期刊
FRONTIER OF NANOSCIENCE AND TECHNOLOGY
卷 694, 期 -, 页码 769-772出版社
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/MSF.694.769
关键词
Cu2O; particle size; kinetics parameter; hydrogen reductions
The 0.4mol.L-1CuSO4 liquor and 5mol.L-1NaOH liquor were prepared by CuSO4 center dot 5H(2)O 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 degrees C.min(-1) and reduction reaction gas was N-2 and H-2 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 1.22x10(16) ,2.84x10(22) ,1.41x10(30), increase with granularity Cu2O. The reaction progression leave each other 1.20,1.12,1.05, decrease with granularity Cu2O.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据