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|Title: ||Interaction between a bimetallic Ni-Co catalyst and micrometer-sized CaO for enhanced H2 production during cellulose decomposition|
|Authors: ||Zhao, M|
|Issue Date: ||1-Jan-2011|
|Citation: ||Zhao, M., Yang, X. S., Church, T. L., Harris, A. T., (2012). Interaction between a bimetallic Ni-Co catalyst and micrometer-sized CaO for enhanced H-2 production during cellulose decomposition. International Journal of Hydrogen Energy, 37(2), 421-431|
|Abstract: ||An SBA-15 supported Niâ€“Co catalyst and micrometer-sized CaO were used as additives in cellulose decomposition in the presence and absence of injected H2O. A thermogravimetric analyser coupled to a mass spectrometer (TG-MS) was used to examine the different roles of the Niâ€“Co catalyst and CaO in tuning the kinetics of decomposition and the distribution of the gaseous products. There existed optimal additive/cellulose ratios beyond which H2 generation could not be enhanced by using more of a single additive. However, the combination of both the additives dramatically promoted selective H2 generation. The mechanism of their interaction is discussed. When the catalyst, CaO, and 1Â vol.% H2O were present, a stable sustained (interval of >150Â Â°C) high-rate (max >80Â vol.%) H2 output resulted. The cumulative H2 yield (250â€“550Â Â°C) reached 688Â ml/g cellulose and the H2 selectivity during this period was nearly 70Â vol.%. The char yield was also minimized, at 5.2%. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.|
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