| Title |
High-Dispersed V2O5-CuOX Nanoparticles on h-BN in NH3-SCR and NH3-SCO Performance |
| ID_Doc |
64947 |
| Authors |
Im, HG; Lee, MJ; Kim, WG; Kim, SJ; Jeong, B; Ye, B; Lee, H; Kim, HD |
| Title |
High-Dispersed V2O5-CuOX Nanoparticles on h-BN in NH3-SCR and NH3-SCO Performance |
| Year |
2022 |
| Published |
Nanomaterials, 12.0, 14 |
| DOI |
10.3390/nano12142329 |
| Abstract |
Typically, to meet emission regulations, the selective catalytic reduction of NOX with NH3 (NH3-SCR) technology cause NH3 emissions owing to high NH3/NOX ratios to meet emission regulations. In this study, V-Cu/BN-Ti was used to remove residual NOX and NH3. Catalysts were evaluated for selective catalytic oxidation of NH3 (NH3-SCO) in the NH3-SCR reaction at 200-300 degrees C. The addition of vanadium and copper increased the number of Bronsted and Lewis acid sites available for the reaction by increasing the ratio of V5+ and forming Cu+ species, respectively. Furthermore, h-BN was dispersed in the catalyst to improve the content of vanadium and copper species on the surface. NH3 and NOX conversion were 98% and 91% at 260 degrees C, respectively. Consequently, slipped NH3 (NH3-Slip) emitted only 2% of the injected ammonia. Under SO2 conditions, based on the NH3 oxidation reaction, catalytic deactivation was improved by addition of h-BN. This study suggests that h-BN is a potential catalyst that can help remove residual NOX and meet NH3 emission regulations when placed at the bottom of the SCR catalyst layer in coal-fired power plants. |
| Author Keywords |
V-Cu-based catalyst; NH3-Slip; hexagonal boron nitride; selective catalytic reduction; selective catalytic oxidation |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000833116800001 |
| WoS Category |
Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied |
| Research Area |
Chemistry; Science & Technology - Other Topics; Materials Science; Physics |
| PDF |
https://www.mdpi.com/2079-4991/12/14/2329/pdf?version=1657179110
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