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Recent Advances in $MnO_{x}/CeO_{2}$-Based Ternary Composites for Selective Catalytic Reduction of $NO_{x}$ by $NH_{3}$: A Review
| Content Provider | MDPI |
|---|---|
| Author | Sun, Hao Park, Soo-Jin |
| Copyright Year | 2021 |
| Description | Recently, manganese oxides $(MnO_{x}$)/cerium(IV) oxide $(CeO_{2}$) composites have attracted widespread attention for the selective catalytic reduction (SCR) of nitrogen oxides $(NO_{x}$) with ammonia $(NH_{3}$), which exhibit outstanding catalytic performance owing to unique features, such as a large oxygen storage capacity, excellent low-temperature activity, and strong mechanical strength. The intimate contact between the components can effectively accelerate the charge transfer to enhance the electron–hole separation efficiency. Nevertheless, $MnO_{x}/CeO_{2}$ still reveals some deficiencies in the practical application process because of poor thermal stability, and a low reduction efficiency. Constructing $MnO_{x}/CeO_{2}$ with other semiconductors is the most effective strategy to further improve catalytic performance. In this article, we discuss progress in the field of $MnO_{x}/CeO_{2}$-based ternary composites with an emphasis on the SCR of $NO_{x}$ by $NH_{3}$. Recent progress in their fabrication and application, including suitable examples from the relevant literature, are analyzed and summarized. In addition, the interaction mechanisms between $MnO_{x}/CeO_{2}$ catalysts and $NO_{x}$ pollutants are comprehensively dissected. Finally, the review provides basic insights into prospects and challenges for the advancement of $MnO_{x}/CeO_{2}$-based ternary catalysts. |
| Starting Page | 1519 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal11121519 |
| Journal | Catalysts |
| Issue Number | 12 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-14 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Environmental Sciences Mnox/ceo2 Composite Catalysis Nox Reduction |
| Content Type | Text |
| Resource Type | Article |
