251
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Son HJ, Jin S, Patwardhan S, Wezenberg SJ, Jeong NC, So M, Wilmer CE, Sarjeant AA, Schatz GC, Snurr RQ, Farha OK, Wiederrecht GP, Hupp JT. Light-harvesting and ultrafast energy migration in porphyrin-based metal-organic frameworks. J Am Chem Soc 2013; 135:862-9. [PMID: 23249338 DOI: 10.1021/ja310596a] [Citation(s) in RCA: 375] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Given that energy (exciton) migration in natural photosynthesis primarily occurs in highly ordered porphyrin-like pigments (chlorophylls), equally highly ordered porphyrin-based metal-organic frameworks (MOFs) might be expected to exhibit similar behavior, thereby facilitating antenna-like light-harvesting and positioning such materials for use in solar energy conversion schemes. Herein, we report the first example of directional, long-distance energy migration within a MOF. Two MOFs, namely F-MOF and DA-MOF that are composed of two Zn(II) porphyrin struts [5,15-dipyridyl-10,20-bis(pentafluorophenyl)porphinato]zinc(II) and [5,15-bis[4-(pyridyl)ethynyl]-10,20-diphenylporphinato]zinc(II), respectively, were investigated. From fluorescence quenching experiments and theoretical calculations, we find that the photogenerated exciton migrates over a net distance of up to ~45 porphyrin struts within its lifetime in DA-MOF (but only ~3 in F-MOF), with a high anisotropy along a specific direction. The remarkably efficient exciton migration in DA-MOF is attributed to enhanced π-conjugation through the addition of two acetylene moieties in the porphyrin molecule, which leads to greater Q-band absorption intensity and much faster exciton-hopping (energy transfer between adjacent porphyrin struts). The long distance and directional energy migration in DA-MOF suggests promising applications of this compound or related compounds in solar energy conversion schemes as an efficient light-harvesting and energy-transport component.
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252
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Garibay SJ, Weston MH, Mondloch JE, Colón YJ, Farha OK, Hupp JT, Nguyen ST. Accessing functionalized porous aromatic frameworks (PAFs) through a de novo approach. CrystEngComm 2013. [DOI: 10.1039/c2ce26595h] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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253
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Lalonde MB, Getman RB, Lee JY, Roberts JM, Sarjeant AA, Scheidt KA, Georgiev PA, Embs JP, Eckert J, Farha OK, Snurr RQ, Hupp JT. A zwitterionic metal–organic framework with free carboxylic acid sites that exhibits enhanced hydrogen adsorption energies. CrystEngComm 2013. [DOI: 10.1039/c3ce40198g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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254
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Peng Y, Srinivas G, Wilmer CE, Eryazici I, Snurr RQ, Hupp JT, Yildirim T, Farha OK. Simultaneously high gravimetric and volumetric methane uptake characteristics of the metal–organic framework NU-111. Chem Commun (Camb) 2013; 49:2992-4. [DOI: 10.1039/c3cc40819a] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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255
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Weston MH, Peterson GW, Browe MA, Jones P, Farha OK, Hupp JT, Nguyen ST. Removal of airborne toxic chemicals by porous organic polymers containing metal–catecholates. Chem Commun (Camb) 2013; 49:2995-7. [DOI: 10.1039/c3cc40475g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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256
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Clingerman DJ, Kennedy RD, Mondloch JE, Sarjeant AA, Hupp JT, Farha OK, Mirkin CA. An exceptionally high boron content supramolecular cuboctahedron. Chem Commun (Camb) 2013; 49:11485-7. [DOI: 10.1039/c3cc44173c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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257
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Takaishi S, DeMarco EJ, Pellin MJ, Farha OK, Hupp JT. Solvent-assisted linker exchange (SALE) and post-assembly metallation in porphyrinic metal–organic framework materials. Chem Sci 2013. [DOI: 10.1039/c2sc21516k] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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258
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Tanabe KK, Siladke NA, Broderick EM, Kobayashi T, Goldston JF, Weston MH, Farha OK, Hupp JT, Pruski M, Mader EA, Johnson MJA, Nguyen ST. Stabilizing unstable species through single-site isolation: a catalytically active TaV trialkyl in a porous organic polymer. Chem Sci 2013. [DOI: 10.1039/c3sc22268c] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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259
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Mondloch JE, Karagiaridi O, Farha OK, Hupp JT. Activation of metal–organic framework materials. CrystEngComm 2013. [DOI: 10.1039/c3ce41232f] [Citation(s) in RCA: 195] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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260
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Katz MJ, Brown ZJ, Colón YJ, Siu PW, Scheidt KA, Snurr RQ, Hupp JT, Farha OK. A facile synthesis of UiO-66, UiO-67 and their derivatives. Chem Commun (Camb) 2013; 49:9449-51. [DOI: 10.1039/c3cc46105j] [Citation(s) in RCA: 1087] [Impact Index Per Article: 98.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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261
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Jeong NC, Son HJ, Prasittichai C, Lee CY, Jensen RA, Farha OK, Hupp JT. Effective Panchromatic Sensitization of Electrochemical Solar Cells: Strategy and Organizational Rules for Spatial Separation of Complementary Light Harvesters on High-Area Photoelectrodes. J Am Chem Soc 2012; 134:19820-7. [DOI: 10.1021/ja308725r] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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262
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Katz MJ, Riha SC, Jeong NC, Martinson AB, Farha OK, Hupp JT. Toward solar fuels: Water splitting with sunlight and “rust”? Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.06.017] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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263
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Karagiaridi O, Lalonde MB, Bury W, Sarjeant AA, Farha OK, Hupp JT. Opening ZIF-8: A Catalytically Active Zeolitic Imidazolate Framework of Sodalite Topology with Unsubstituted Linkers. J Am Chem Soc 2012; 134:18790-6. [DOI: 10.1021/ja308786r] [Citation(s) in RCA: 320] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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264
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Strutt NL, Fairen-Jimenez D, Iehl J, Lalonde MB, Snurr RQ, Farha OK, Hupp JT, Stoddart JF. Incorporation of an A1/A2-Difunctionalized Pillar[5]arene into a Metal–Organic Framework. J Am Chem Soc 2012; 134:17436-9. [DOI: 10.1021/ja3082523] [Citation(s) in RCA: 222] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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265
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Farha OK, Eryazici I, Jeong NC, Hauser BG, Wilmer CE, Sarjeant AA, Snurr RQ, Nguyen ST, Yazaydın AÖ, Hupp JT. Metal-organic framework materials with ultrahigh surface areas: is the sky the limit? J Am Chem Soc 2012. [PMID: 22906112 DOI: 10.1021/ja3055639/suppl_file/ja3055639_si_004.pdf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
We have synthesized, characterized, and computationally simulated/validated the behavior of two new metal-organic framework (MOF) materials displaying the highest experimental Brunauer-Emmett-Teller (BET) surface areas of any porous materials reported to date (~7000 m(2)/g). Key to evacuating the initially solvent-filled materials without pore collapse, and thereby accessing the ultrahigh areas, is the use of a supercritical CO(2) activation technique. Additionally, we demonstrate computationally that by shifting from phenyl groups to "space efficient" acetylene moieties as linker expansion units, the hypothetical maximum surface area for a MOF material is substantially greater than previously envisioned (~14600 m(2)/g (or greater) versus ~10500 m(2)/g).
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266
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Farha OK, Eryazici I, Jeong NC, Hauser BG, Wilmer CE, Sarjeant AA, Snurr RQ, Nguyen ST, Yazaydın AÖ, Hupp JT. Metal-organic framework materials with ultrahigh surface areas: is the sky the limit? J Am Chem Soc 2012; 134:15016-21. [PMID: 22906112 DOI: 10.1021/ja3055639] [Citation(s) in RCA: 892] [Impact Index Per Article: 74.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have synthesized, characterized, and computationally simulated/validated the behavior of two new metal-organic framework (MOF) materials displaying the highest experimental Brunauer-Emmett-Teller (BET) surface areas of any porous materials reported to date (~7000 m(2)/g). Key to evacuating the initially solvent-filled materials without pore collapse, and thereby accessing the ultrahigh areas, is the use of a supercritical CO(2) activation technique. Additionally, we demonstrate computationally that by shifting from phenyl groups to "space efficient" acetylene moieties as linker expansion units, the hypothetical maximum surface area for a MOF material is substantially greater than previously envisioned (~14600 m(2)/g (or greater) versus ~10500 m(2)/g).
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267
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Lu G, Farha OK, Zhang W, Huo F, Hupp JT. Engineering ZIF-8 thin films for hybrid MOF-based devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:3970-4. [PMID: 22718482 DOI: 10.1002/adma.201202116] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Indexed: 05/15/2023]
Abstract
Patterned metal-organic framework, ZIF-8 thin films can be generated by using standard photolithography or via selective growth with the aid of microcontact printing. The alternate chemical deposition (of ZIF-8) and physical deposition (of metallic materials) allow the insertion of metal layers in the ZIF-8 film that could serve as multifunctional chemical sensors for vapors and gases.
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268
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Williams VO, Jeong NC, Prasittichai C, Farha OK, Pellin MJ, Hupp JT. Fast transporting ZnO-TiO2 coaxial photoanodes for dye-sensitized solar cells based on ALD-modified SiO2 aerogel frameworks. ACS NANO 2012; 6:6185-6196. [PMID: 22721529 DOI: 10.1021/nn3015695] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A doubly coaxial photoanode architecture based on templated SiO(2) aerogels was fabricated on transparent conducting oxides for use in dye-sensitized solar cells (DSSCs). These templates were coated with ZnO via atomic layer deposition (ALD) to yield an electronically interconnected, low-density, high-surface-area, semiconductor framework. Addition of a thin conformal layer of a second metal oxide (alumina, zirconia, or titania) via ALD was found to suppress the dissolution of ZnO that otherwise occurs when it is soaked in alcohol solutions containing acidic dyes used for sensitization or in acetonitrile solutions containing a pyridine derivative and the iodide/tri-iodide (I(-)/I(-)(3)) redox shuttle. Electron transport in SiO(2)-ZnO-TiO(2) photoelectrodes was found to be nearly 2 orders of magnitude faster than in SiO(2)-TiO(2) structures, implying that the interior ZnO sheath serves as the primary electron conduit. In contrast, rates of electron interception by the oxidized form of the redox shuttle were observed to decrease when a TiO(2) shell was added to SiO(2)-ZnO, with the decreases becoming more significant as the thickness of the titania shell increases. These effects lead to improvements in efficiency for DSSCs that utilize I(-)/I(-)(3), but much larger improvements for DSSCs utilizing ferrocene/ferrocenium, a notoriously fast redox shuttle. For the former, overall energy conversion efficiencies maximize at 4.0%. From a variety of experiments, the primary factor limiting aerogel-based DSSC performance is light loss due to scattering. Nevertheless, variants of the doubly coaxial structure may prove useful in devising DSSCs that can achieve excellent energy conversion efficiencies even with fast redox shuttles.
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269
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Lalonde MB, Farha OK, Scheidt KA, Hupp JT. N-Heterocyclic Carbene-Like Catalysis by a Metal–Organic Framework Material. ACS Catal 2012. [DOI: 10.1021/cs300260f] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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270
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Farha OK, Wilmer CE, Eryazici I, Hauser BG, Parilla PA, O’Neill K, Sarjeant AA, Nguyen ST, Snurr RQ, Hupp JT. Designing Higher Surface Area Metal–Organic Frameworks: Are Triple Bonds Better Than Phenyls? J Am Chem Soc 2012; 134:9860-3. [DOI: 10.1021/ja302623w] [Citation(s) in RCA: 180] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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271
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Son HJ, Wang X, Prasittichai C, Jeong NC, Aaltonen T, Gordon RG, Hupp JT. Glass-Encapsulated Light Harvesters: More Efficient Dye-Sensitized Solar Cells by Deposition of Self-Aligned, Conformal, and Self-Limited Silica Layers. J Am Chem Soc 2012; 134:9537-40. [DOI: 10.1021/ja300015n] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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272
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Roberts JM, Fini BM, Sarjeant AA, Farha OK, Hupp JT, Scheidt KA. Urea Metal–Organic Frameworks as Effective and Size-Selective Hydrogen-Bond Catalysts. J Am Chem Soc 2012; 134:3334-7. [DOI: 10.1021/ja2108118] [Citation(s) in RCA: 266] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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273
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Bae YS, Lee CY, Kim KC, Farha OK, Nickias P, Hupp JT, Nguyen ST, Snurr RQ. High Propene/Propane Selectivity in Isostructural Metal-Organic Frameworks with High Densities of Open Metal Sites. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107534] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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274
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Bae YS, Lee CY, Kim KC, Farha OK, Nickias P, Hupp JT, Nguyen ST, Snurr RQ. High Propene/Propane Selectivity in Isostructural Metal-Organic Frameworks with High Densities of Open Metal Sites. Angew Chem Int Ed Engl 2012; 51:1857-60. [DOI: 10.1002/anie.201107534] [Citation(s) in RCA: 361] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Indexed: 11/12/2022]
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275
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Totten RK, Ryan P, Kang B, Lee SJ, Broadbelt LJ, Snurr RQ, Hupp JT, Nguyen ST. Enhanced catalytic decomposition of a phosphate triester by modularly accessible bimetallic porphyrin dyads and dimers. Chem Commun (Camb) 2012; 48:4178-80. [DOI: 10.1039/c2cc17568a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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