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在核废料地质处置库中, UO2乏燃料将很快被氧化成U6+化合物. 由于大多数U6+化合物都具有层状或链状结构, 并且通常含有多个水分子团, 在某些结晶学位置上可能出现不同元素的类质同象混合或空位, 其中与水分子有关的氢键也可能无序排列, 因而产生类质同象混合熵和结构无序熵. 通过系统搜集铀酸盐、UO22+的氢氧化物、磷酸盐、硅酸盐、碳酸盐和硫酸盐的晶体结构分析测定结果, 发现至少31种U6+化合物...
The Structure of U6+ Sorption Complexes on Vermiculite and Hydrobiotite
Cation Exchange EXAFS Sorption Surface Complex Uranium Uranyl Vermiculite XANES XRD
2011/12/7
Abstract: The sorption of the uranyl oxo-cation (UO22+)at different types of binding sites on layer silicate mineral surfaces was investigated. Well-characterized samples of vermiculite and hydrobioti...
The Gibbs free energies and enthalpies of formation of U6+ phases: An empirical method of prediction (v. 84, 650-664,1999)
Gibbs free enthalpies of formation empirical method prediction U6+ phases
2012/3/31
Uranyl minerals form as a result of the oxidation and alteration of uraninite, UO . These uranyl2+xin used nuclear fuels under
phases are also important alteration products of the corrosion of UO
ox...
The Gibbs free energies and enthalpies of formation of U6+ phases: An empirical method of prediction
oxidation and alteration of uraninite empirical method prediction U6+ phases
2012/3/31
Uranyl minerals form as a result of the oxidation and alteration of uraninite, UO . These uranyl
in used nuclear fuels under
phases are also important alteration products of the corrosion of UO
oxi...