1
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Balasanthiran C, Jensen S, Spanjers CS, Varapragasam SJP, Rioux RM, Kilin D, Hoefelmeyer JD. Quantitative Attachment of Bimetal Combinations of Transition-Metal Ions to the Surface of TiO 2 Nanorods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5422-5434. [PMID: 29708754 DOI: 10.1021/acs.langmuir.8b00337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We report the sequential, quantitative loading of transition-metal ions (Cr3+, Mn2+, Fe2+, Co2+, Ni2+, and Cu2+) onto the surface of rod-shaped anatase TiO2 nanocrystals in bimetallic combinations (6 C2 = 15) to form M,M'-TiO2 nanocrystals. The materials were characterized with transmission electron microscopy (TEM), powder X-ray diffraction (XRD), elemental analysis, X-ray photoelectron spectroscopy (XPS), and UV-visible spectroscopy. TEM and XRD data indicate that the sequential adsorption of metal ions occurs with the retention of the phase and morphology of the nanocrystal. Atomistic models of the M,M'-TiO2 nanocrystals were optimized with density functional theory calculations. Calculated UV-visible absorption spectra and partial charge density maps of the donor and acceptor states for the electronic transitions indicate the importance of metal-to-metal charge transfer (MMCT) processes.
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Affiliation(s)
- Choumini Balasanthiran
- Department of Chemistry , University of South Dakota , 414 E. Clark Street , Vermillion , South Dakota 57069 , United States
| | - Stephanie Jensen
- Department of Chemistry , University of South Dakota , 414 E. Clark Street , Vermillion , South Dakota 57069 , United States
| | | | - Shelton J P Varapragasam
- Department of Chemistry , University of South Dakota , 414 E. Clark Street , Vermillion , South Dakota 57069 , United States
| | | | - Dmitri Kilin
- Department of Chemistry , University of South Dakota , 414 E. Clark Street , Vermillion , South Dakota 57069 , United States
| | - James D Hoefelmeyer
- Department of Chemistry , University of South Dakota , 414 E. Clark Street , Vermillion , South Dakota 57069 , United States
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2
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Đokić M, Soo HS. Artificial photosynthesis by light absorption, charge separation, and multielectron catalysis. Chem Commun (Camb) 2018; 54:6554-6572. [DOI: 10.1039/c8cc02156b] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We highlight recent novel approaches in the field of artificial photosynthesis. We emphasize the potential of a highly modular plug-and-play concept that we hope will persuade the community to explore a more inclusive variety of multielectron redox catalysis to complement the proton reduction and water oxidation half-reactions in traditional solar water splitting systems.
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Affiliation(s)
- Miloš Đokić
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Han Sen Soo
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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3
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Mohapatra L, Parida K. A review of solar and visible light active oxo-bridged materials for energy and environment. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00116a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Oxo-bridged systems are versatile photo-redox catalysts for environmental decontamination and artificial photosynthesis.
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Affiliation(s)
- Lagnamayee Mohapatra
- Qatar Environment and Energy Research Institute (QEERI)
- Hamad Bin Khalifa University
- Qatar Foundation
- Doha
- Qatar
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology
- Siksha ‘O’Anusandhan University
- Bhubaneswar-751030
- India
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4
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Alonso-Mori R, Asa K, Bergmann U, Brewster AS, Chatterjee R, Cooper JK, Frei HM, Fuller FD, Goggins E, Gul S, Fukuzawa H, Iablonskyi D, Ibrahim M, Katayama T, Kroll T, Kumagai Y, McClure BA, Messinger J, Motomura K, Nagaya K, Nishiyama T, Saracini C, Sato Y, Sauter NK, Sokaras D, Takanashi T, Togashi T, Ueda K, Weare WW, Weng TC, Yabashi M, Yachandra VK, Young ID, Zouni A, Kern JF, Yano J. Towards characterization of photo-excited electron transfer and catalysis in natural and artificial systems using XFELs. Faraday Discuss 2016; 194:621-638. [PMID: 27711803 PMCID: PMC5177497 DOI: 10.1039/c6fd00084c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ultra-bright femtosecond X-ray pulses provided by X-ray Free Electron Lasers (XFELs) open capabilities for studying the structure and dynamics of a wide variety of biological and inorganic systems beyond what is possible at synchrotron sources. Although the structure and chemistry at the catalytic sites have been studied intensively in both biological and inorganic systems, a full understanding of the atomic-scale chemistry requires new approaches beyond the steady state X-ray crystallography and X-ray spectroscopy at cryogenic temperatures. Following the dynamic changes in the geometric and electronic structure at ambient conditions, while overcoming X-ray damage to the redox active catalytic center, is key for deriving reaction mechanisms. Such studies become possible by using the intense and ultra-short femtosecond X-ray pulses from an XFEL, where sample is probed before it is damaged. We have developed methodology for simultaneously collecting X-ray diffraction data and X-ray emission spectra, using an energy dispersive spectrometer, at ambient conditions, and used this approach to study the room temperature structure and intermediate states of the photosynthetic water oxidizing metallo-protein, photosystem II. Moreover, we have also used this setup to simultaneously collect the X-ray emission spectra from multiple metals to follow the ultrafast dynamics of light-induced charge transfer between multiple metal sites. A Mn-Ti containing system was studied at an XFEL to demonstrate the efficacy and potential of this method.
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Affiliation(s)
- R Alonso-Mori
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - K Asa
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan
| | - U Bergmann
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - A S Brewster
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - R Chatterjee
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - J K Cooper
- Joint Center for Artificial Photosynthesis (JCAP), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA
| | - H M Frei
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - F D Fuller
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - E Goggins
- Dept. of Chemistry, North Carolina State University, 2620 Yarborough Rd., Raleigh, NC 27695-8204, USA
| | - S Gul
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - H Fukuzawa
- IMRAM, Tohoku U., Sendai 980-8577, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | | | - M Ibrahim
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - T Katayama
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8/SACLA, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - T Kroll
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Y Kumagai
- IMRAM, Tohoku U., Sendai 980-8577, Japan
| | - B A McClure
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - J Messinger
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - K Motomura
- IMRAM, Tohoku U., Sendai 980-8577, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - K Nagaya
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan
| | - C Saracini
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - Y Sato
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan
| | - N K Sauter
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - D Sokaras
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - T Togashi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8/SACLA, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - K Ueda
- IMRAM, Tohoku U., Sendai 980-8577, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - W W Weare
- Dept. of Chemistry, North Carolina State University, 2620 Yarborough Rd., Raleigh, NC 27695-8204, USA
| | - T-C Weng
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
| | - M Yabashi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8/SACLA, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - V K Yachandra
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - I D Young
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - A Zouni
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - J F Kern
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA and Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - J Yano
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA. and Joint Center for Artificial Photosynthesis (JCAP), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA and IMRAM, Tohoku U., Sendai 980-8577, Japan
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5
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Abstract
Artificial photosynthesis is an attractive approach for renewable fuel generation because it offers the prospect of a technology suitable for deployment on highly abundant, non-arable land. Recent leaps forward in the development of efficient and durable light absorbers and catalysts for oxygen evolution and the growing attention to catalysts for carbon dioxide activation brings into focus the tasks of hierarchically integrating the components into assemblies for closing of the photosynthetic cycle. A particular challenge is the efficient coupling of the multi-electron processes of CO2 reduction and H2O oxidation. Among the most important requirements for a complete integrated system are catalytic rates that match the solar flux, efficient charge transport between the various components, and scalability of the photosynthetic assembly on the unprecedented scale of terawatts in order to have impact on fuel consumption. To address these challenges, we have developed a heterogeneous inorganic materials approach with molecularly precise control of light absorption and charge transport pathways. Oxo-bridged heterobinuclear units with metal-to-metal charge-transfer transitions absorbing deep in the visible act as single photon, single charge transfer pumps for driving multi-electron catalysts. A photodeposition method has been introduced for the spatially directed assembly of nanoparticle catalysts for selective coupling to the donor or acceptor metal of the light absorber. For CO2 reduction, a Cu oxide cluster is coupled to the Zr center of a ZrOCo light absorber, while coupling of an Ir nanoparticle catalyst for water oxidation to the Co donor affords closing of the photosynthetic cycle of CO2 conversion by H2O to CO and O2. Optical, vibrational, and X-ray spectroscopy provide detailed structural knowledge of the polynuclear assemblies. Time resolved visible and rapid-scan FT-IR studies reveal charge transfer mechanisms and transient surface intermediates under photocatalytic conditions for guiding performance improvements. Separation of the water oxidation and carbon dioxide reduction half reactions by a membrane is essential for efficient photoreduction of CO2 by H2O to liquid fuel products. A concept of a macroscale artificial photosystem consisting of arrays of Co oxide-silica core-shell nanotubes is introduced in which each tube operates as a complete, independent photosynthetic unit with built-in membrane separation. The ultrathin amorphous silica shell with embedded molecular wires functions as a proton conducting, molecule impermeable membrane. Photoelectrochemical and transient optical measurements confirm tight control of charge transport through the membrane by the orbital energetics of the wire molecules. Hierarchical arrangement of the components is accomplished by a combination of photodeposition, controlled anchoring, and atomic layer deposition methods.
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Affiliation(s)
- Wooyul Kim
- Molecular
Biophysics and
Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Eran Edri
- Molecular
Biophysics and
Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Heinz Frei
- Molecular
Biophysics and
Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
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6
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Glass EN, Fielden J, Huang Z, Xiang X, Musaev DG, Lian T, Hill CL. Transition Metal Substitution Effects on Metal-to-Polyoxometalate Charge Transfer. Inorg Chem 2016; 55:4308-19. [PMID: 27082443 DOI: 10.1021/acs.inorgchem.6b00060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of hetero-bimetallic transition metal-substituted polyoxometalates (TMSPs) were synthesized based on the Co(II)-centered ligand [Co(II)W11O39](10-). The eight complex series, [Co(II)(M(x)OHy)W11O39]((12-x-y)-) (M(x)OHy = V(IV)O, Cr(III)(OH2), Mn(II)(OH2), Fe(III)(OH2), Co(II)(OH2), Ni(II)(OH2), Cu(II)(OH2), Zn(II)(OH2)), of which six are reported for the first time, was synthesized starting from [Co(III)W11O39](9-) and studied using spectroscopic, electrochemical, and computational techniques to evaluate the influence of substituted transition metals on the photodynamics of the metal-to-polyoxometalate charge transfer (MPCT) transition. The bimetallic complexes all show higher visible light absorption than the plenary [Co(II)W12O40](6-) and demonstrate the same MPCT transition as the plenary complex, but they have shorter excited-state lifetimes (sub-300 ps in aqueous media). The decreased lifetimes are rationalized on the basis of nonradiative relaxation due to coordinating aqua ligands, increased interaction with cations due to increased negative charge, and the energy gap law, with the strongest single factor appearing to be the charge on the anion. The most promising results are from the Cr- and Fe-substituted systems, which retain excited-state lifetimes at least 50% of that of [Co(II)W12O40](6-) while more than tripling the absorbance at 400 nm.
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Affiliation(s)
- Elliot N Glass
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States
| | - John Fielden
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States.,WestCHEM, School of Chemistry, University of Glasgow , Glasgow G12 8QQ, United Kingdom.,School of Chemistry, University of East Anglia , Norwich NR4 7TJ, United Kingdom
| | - Zhuangqun Huang
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States
| | - Xu Xiang
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States.,State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Djamaladdin G Musaev
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States
| | - Tianquan Lian
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States
| | - Craig L Hill
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia 30322, United States
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7
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Goggins EM, Lekich TT, Weare WW, Sommer RD, Ribeiro MA, Pinheiro CB. A Periodic Walk through a Series of First-Row, Oxido-Bridged, Heterodimetallic Molecules: Synthesis and Structure. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501325] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Kim W, McClure BA, Edri E, Frei H. Coupling carbon dioxide reduction with water oxidation in nanoscale photocatalytic assemblies. Chem Soc Rev 2016; 45:3221-43. [DOI: 10.1039/c6cs00062b] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Closing the photosynthetic cycle on the nanometer scale under membrane separation of the half reactions for developing scalable artificial photosystems.
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Affiliation(s)
- Wooyul Kim
- Molecular Biophysics and Integrated Bioimaging Division
- Lawrence Berkeley National Laboratory
- University of California
- Berkeley
- USA
| | - Beth Anne McClure
- Molecular Biophysics and Integrated Bioimaging Division
- Lawrence Berkeley National Laboratory
- University of California
- Berkeley
- USA
| | - Eran Edri
- Molecular Biophysics and Integrated Bioimaging Division
- Lawrence Berkeley National Laboratory
- University of California
- Berkeley
- USA
| | - Heinz Frei
- Molecular Biophysics and Integrated Bioimaging Division
- Lawrence Berkeley National Laboratory
- University of California
- Berkeley
- USA
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9
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Wu X, Huang T, Lekich TT, Sommer RD, Weare WW. Synthesis of Unsupported d1–dx Oxido-Bridged Heterobimetallic Complexes Containing VIV: A New Direction for Metal-to-Metal Charge Transfer. Inorg Chem 2015; 54:5322-8. [DOI: 10.1021/acs.inorgchem.5b00370] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Xinyuan Wu
- Department
of Chemistry, North Carolina State University, Campus Box 8204, Raleigh, North Carolina 27695-8204, United States
| | - Tao Huang
- Department
of Chemistry, North Carolina State University, Campus Box 8204, Raleigh, North Carolina 27695-8204, United States
| | - Travis T. Lekich
- Department
of Chemistry, North Carolina State University, Campus Box 8204, Raleigh, North Carolina 27695-8204, United States
| | - Roger D. Sommer
- Department
of Chemistry, North Carolina State University, Campus Box 8204, Raleigh, North Carolina 27695-8204, United States
| | - Walter W. Weare
- Department
of Chemistry, North Carolina State University, Campus Box 8204, Raleigh, North Carolina 27695-8204, United States
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10
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Huang T, Wu X, Song X, Xu H, Smirnova TI, Weare WW, Sommer RD. Ferromagnetic coupling in d1–d3 linear oxido-bridged heterometallic complexes: ground-state models of metal-to-metal charge transfer excited states. Dalton Trans 2015; 44:18937-44. [PMID: 26466862 DOI: 10.1039/c5dt02719e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Linear heterobimetallic oxido-bridged d1–d3 compounds are described which are proposed as models for magnetic coupling of MMCT excited states.
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Affiliation(s)
- Tao Huang
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Xinyuan Wu
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Xiao Song
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Hao Xu
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | | | - Walter W. Weare
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | - Roger D. Sommer
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
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11
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Sahoo DP, Rath D, Nanda B, Parida KM. Transition metal/metal oxide modified MCM-41 for pollutant degradation and hydrogen energy production: a review. RSC Adv 2015. [DOI: 10.1039/c5ra14555d] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Metal/metal oxide modified MCM-41 materials are suitable for various catalytic applications. The high surface area, mesoscopic pore size and tunable pore volume of the materials play a key role in enhancing the catalytic activity.
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Affiliation(s)
- Dipti Prava Sahoo
- Department of Chemistry
- Centre for Nano Science and Nano Technology
- Institute of Technical Education & Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
| | - Dharitri Rath
- Department of Chemistry
- Centre for Nano Science and Nano Technology
- Institute of Technical Education & Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
| | - Binita Nanda
- Department of Chemistry
- Centre for Nano Science and Nano Technology
- Institute of Technical Education & Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
| | - K. M. Parida
- Department of Chemistry
- Centre for Nano Science and Nano Technology
- Institute of Technical Education & Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
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12
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Towards a Molecular Level Understanding of the Multi-Electron Catalysis of Water Oxidation on Metal Oxide Surfaces. Catal Letters 2014. [DOI: 10.1007/s10562-014-1437-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Huang T, Wu X, Weare WW, Sommer RD. Mono-Oxido-Bridged Heterobimetallic and Heterotrimetallic Compounds Containing Titanium(IV) and Chromium(III). Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402800] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Kim W, Yuan G, McClure BA, Frei H. Light Induced Carbon Dioxide Reduction by Water at Binuclear ZrOCoII Unit Coupled to Ir Oxide Nanocluster Catalyst. J Am Chem Soc 2014; 136:11034-42. [DOI: 10.1021/ja504753g] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Wooyul Kim
- Physical
Biosciences Division,
Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Guangbi Yuan
- Physical
Biosciences Division,
Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Beth Anne McClure
- Physical
Biosciences Division,
Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
| | - Heinz Frei
- Physical
Biosciences Division,
Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
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15
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Glass EN, Fielden J, Kaledin AL, Musaev DG, Lian T, Hill CL. Extending Metal-to-Polyoxometalate Charge Transfer Lifetimes: The Effect of Heterometal Location. Chemistry 2014; 20:4297-307. [DOI: 10.1002/chem.201304119] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/18/2014] [Indexed: 01/09/2023]
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16
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Yuan G, Agiral A, Pellet N, Kim W, Frei H. Inorganic core–shell assemblies for closing the artificial photosynthetic cycle. Faraday Discuss 2014; 176:233-49. [DOI: 10.1039/c4fd00150h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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17
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Huang W, Shu Z, Shi J. Assembly of Ti/Ce metal-to-metal charge-transfer moieties on a graphene oxide surface and their catalytic activity. CATAL COMMUN 2013. [DOI: 10.1016/j.catcom.2012.12.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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18
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Chen J, Qin S, Song G, Xiang T, Xin F, Yin X. Shape-controlled solvothermal synthesis of Bi2S3 for photocatalytic reduction of CO2 to methyl formate in methanol. Dalton Trans 2013; 42:15133-8. [DOI: 10.1039/c3dt51887f] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Huang Z, Geletii YV, Musaev DG, Hill CL, Lian T. Spectroscopic Studies of Light-driven Water Oxidation Catalyzed by Polyoxometalates. Ind Eng Chem Res 2012. [DOI: 10.1021/ie202950h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhuangqun Huang
- Department of Chemistry, and Cherry
L. Emerson Center
for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Yurii V. Geletii
- Department of Chemistry, and Cherry
L. Emerson Center
for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Djamaladdin G. Musaev
- Department of Chemistry, and Cherry
L. Emerson Center
for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Craig L. Hill
- Department of Chemistry, and Cherry
L. Emerson Center
for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Tianquan Lian
- Department of Chemistry, and Cherry
L. Emerson Center
for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
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Zhao C, Huang Z, Rodríguez-Córdoba W, Kambara CS, O'Halloran KP, Hardcastle KI, Musaev DG, Lian T, Hill CL. Synthesis and characterization of a metal-to-polyoxometalate charge transfer molecular chromophore. J Am Chem Soc 2011; 133:20134-7. [PMID: 22092140 DOI: 10.1021/ja209360x] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[P(4)W(35)O(124){Re(CO)(3)}(2)](16-) (1), a Wells-Dawson [α(2)-P(2)W(17)O(61)](10-) polyoxometalate (POM)-supported [Re(CO)(3)](+) complex containing covalent W(VI)-O-Re(I) bonds has been synthesized and characterized by several methods, including X-ray crystallography. This complex shows a high visible absorptivity (ε(470 nm) = 4000 M(-1) cm(-1) in water) due to the formation of a Re(I)-to-POM charge transfer (MPCT) band. The complex was investigated by computational modeling and transient absorption measurements in the visible and mid-IR regions. Optical excitation of the MPCT transition results in instantaneous (<50 fs) electron transfer from the Re(I) center to the POM ligand.
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Affiliation(s)
- Chongchao Zhao
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, USA
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Qin S, Xin F, Liu Y, Yin X, Ma W. Photocatalytic reduction of CO2 in methanol to methyl formate over CuO–TiO2 composite catalysts. J Colloid Interface Sci 2011; 356:257-61. [DOI: 10.1016/j.jcis.2010.12.034] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 12/06/2010] [Accepted: 12/07/2010] [Indexed: 11/28/2022]
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