Journal
CHINESE JOURNAL OF CHEMISTRY
Volume 27, Issue 4, Pages 677-680Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.200990111
Keywords
Nafion membrane; Sm1.5Sr0.5MO4 (SSM); wet hydrogen; ammonia synthesis at atmospheric pressure and low temperature
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Funding
- National Natural Science Foundation of Chena [20863007]
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Sm1.5Sr0.5MO4 (M=Ni, Co, Fe) (SSM) catalysts were prepared by a sol-gel method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was synthesized from wet hydrogen and dry nitrogen at atmospheric pressure and low temperature (25-100 degrees C) with applied voltage, using SSM as a cathode, Ni-Ce0.8Sm0.2O2-delta(Ni-SDC) as an anode, and silver-platinum film as a current collector, Nafion proton exchange membrane as a proton permeating membrane. Several important factors on ammonia synthesis were investigated and the optimal synthetic temperature was found, at which the highest rate of evolution of ammonia was up to 1.05 x 10(-8) mol.cm(-2).s(-1).
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