Infrared Studies of Adsorbed Dinitrogen on Supported Ruthenium Catalysts for Ammonia Synthesis: Effects of the Alumina and Magnesia Supports and the Cesium Compound Promoter

1994 ◽  
Vol 98 (44) ◽  
pp. 11293-11300 ◽  
Author(s):  
Jun Kubota ◽  
Ken-ichi Aika
Keyword(s):  
Ammonia Synthesis ◽  
Ruthenium Catalysts ◽  
Infrared Studies ◽  
Cesium Compound

Microwave-assisted synthesis of MgO–CNTs supported ruthenium catalysts for ammonia synthesis

2007 ◽  
Vol 8 (12) ◽  
pp. 1881-1885 ◽  
Author(s):  
Qing-Chi Xu ◽  
Jing-Dong Lin ◽  
Jun Li ◽  
Xian-Zhu Fu ◽  
Ying Liang ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Ruthenium Catalysts ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

Methanation of Carbon Supports of Ruthenium Catalysts for Ammonia Synthesis. Review

2016 ◽  
Vol 16 (4) ◽  
pp. 20-27 ◽  
Author(s):  
P. G. Tsyrulnikov ◽  
K. N. Iost ◽  
N. B. Shitova ◽  
V. L. Temerev
Keyword(s):  
Ammonia Synthesis ◽  
Ruthenium Catalysts ◽  
Carbon Supports

Preparation of efficient ruthenium catalysts for ammonia synthesis via high surface area graphite dispersion

2014 ◽  
Vol 113 (2) ◽  
pp. 361-374 ◽  
Author(s):  
Wenfeng Han ◽  
Haiyu Yan ◽  
Haodong Tang ◽  
Ying Li ◽  
Huazhang Liu
Keyword(s):  
Surface Area ◽  
Ammonia Synthesis ◽  
High Surface ◽  
High Surface Area ◽  
Ruthenium Catalysts

Comparative Study of Rubidium and Cesium as Promoters in Carbon-supported Ruthenium Catalysts for Ammonia Synthesis

2007 ◽  
Vol 120 (3-4) ◽  
pp. 204-209 ◽  
Author(s):  
Yu. V. Larichev ◽  
D. A. Shlyapin ◽  
P. G. Tsyrul’nikov ◽  
V. I. Bukhtiyarov
Keyword(s):  
Comparative Study ◽  
Ammonia Synthesis ◽  
Ruthenium Catalysts

scholarly journals Low Apparent Activation Energy of Ammonia Synthesis over Ru Catalyst Supported by Hydrogen Storage Material

2021 ◽  
Author(s):  
kazuma torii ◽  
Takaya Ogawa ◽  
Ryusei Morimoto ◽  
Tetsu Seno ◽  
Hideyuki Okumura ◽  
...  
Keyword(s):  
Activation Energy ◽  
Hydrogen Storage ◽  
Apparent Activation Energy ◽  
High Activity ◽  
Ammonia Synthesis ◽  
Catalytic Performance ◽  
Ruthenium Catalysts ◽  
High Electron ◽  
Hydrogen Storage Material ◽  
Storage Material

<p>Ruthenium is an excellent catalyst for ammonia synthesis and recently shows quite high activity when supported on materials with high electron-donating and hydrogen-absorbing properties. The high activity is generally considered to originate from the two effects: the electron-donating property of the support, which reduces its apparent activation energy (<sup>app</sup>E<sub>a</sub>) to half of pure Ru’s <sup>app</sup>E<sub>a</sub>, and the hydrogen-absorbing property, which increases the active site by suppressing hydrogen poisoning, a drawback of ruthenium catalysts. Here, we investigated the catalytic performance of ruthenium loaded on TiMn<sub>2</sub>, a hydrogen storage material without electron-donating property to ruthenium. Ruthenium on TiMn<sub>2</sub> showed the <sup>app</sup>E<sub>a</sub> reduced by half despite the lack of electron-donating property. It is plausible that the decreased <sup>app</sup>E<sub>a</sub> is due to the elimination of hydrogen over Ru by TiMn<sub>2</sub>. The hydrogen storage capacity is also an essential factor in discussing the <sup>app</sup>E<sub>a</sub>.</p>

scholarly journals Effect of Alumina Support and Barium Oxide on the Structure and Catalytic Activity of Ruthenium Catalysts for Ammonia Synthesis

2010 ◽  
Vol 26 (12) ◽  
pp. 3263-3272 ◽  
Author(s):  
YANG Xiao-Long ◽  
◽  
XIA Chun-Gu ◽  
TANG Li-Ping ◽  
XIONG Xu-Mao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ammonia Synthesis ◽  
Barium Oxide ◽  
Ruthenium Catalysts ◽  
Alumina Support
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