科研之友
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摘要
The appearance of Cu O Cuj(2-) species with increasing temperature is observed by in. infrared spectra.Cu-O-Cu](2+) is formed by dehydrated dimer composed of two Cu(OH)(1) Low copper content sample needs higher temperature to form Cu O Cu](2+) than high copper-conten ones. Cu(2+) ions can be reduced Cu by release of oxygen from Cu-O-Cu](2) oxygen atmosphere, an. equilibrium can be reached between the oxygen in Cu O Cu(2-) and the oxygen in gas phase at high temperature. The property or extra lattice oxygen is an important factor in determining the change of copper valence.
- 出版日期1995
- 单位中国科学技术大学
