Citation: Yun CAI, Jing Dong LIN, Hong Bo CHEN, Hong Bin ZHANG, Guo Dong LIN, Dai Wei LIAO. Novel Ru-K/Carbon Nanotubes Catalyst for Ammonia Synthesis[J]. Chinese Chemical Letters, ;2000, 11(4): 373-374. shu

Novel Ru-K/Carbon Nanotubes Catalyst for Ammonia Synthesis

State Key Lab of Physical Chemistry on Solid Surfaces, Department of Chemistry Institute of Physical Chemistry, Xiamen University, Xiamen 361005

Received Date: 22 October 1999
Revised Date: 3 January 2000

Fund Project: This work was supported by the NSF of China (#29773037), the NSF of Fujian province (#E9910001) and the opening project grant from the State Key Lab of Phys. Chem. on Solid Surf.

A novel ammonia synthesis catalyst, potassium-promoted ruthenium supported on carbon nanotubes, was developed. It was found that the Ru-K/carbon nanotubes catalyst had higher activity for ammonia synthesis (20.85 ml NH₃/h/g-cat) than the Ru-K/fullerenes (13.3 ml NH₃/h/g-cat) at atmospheric pressure and 623 K. The catalyst had activity even at 473 K. and had the highest activity (23.46 ml NH₃/h/g-cat) at 643 K. It was suggested that the multi-walled structure favored the electron transfer the hydrogen-storage and the hydrogen-spill which were favorable to ammonia synthesis.
- Ammonia synthesis,
- ruthenium,
- carbon nanotubes
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