Sentence examples for intermediate na from inspiring English sources

Cu/beta catalyst prepared from ammonic BEA zeolite with intermediate Na ion exchange followed by copper ion exchange results in the most active catalyst in the NH3-SCR reaction, which is related to the coexistence of Cu+ and Cu2+ ions and to a more accessible location of such ions in the zeolite matrix.

Moreover, Zintl phase also forms layered compounds and a layered intermediate Na x Si (x < 1) could induce the formation of layered amorphous silicon.

S, susceptible; I, intermediate; NA, not available.

*S, sensitive; R, resistant, I, intermediate; NA, not applicable.

We first showed that it is possible to reliably identify the initial intermediate 2-NA from a groundwater matrix at exceedingly low concentrations using a modification of U.S. EPA method 3510C (U.S. EPA 2000).

This shape disappeared at intermediate ratios (2 NA and 1 NA) where only disordered loose particles and films were seen (Figure 4b,c), whereas at lower contents (0.5 and 0.2), the spheres were observed again but with corrugated surfaces along with other random particulates as shown in Figure 4d,e.

The solid reaction of Na intermediate and nanocrystalline ZrO2 in the calcination was identified as the key step for the Na2ZrO3 formation, where the formation of molten phase Na intermediate was found to be crucial to facilitate the solid reaction.

An A2/3 intermediate (A = Na, Li) has also been observed during charging of the polyanionic materials NaFePO4 and LiVPO4F.

All these observations suggest Na2V2(PO4)3 could serve as an intermediate in the two-step Na-ion insertion process but not the one-step Na-ion extraction process.

At intermediate molar ratios (1 NA and 2 NA), loose fine particulate and film products were formed with a disordered structure.

These issues are due to the fragility of MCCl3 (typically M=Li or Na) intermediates.