Efficient Ru/AC catalysts prepared by co-impregnation for ammonia synthesis - Details

author：

Ni, J. (Ni, J..) ^[1] | Zhu, Y.-L. (Zhu, Y.-L..) ^[2] | Chen, G. (Chen, G..) ^[3] | Lin, J.-X. (Lin, J.-X..) ^[4] | Wei, K.-M. (Wei, K.-M..) ^[5]

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Abstract：

Ru+Ba+K/AC　catalysts　with　high　turnover　frequency　were　synthesized　by　co-impregnation　with　Ba(NO3)2　and　the　complex　compound　of　glycerol　and　K2RuO4.　The　turnover　frequency　of　the　prepared　catalysts　is　between　0.87　and　1.30　s-1,　which　is　1.26　to　1.88　times　higher　than　that　of　the　Ru/AC　catalyst　with　RuCl3　as　a　precursor　for　ammonia　synthesis.　The　higher　turnover　frequency　of　the　Ru+Ba+K/AC　catalysts　than　the　Ru/AC　catalyst　could　be　attributed　to　the　higher　absorption　and　lower　activation　energy　of　nitrogen　on　the　Ru　surface　and　the　narrow-sized　distribution　of　Ru　nanocrystals　at　the　reaction　temperature.

Keyword：

Co-impregnation; Heterogeneous catalysis; Ruthenium; Supported catalysts; Turnover frequency

Community：

[ 1 ] [Ni, J.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China
[ 2 ] [Zhu, Y.-L.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China
[ 3 ] [Chen, G.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China
[ 4 ] [Lin, J.-X.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Wei, K.-M.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China

Reprint 's Address：

[Ni, J.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China

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Source ：

Journal of Molecular Catalysis

ISSN： 1001-3555

Year： 2013

Issue： 6

Volume： 27

Page： 530-538

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ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 3

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