ORCID Profile
0000-0001-9948-0814
Current Organisation
University of California, Irvine
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Publisher: Trans Tech Publications, Ltd.
Date: 09-2016
DOI: 10.4028/WWW.SCIENTIFIC.NET/KEM.707.135
Abstract: Incorporation of photosensitizer complex, Ir (bpy) 3 3+ inside zeolite Y supercages was done via “ship-in-a-bottle” synthesis method. Elemental analysis of the Ir (III) exchanged – zeolite Y showed that the ratio of Ir to Al to Si (Ir:Al:Si) was 1:1.6:2. The light-harvesting ability of the iridium complex has been observed in the absorption spectra of the composite. Grafting the surface of the zeolite with TiO 2 was done to assess the possibility of electron injection from the complex to a photocatalytic surface. Results of the degradation study using Ir (bpy) 3 3+ /zeolite Y/TiO 2 assembly resulted in a two-fold increase in the rate of degradation of RhB as compared to the TiO 2 alone. This paper demonstrates the potential application of Ir (III) dyes entrapped inside a zeolite matrix for the construction of photocatalytic assemblies.
Publisher: Springer Science and Business Media LLC
Date: 23-11-2020
Publisher: Proceedings of the National Academy of Sciences
Date: 15-08-2022
Abstract: Metallic charge transport and porosity appear almost mutually exclusive. Whereas metals demand large numbers of free carriers and must have minimal impurities and lattice vibrations to avoid charge scattering, the voids in porous materials limit the carrier concentration, provide le space for impurities, and create more charge-scattering vibrations due to the size and flexibility of the lattice. No microporous material has been conclusively shown to behave as a metal. Here, we demonstrate that single crystals of the porous metal–organic framework Ln 1.5 (2,3,6,7,10,11-hexaoxytriphenylene) (Ln = La, Nd) are metallic. The materials display the highest room-temperature conductivities of all porous materials, reaching values above 1,000 S/cm. Single crystals of the compounds additionally show clear temperature-deactivated charge transport, a hallmark of a metallic material. Lastly, a structural transition consistent with charge density wave ordering, present only in metals and rare in any materials, provides additional conclusive proof of the metallic nature of the materials. Our results provide an ex le of a metal with porosity intrinsic to its structure. We anticipate that the combination of porosity and chemical tunability that these materials possess will provide a unique handle toward controlling the unconventional states that lie within them, such as charge density waves that we observed, or perhaps superconductivity.
Publisher: American Chemical Society (ACS)
Date: 10-12-2019
Location: United States of America
No related grants have been discovered for Maxx Arguilla.