期刊
CATALYSIS COMMUNICATIONS
卷 41, 期 -, 页码 110-114出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2013.07.001
关键词
Lithium; Ru catalyst; Ammonia synthesis
资金
- National Natural Science Foundation of China [21203028]
The electronegativity of Li is much higher than that of Na or K, but the ammonia synthesis activities of Li-promoted Ru/AC catalysts were comparable to the values of Ru catalyst promoted with K, which were much higher than those over Ru catalyst with Na promoter. The presence of Li increased the catalytic activity by changing the chemisorption properties such as hydrogen adsorption and nitrogen adsorption for carbon-supported Ru catalysts, rather than affecting the sizes of Ru particles or the electron density of Ru metal. (C) 2013 Elsevier B.V. All rights reserved.
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