12 research outputs found

    Facile Mechanosynthesis of Amorphous Zeolitic Imidazolate Frameworks

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    A fast and efficient mechanosynthesis (ball-milling) method of preparing amorphous zeolitic imidazolate frameworks (ZIFs) from different starting materials is discussed. Using X-ray total scattering, N(2) sorption analysis, and gas pycnometry, these frameworks are indistinguishable from one another and from temperature-amorphized ZIFs. Gas sorption analysis also confirms that they are nonporous once formed, in contrast to activated ZIF-4, which displays interesting gate-opening behavior. Nanoparticles of a prototypical nanoporous substituted ZIF, ZIF-8, were also prepared and shown to undergo amorphization

    How grinding evolves

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    An experimental set-up has been devised to monitor mechanochemical processes in situ, yielding direct insights into mechanistic and kinetic aspects of solid-state reactions that are promoted by grinding, such as the synthesis of metal–organic frameworks

    An Overview on the Development of Electrochemical Capacitors and Batteries – Part I

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