Characterization and Catalytic Performance of Niobic Acid Dispersed over Titanium Silicalite

<table>FTIR spectra of the NBA, NBO, TS-1, and <i>X</i>Nb/TS-1 samples in the hydroxyl vibration region, after evacuation under vacuum at 200<sup>°</sup>C.</table>

Advances in Materials Science and Engineering

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Figure 5

Figure 5: Characterization and Catalytic Performance of Niobic Acid Dispersed over Titanium Silicalite 