To adapt hydrotalcite-based sorbents (also known as layered double hydroxides—LDHs) to high-temperature CO2 sorption compatible with tar steam reforming, the addition of CaO was investigated, maintaining LHDs porosity and accessibility but mostly assuring stability during sorption/desorption cycles. In co-precipitation synthesis, investigated parameters are (i) various interlayer anions differe...

There is some ambiguity regarding the fate of Mg during alkali activation Mg-rich precursors within broader field activated materials (AAMs). The present work addresses this issue by studying reaction products in AAMs synthesized from (Na-Mg) aluminosilicate glasses. Here, instead magnesium silicate hydrate (M-S-H) phase, exclusively forms an amorphous (AMS) phase. Compared to M-S-H, AMS a more...

Effective control and removal of nitrogen oxides (NO(x)) emission from vehicles exhausts under lean-burn condition is one of the most important targets in scientific research of environmental protection. A comprehensive introduction of NO(x) storage and reduction (NSR), the most promising lean-NO(x) control technology, is given including the sum-up of NSR materials, catalytic activity and relat...