Abstract
Amorphous copper sulfide precipitates, synthesised from Cu(NO3)2 solution and H2S/Na2S, have been studied by XAS. They all contain Cu(I) and age to covellite, but their initial form depends on the concentration of the Cu(II) solution. Low concentration solutions give rise to a brown sol, which contains trigonally coordinated Cu(I), while more concentrated solutions produce a black floc, which has a close CuCu interaction of 2.66 Å similar to that in anilite, Cu7S4 and low chalcocite, Cu2S. © 1995.
Original language | English |
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Pages (from-to) | 609-610 |
Number of pages | 1 |
Journal | Physica B: Condensed Matter |
Volume | 208-209 |
Issue number | C |
DOIs | |
Publication status | Published - 1 Mar 1995 |