Woo Jaegyu, Yoo Dalsan, Oh Seolyeong, Jeon Jong-Ki
Department of Chemical Engineering, Kongju National University, 1223-24 Cheonan-daero, Seobuk-gu, Cheonan-si, 31080, South Korea.
J Nanosci Nanotechnol. 2020 Nov 1;20(11):7065-7069. doi: 10.1166/jnn.2020.18841.
The objective of this study is to elucidate the influence of a loading procedure of iridium and copper oxides over cordierite honeycomb support on catalytic performance during the decomposition of a hydroxylammonium nitrate (HAN) solution. Iridium and copper composite oxides were successfully supported on the cordierite honeycomb at the same time by repeating the wash coating process more than 2 times. Through the wash coating process, Cu and Ir were supported up to 43.4% and 4.9%, respectively. The cordierite honeycomb without active metal plays little role as a catalyst to lower the decomposition temperature. It was found that IrCu/honeycomb-2 catalyst, which was prepared by repeating the wash coating procedure twice, is an optimal catalyst for the decomposition of HAN solution. The IrCu/honeycomb-2 catalyst had the effect of lowering the decomposition onset temperature by 27.1°C compared to thermal decomposition.
本研究的目的是阐明铱和氧化铜在堇青石蜂窝载体上的负载过程对硝酸羟铵（HAN）溶液分解过程中催化性能的影响。通过重复涂覆过程2次以上，铱和铜复合氧化物成功地同时负载在堇青石蜂窝上。通过涂覆过程，铜和铱的负载量分别达到43.4%和4.9%。没有活性金属的堇青石蜂窝作为降低分解温度的催化剂作用很小。结果发现，通过重复涂覆过程两次制备的IrCu/蜂窝-2催化剂是HAN溶液分解的最佳催化剂。与热分解相比，IrCu/蜂窝-2催化剂具有将分解起始温度降低27.1°C的效果。
