Basic Research to Develop PGM-free DeNOx Catalyst for LNT 


Vol. 21,  No. 2, pp. 117-123, Jun.  2015
10.7464/ksct.2015.21.2.117


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  Abstract

This inquiry was conducted to develop DeNOx catalyst for LNT. In order to develop appropriate catalysts, four catalysts, which do not use PGM (Platinum Group Metal), were carefully selected : Al/Co/Mn, Al/Co/Ni/Mn, Al/Co/Mn/Ca, Al/Co/Ni mixed metal oxides during preliminary experiments. Also, XRD, EDS, SEM, BET and TPD tests were carried as well to evaluate both physicochemical properties of such four catalysts. As a result of the experiment, four catalysts were composed of spinel-shaped crystals and had more than enough pore volume and size to have oxidation-reduction reaction of NOx gases. Additionally, through TPD test, all four types of catalysts were proved to possibly have an oxidation-reduction acid site and NO oxidation activities similar to commercial catalysts. Based on the results above, if we have further change in the composition components and active ingredients according to the catalysts that were chosen in this investigation, then we are more welcomed to expect to have an enhanced DeNox catalyst for LNT.

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  Cite this article

[IEEE Style]

J. KN, H. KS, H. JS, Y. YW, H. TS, "Basic Research to Develop PGM-free DeNOx Catalyst for LNT," Clean Technology, vol. 21, no. 2, pp. 117-123, 2015. DOI: 10.7464/ksct.2015.21.2.117.

[ACM Style]

Jang KN, Han KS, Hong JS, You YW, and Hwang TS. 2015. Basic Research to Develop PGM-free DeNOx Catalyst for LNT. Clean Technology, 21, 2, (2015), 117-123. DOI: 10.7464/ksct.2015.21.2.117.

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