Usually this is done by content of alkali metal oxides.① Alkali glass fiber, content of alkali metal oxide is higher than 12%; ② medium-alkali glass fibers, alkali metal oxide is in a range of 6% ~12%; ③ low-alkali glass fiber, alkali metal oxide is in a range of 2% to 6%;...
The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. ...
Higher extracellular solubilization of copper oxide could explain its increased toxicity. Rather, copper's intracellular bioavailability may be critical. Nanoparticles and microparticles are most likely taken up by endocytosis and deposited in lysosomes. They are dissolved here due to the acidic pH, ...
The invention relates to method for the preparation of metal oxide supports loaded with biomolecules, comprising the steps of: (a) activating the surface of the support by means of a silanating agent comprising an amine group; (b) loading the support by attaching biomolecules to the activated ...
Iridium oxide (IrO2) is currently the only material that can remain stable under the harsh acidic OER condition, while its progress has been largely impeded by its unsatisfied activities and ultralow-earth abundance14,15,16. Several strategies have been reported to develop complex iridium-based ...
adsorption species. Nevertheless, the concept of the self-assembly of metal oxides having acid–base sites and an organic modifier having two functional groups with different basicities or acidities, provides an effective strategy for preparing metal oxide materials that have enhanced catalytic properties...
Temperature-programmed desorption (TPD) spectra of ammonia revealed that the microporous samples are weakly acidic, but with different strengths, depending on the doped metal species. 展开 关键词: magnesium oxide H-1 MAS NMR X-ray diffraction CO2 chemisorption ...
Since proton accommodation on the surface is most likely due to the high Brønsted basicity of oxygen, our model could be a more general picture for the surface chemistry of metal oxide nanocrystals with important consequences on the chemistry of ligand exchange reactions. 展开 ...
ceramic or ceramic-like planarizing coating compositions such as SiO2/ZrO2, SiO2/TiO2, SiO2/TiO2/ZrO2, and SiO2/Al2O3have been prepared. These metal oxide ceramic or ceramic-like coatings minimize mechanical stresses due to the irregular topography of an integrated circuit or electronic device and...
Although, the probability of choosing a conceivable HBA and HBD cause a definite control over the stable chemical properties which lead to the solubility of particular metal oxide. In reality, this outcome is noteworthy to have varied DES obtained by tuning the HBD which can tempt a large ...