-cleaning properties

Original Paper: Functional coatings, thin films and membranes (including deposition techniques)

Study of annealing effect upon the structural and solar- selective properties of C/Ni/NiO composite coatings prepared by sol–gel method

Original Paper: Sol-gel and hybrid materials for energy, environment and building applications

Effect of organic precursor in hybrid sol–gel coatings for corrosion protection and the application on hot dip galvanised steel

Original Paper: Nano- and macroporous materials (aerogels, xerogels, cryogels, etc.)

Influence of hierarchical porous structures on the mechanical properties of cellulose aerogels



Premium Partner


    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen.