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As shown in Fig. 4, the second peak decreased with increased Mg loading, and this peak nearly disappeared at a Mg loading of 2%, indicating that at this level of Mg loading the Mo2C was well dispersed onto the HY support, consistent with the XRD results (Fig. 3). A similar analysis of the second weight gain peak of the DTGA spectra shows that the Mo2C dispersion of the K-doped catalyst was higher than that of the 0.5% Mg-doped catalyst, but not as high as that obtained for the 1% Mg-doped catalyst.
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