Journal
NEW PARADIGM OF PARTICLE SCIENCE AND TECHNOLOGY, PROCEEDINGS OF THE 7TH WORLD CONGRESS ON PARTICLE TECHNOLOGY
Volume 102, Issue -, Pages 450-457Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeng.2015.01.186
Keywords
corn stalk; one-step method; Co catalysts; activation energy; hydrogen
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One-step method for catalyst preparation was adopted in this investigation. After crushing and screening of corn stalk, the cobalt nitrate solution was impregnated into corn stalk to obtain a Co-biomass precursor, the catalyst for hydrogen generation was made by carbonization and activation in a fluidized bed. The effects of preparation parameters, the reaction temperature and the number of cycles on hydrogen generating performance of these Co catalysts were investigated. It demonstrated that the optimal carbonization temperature and time were 400 degrees C and 1 h, and the optimal activation temperature and time were 800 degrees C and 2 h. Under these conditions, the maximum rate of hydrogen generation was 2952 mL.min(-1).g(-1). Activation energy of hydrogen generation using such catalysts was estimated to be 40.2 kJ.mol(-1). After 11 cycles, the catalysts remained 51% initial activity. Using one-step preparation of catalysts showed good catalytic activity, which is beneficial to industrial applications in the future.
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