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Baik, Jeong Min
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Partially reduced graphene oxide as a support of Mn-Ce/TiO2 catalyst for selective catalytic reduction of NOx with NH3

Author(s)
Ye, BoraLee, MinwooJeong, BoraKim, JinwooLee, Duck HyunBaik, Jeong MinKim, Hong-Dae
Issued Date
2019-05
DOI
10.1016/j.cattod.2018.12.007
URI
https://scholarworks.unist.ac.kr/handle/201301/25681
Fulltext
https://www.sciencedirect.com/science/article/pii/S092058611831366X?via%3Dihub
Citation
CATALYSIS TODAY, v.328, pp.300 - 306
Abstract
The MnCe oxides based catalysts with partially reduced graphene oxide support were synthesized, and the prepared catalyst exhibited high NOx removal characteristics at low temperatures. Generally, the graphene oxide has many functional groups on its surface which enables the enhanced dispersion behavior, whereas, the reduced graphene oxide can provide high specific surface area. In order to exploit the advantages graphene oxide and reduced graphene oxide, partially reduced graphene oxide support was synthesized by impregnating the active materials on graphene oxide and the graphene oxide support was further reduced with thermal reduction process. The prepared catalysts exhibited high NOx removal characteristics of 99% at the temperature range 150-300 °C, and further elucidated with TEM, BET, NH3-TPD, H2-TPR, and XPS analysis. By using the partially reduced graphene oxide support, we can synthesize a catalyst exhibiting high NOx removal efficiency with low content of active materials.
Publisher
ELSEVIER SCIENCE BV
ISSN
0920-5861
Keyword (Author)
Graphene oxide supportLow-temperature windowMnCe-based catalystNano-dispersionNH3-SCR reactionThermal reduction
Keyword
MNOX-CEO2 CATALYSTSCARBON NANOTUBESPERFORMANCESCRADSORPTIONNANOPARTICLESDEACTIVATIONCOMBUSTIONOXIDATIONNH3-SCR

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