The decomposition of NO on CNTs and 1 wt% Rh/CNTs
作者： JZ Luo , LZ Gao , YL Leung , CT Au , None
关键词: Decomposition 、 Chemistry 、 Catalysis 、 Chemical engineering 、 Carbon nanotube 、 Rhodium 、 X-ray photoelectron spectroscopy 、 Chemical decomposition 、 Nanotechnology 、 Transition metal 、 Heterogeneous catalysis
摘要: Carbon nanotubes (CNTs) and CNTs-supported rhodium were tested as catalysts for NO decomposition. For the fresh catalysts, 100% conversion was achieved at 600°C over CNTs; when 1 wt% Rh loaded on CNTs, 450°C. If pre-reduced in H2 or above 300°C, conversions observed 300°C. XPS investigation indicated that there still metallic (BE=307.2 eV) Rh/CNTs after heating air 500°C 2 h decomposition reaction. As a Rh/Al2O3 sample, (BE = 308.2 completely form of Rh2O3 similar treatments. These results suggest compared to γ-Al2O3, CNTs material is more capable keeping its state. The obtained H2-TPR studies support this conclusion. In addition, TEM revealed particles distributed rather evenly with particle diameter around 8 nm. We propose can be used facilitation
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