Effect of Co-catalyst CeO2 on NOx Reduction in PtNi/W-TiO2 Catalysts for Low-temperature H2-SCR 


Vol. 29,  No. 4, pp. 313-320, Dec.  2023
10.7464/ksct.2023.29.4.313


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  Abstract

In order to increase the usability of H2-SCR, the NOx removal characteristics with catalyst powder of PtNi/CeO2- W-TiO2 using Ce as a co-catalyst was synthesized and coated on a porous metal structure (PMS) were evaluated. Catalyst powder of PtNi/CeO2-W-TiO2(PtNi nanoparticles onto W-TiO2, with the incorporation of ceria (CeO2) as a co-catalysts) was synthesized and coated onto a porous metal structure (PMS) to produce a Selective Catalytic Reduction (SCR) catalyst. H2-SCR with CeO2 as a co-catalyst exhibited higher NOx removal efficiency compared to H2-SCR without CeO2. Particularly, at a 10wt% CeO2 loading ratio, the NOx removal efficiency was highest at 90℃. As the amount of catalyst coating on PMS increased, the NOx removal efficiency was improved below 90℃, but it was decreased above 120℃. When the space velocity was changed from 4,000 h-1 to 20,000 h-1, the NOx removal efficiency improved at temperatures above 120℃. It was expected that the use of the catalyst could be reduced by applying the PMS with excellent specific surface area as a support

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  Cite this article

[IEEE Style]

J. Kim and Y. Kim, "Effect of Co-catalyst CeO2 on NOx Reduction in PtNi/W-TiO2 Catalysts for Low-temperature H2-SCR," Clean Technology, vol. 29, no. 4, pp. 313-320, 2023. DOI: 10.7464/ksct.2023.29.4.313.

[ACM Style]

Jungsoo Kim and Younghee Kim. 2023. Effect of Co-catalyst CeO2 on NOx Reduction in PtNi/W-TiO2 Catalysts for Low-temperature H2-SCR. Clean Technology, 29, 4, (2023), 313-320. DOI: 10.7464/ksct.2023.29.4.313.

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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