Applications of time-resolved synchrotron X-ray diffraction to cation exchange, crystal growth and biomineralization reactions

作者：Heaney P J^*; Post J E; Fischer T B; Hummer D R; Lopano C L; Wall A J

来源：Mineralogical Magazine, 2008, 72(1): 179-184.

DOI：10.1180/minmag.2008.072.1.179

Advances in the design of environmental reaction cells and in the collection of X-ray diffraction data are transforming Our ability to study mineral-fluid interactions. The resulting increase in time resolution now allows for the determination of rate laws for mineral reactions that are coupled to atomic-scale changes in crystal structure. Here we address the extension of time-resolved synchrotron diffraction techniques to four areas of critical importance to the cycling of metals in soils: (1) cation exchange (2) biomineralization; (3) stable isotope fractionation during redox reactions; and (4) nucleation and growth of nanoscale oxyhydroxides.

• 出版日期2008-2