Unknown

Dataset Information

0

Effect of Catalyst Crystallinity on V-Based Selective Catalytic Reduction with Ammonia.

ABSTRACT: In this study, we synthesized V2O5-WO3/TiO2 catalysts with different crystallinities via one-sided and isotropic heating methods. We then investigated the effects of the catalysts' crystallinity on their acidity, surface species, and catalytic performance through various analysis techniques and a fixed-bed reactor experiment. The isotropic heating method produced crystalline V2O5 and WO3, increasing the availability of both Brønsted and Lewis acid sites, while the one-sided method produced amorphous V2O5 and WO3. The crystalline structure of the two species significantly enhanced NO2 formation, causing more rapid selective catalytic reduction (SCR) reactions and greater catalyst reducibility for NOX decomposition. This improved NOX removal efficiency and N2 selectivity for a wider temperature range of 200 °C-450 °C. Additionally, the synthesized, crystalline catalysts exhibited good resistance to SO2, which is common in industrial flue gases. Through the results reported herein, this study may contribute to future studies on SCR catalysts and other catalyst systems.

SUBMITTER: Lee MS 

PROVIDER: S-EPMC8230001 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Effect of Catalyst Crystallinity on V-Based Selective Catalytic Reduction with Ammonia.

Lee Min Seong MS   Kim Sun-I SI   Lee Myeung-Jin MJ   Ye Bora B   Kim Taehyo T   Kim Hong-Dae HD   Lee Jung Woo JW   Lee Duck Hyun DH  

Nanomaterials (Basel, Switzerland) 20210530 6

In this study, we synthesized V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub> catalysts with different crystallinities via one-sided and isotropic heating methods. We then investigated the effects of the catalysts' crystallinity on their acidity, surface species, and catalytic performance through various analysis techniques and a fixed-bed reactor experiment. The isotropic heating method produced crystalline V<sub>2</sub>O<sub>5</sub> and WO<sub>3</sub>, increasing the availability of  ...[more]

Similar Datasets

Unknown Hydrotalcite-Modified Clinoptilolite as the Catalyst for Selective Catalytic Reduction of NO with Ammonia (NH<sub>3</sub>-SCR).
| S-EPMC9696415 | biostudies-literature
Unknown Radio-Frequency-Based NH₃-Selective Catalytic Reduction Catalyst Control: Studies on Temperature Dependency and Humidity Influences.
| S-EPMC5539605 | biostudies-other
Unknown Regeneration of the Waste Selective Catalytic Reduction Denitrification Catalyst by Nitric Acid Washing.
| S-EPMC6788065 | biostudies-literature
Unknown New Findings in Hydrothermal Deactivation Research on the Vanadia-Selective Catalytic Reduction Catalyst.
| S-EPMC6648397 | biostudies-literature
Unknown Influence of Solvent on Selective Catalytic Reduction of Nitrogen Oxides with Ammonia over Cu-CHA Zeolite.
| S-EPMC9837844 | biostudies-literature
Unknown The utilization of red mud waste as industrial honeycomb catalyst for selective catalytic reduction of NO.
| S-EPMC6894605 | biostudies-literature
Unknown Electrochemical ammonia synthesis via nitrate reduction on Fe single atom catalyst.
| S-EPMC8128876 | biostudies-literature
Unknown Copper-based electro-catalytic nitrate reduction to ammonia from water: Mechanism, preparation, and research directions
| S-EPMC10830547 | biostudies-literature
Unknown Catalytic Dinitrogen Reduction to Ammonia at a Triamidoamine-Titanium Complex.
| S-EPMC6003280 | biostudies-literature
Unknown Catalytic Performance and Sulfur Dioxide Resistance of One-Pot Synthesized Fe-MCM-22 in Selective Catalytic Reduction of Nitrogen Oxides with Ammonia (NH<sub>3</sub>-SCR)-The Effect of Iron Content.
| S-EPMC9501588 | biostudies-literature