Performance of Pt and Ir Supported on Mesoporous Materials for Decomposition of Hydroxylammonium Nitrate Solution

Dalsan Yoo; Jaegyu Woo; Seolyeong Oh; Jong-Ki Jeon

doi:10.1166/jnn.2020.17598

Performance of Pt and Ir Supported on Mesoporous Materials for Decomposition of Hydroxylammonium Nitrate Solution

J Nanosci Nanotechnol. 2020 Jul 1;20(7):4461-4465. doi: 10.1166/jnn.2020.17598.

Authors

Dalsan Yoo¹, Jaegyu Woo¹, Seolyeong Oh¹, Jong-Ki Jeon¹

Affiliation

¹ Department of Chemical Engineering, Kongju National University, 1223-24 Cheonan-daero, Seobuk-gu, Cheonan, 31080, Korea.

PMID: 31968497
DOI: 10.1166/jnn.2020.17598

Abstract

The catalytic decomposition of hydroxylammonium nitrate (HAN) was investigated using a series of platinum and iridium supported on mesoporous materials. In this study, MMZ_Y, KIT-6, and SBA-15 were used as supports. The effects of the active metal and the pore structure of the catalysts on decomposition of HAN solution were studied. The activity of the platinum catalysts supported on mesoporous material is much superior to that of the iridium catalysts on the same support. The Pt(10)/SBA-15 catalyst showed excellent decomposition activity and was the best among the catalysts tested here, which seemed to be because of the pore structure of Pt(10)/SBA-15. Because the pore size of Pt(10)/SBA-15 is larger than that of Pt(10)/MMZ_Y and Pt(10)/KIT-6, it is more advantageous for diffusion of reactant and product gas. The activity of the catalyst increased as the amount of Pt loaded on the SBA-15 support increased.