Experimental Study on the Deactivating Effect of KNO3, KCl, and K2SO4 on Nanosized Ceria/Titania SCR Catalyst

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td align="left">Sample</td><td align="center">Ce</td><td align="center">Ti</td><td align="center">O</td><td align="center">K</td><td align="center">Cl</td><td align="center">S</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td align="left">Ce/TiO2</td><td align="center">1.86</td><td align="center">31.60</td><td align="center">66.54</td><td align="center">—</td><td align="center">—</td><td align="center">—</td></tr><tr><td align="left">Ce/TiO2-KNO3-0.25</td><td align="center">2.01</td><td align="center">32.22</td><td align="center">65.00</td><td align="center">0.76</td><td align="center">—</td><td align="center">—</td></tr><tr><td align="left">Ce/TiO2-KCl-0.25</td><td align="center">2.13</td><td align="center">31.49</td><td align="center">64.92</td><td align="center">0.99</td><td align="center">0.47</td><td align="center">—</td></tr><tr><td align="left">Ce/TiO2-K2SO4-0.25</td><td align="center">2.29</td><td align="center">30.41</td><td align="center">64.43</td><td align="center">1.76</td><td align="center">—</td><td align="center">1.11</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Surface atomic concentrations of various elements acquired with XPS.

Journal of Nanomaterials

tab2

Table 2

Table 2: Experimental Study on the Deactivating Effect of KNO3, KCl, and K2SO4 on Nanosized Ceria/Titania SCR Catalyst