نتایج جستجو برای: mg al hydrotalcite
تعداد نتایج: 747055 فیلتر نتایج به سال:
This paper identified carbonation products in the slag-rich cementitious systems upon three different exposure conditions, namely, long term field, indoor natural exposure, and accelerated testing. Overall, mineralogy of was found to be fundamentally similar under environments. In fully carbonated areas, no monosulfate calcium hydroxide observed, carbonate, hydrotalcite-like phase Ca–Al AFm pha...
An environment friendly synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran, 2aryl benzimidazole and 2-aryl-4, 5-dihydro-1H-imidazole derivatives using Mg-Al hydrotalcite as an efficient catalyst has been developed. The excellent efficiency of the catalyst can be attributed to its Lewis acidic sites which resulted in higher reaction yields for different sub...
Hydrogen plays an essential role during the in situ assembly of tailored catalytic materials, and serves as key ingredient in multifarious chemical reactions promoted by these catalysts. Despite intensive debate for several decades, the existence and nature of hydrogen-involved mechanisms - such as hydrogen-spillover, surface migration - have not been unambiguously proven and elucidated up to d...
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