Interaction Between Hydrogen And Cnts

Current theoretical studies of simple physical adsorption on pure carbon nanotubes predict a maximum of 14 wt under low temperature and ideal conditions. The real adsorption process is likely to be more complicated, and the theoretical simulations have the potential for further refinement. In particular, as more quantitative and microscopically in-depth experimental results become available, the model parameters and assumptions will become more realistic. Only some of the experimental results...

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60 61 62 61 63 63 150 149 149 32 32 83 83 Note represents data unavailable. material to adsorb and desorb hydrogen over a narrower range of pressure may be used in storage systems without wide pressure excursions. High hydrogen-storage capacities on a total sample weight basis were subsequently demonstrated on SWNTs with a large mean diameter of about 1.8 nm produced at high yield by a semicontinuous arc-discharge method 42 . In this study, a sulfur promoter FeS was added, and H2 rather than...

Heterometal Chalcogenides

Ternary chalcopyrite materials such as copper indium dis-elenide CuInSe2 , copper indium disulfide CuInS2 , and copper gallium diselenide CuGaSe2 are potential solar cell materials, given that their direct bandgaps are nearly optimal for the absorption of the solar spectrum. High-quality thin films of solar-cell materials with high specific power W kg-1 are required to fabricate efficient devices. Nanocrystalline films are an attractive alternative to single-crystalline devices that are...

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Single-source approach for preparing semiconductor nanocrystallites in TOPO. Reprinted with permission from 22 , T. Trindade et al., Chem. Mater. 13, 3843 2001 . 2001, American Chemical Society. Figure 26. Single-source approach for preparing semiconductor nanocrystallites in TOPO. Reprinted with permission from 22 , T. Trindade et al., Chem. Mater. 13, 3843 2001 . 2001, American Chemical Society. The importance of using small molecular clusters as syn-thons to extended solid-state...