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- Duan Xuezhi, et al. Show all 6 Authors
- Industrial & Engineering Chemistry Research 2013 v.52 no.5 pp. 1854-1858
- ammonia; carbon; carbon monoxide; carbon nanofibers; catalysts; engineering; ethylene; gases; methane; nanoparticles; nickel; particle size; roots
- ... Ni-carbon nanofibers (Ni-CNFs) catalysts were synthesized in situ by the decomposition of carbon-containing gases (i.e., CH₄, CO, and C₂H₄) over Ni/Al₂O₃ catalyst and directly used to catalyze ammonia decomposition. The results showed that Ni nanoparticles were found to locate at the tips of CNFs when using CH₄ and CO as carbon sources, while they located at the roots of CNFs when using C₂H₄ as a ...
- Duan Xuezhi, et al. Show all 7 Authors
- Industrial & Engineering Chemistry Research 2013 v.52 no.48 pp. 17151-17155
- activation energy; ammonia; carbon; catalysts; desorption; engineering; iron; methodology; terracing
- ... Density functional theory calculations have been performed to investigate the recombinative desorption of N on terraced Fe(100) and Fe(110) as well as stepped Fe(111) and Fe(211) surfaces. The results showed that the stepped surfaces, especially the Fe(111) surface, are more active than the terraced surfaces, which could be related to the presence of so-called C₇ sites for the stepped surfaces. Ca ...