Annual Reports on NMR Spectroscopy, Vol. 88

0458602 - ÚMCH 2017 RIV US eng M - Monography Chapter
Brus, Jiří - Abbrent, Sabina - Kobera, Libor - Urbanová, Martina - Cuba, P.
Advances in 27Al MAS NMR studies of geopolymers.
Annual Reports on NMR Spectroscopy, Vol. 88. San Diego: Academic Press Inc Elsevier Science, 2016 - (Webb, G.), s. 79-147. ISBN 978-0-12-805078-1
R&D Projects: GA ČR(CZ) GA13-24155S; GA MŠMT(CZ) LO1507
Institutional support: RVO:61389013
Keywords : geopolymers * aluminosilicates * solid-state NMR
OECD category: Polymer science

Geopolymers have received considerable attention for their low cost, excellent mechanical and physical properties, low energy consumption, and reduced greenhouse emissions during manufacture. A typical application of geopolymers is their replacement of Portland cement as a building material. However, geopolymers have even greater application potential as regenerable catalysts, membranes, and storage materials for toxic chemicals, as well as photoactive composites. The structural characterization of these aluminosilicates, however, continues to be a challenge. Section 1 of the presented work provides a brief history, the typical applications, and conventional as well as advanced routes of synthesis of geopolymers, while discussing the issue of current problems with their structure elucidation. In Section 2, the basic principles of 27Al magic-angle spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy as a tool for the structural characterization of geopolymers are introduced, while Section 3 summarizes advanced multidimensional and multinuclear techniques of 27Al MAS NMR spectroscopy. and feature recent applications and show future methodological prospects for possible 27Al solid-state NMR approaches to geopolymers.
Permanent Link: http://hdl.handle.net/11104/0258869