Paper Title:
Effect of Particle Size on Hydrogen Reduction Reaction Kinetics Parameters of Cu2O Powders
  Abstract

The 0.4mol•L-1CuSO4 liquor and 5mol•L-1NaOH liquor were prepared by CuSO4•5H2O and NaOH as raw materials. The Cu2O powders were prepared by dextrose reducer and PVP dispersant. The DTA-TG-DTG curves obtaining is by SDT 2960 Simultaneous DSC-TGA analysis apparatus. The mensuration condition that rise temperature velocity was 15°C•min-1 and reduction reaction gas was N2 and H2 admixture gas. The kinetics was analysed by DTA-TG-DTG curves. The result indicate that form of CuO was sphericity,the CuO granularity was about 100、200、1000nm. The apparent activation energy leave each other 165.24、247.65、327.01 KJ•mol-1, increase with granularity Cu2O. The frequency gene leave each other 1.22×1016、2.84×1022、1.41×1030, increase with granularity Cu2O. The reaction progression leave each other 1.20、1.12、1.05, decrease with granularity Cu2O.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Materials Science and Engineering
Edited by
Ran Chen
Pages
769-772
DOI
10.4028/www.scientific.net/MSF.694.769
Citation
Z. Y. Li, K. Yu, Y. Gao, J. Liu, D. Jin, Y. C. Zhai, "Effect of Particle Size on Hydrogen Reduction Reaction Kinetics Parameters of Cu2O Powders", Materials Science Forum, Vol. 694, pp. 769-772, 2011
Online since
July 2011
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$32.00
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