Synthesis of Mesostructured Copper Sulfide by Cation Exchange and Liquid-Crystal Templating


  • Authors thank Jonathan R. I. Lee and Theodore F. Baumann for helpful discussions, Jeffery Tok for the use of the UV-vis spectrometer and Cheng Saw for the XRD measurements. C. R. L acknowledges the Student Employee Graduate Research Fellowship Program (SEGRF) at LLNL for financial support. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract no. W-7405-ENG-48.


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Supermolecular assembly techniques combined with the cation exchange of nanoparticles transforms mesostructured CdS into mesostructured CuS (see figure). The resulting materials retain the overall integrity of the original mesostructured material after the cation-exchange process.