Abstract
Nitric acid treatment of CNTs-cordierite monolith changes the amount of Mg, Si, Al and oxygen-containing functional groups, thereby influencing on the surface area and pore size distribution of composite materials. Appropriate treatment of CNTs-cordierite with nitric acid increases the surface area and the amount of micropores slightly, but improves the activities for ammonia synthesis noticeable, which might be a consequent of the variation of the amount of Mg, Si, Al and oxygen-containing functional groups. The ammonia synthesis activity of Ba–Ru/CNTs-cordierite increase by more than 30% if the support material is treated at 30 °C for 4 h with nitric acid.
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The authors are grateful for the financial support form National Natural Science Foundation of China (20576021), Science & Technology Priority Project of Fujian Province (2005H201-2) and National Key Technology R&D Program of China (2007BAE08B00).
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Yu, X., Lin, B., Gong, B. et al. Effect of Nitric Acid Treatment on Carbon Nanotubes (CNTs)-Cordierite Monoliths Supported Ruthenium Catalysts for Ammonia Synthesis. Catal Lett 124, 168–173 (2008). https://doi.org/10.1007/s10562-008-9534-1
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DOI: https://doi.org/10.1007/s10562-008-9534-1