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Pokhrel S, Stahl J, Groeneveld JD, Schowalter M, Rosenauer A, Birkenstock J, Mädler L. Flame Aerosol Synthesis of Metal Sulfides at High Temperature in Oxygen-Lean Atmosphere. Adv Mater 2023:e2211104. [PMID: 37029337 DOI: 10.1002/adma.202211104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 04/03/2023] [Indexed: 05/31/2023]
Abstract
The development of a novel reactive spray technology based on the well-known gas-phase metal oxide synthesis route provides innumerable opportunities for the production of non-oxide nanoparticles. Among these materials, metal sulfides are expected to have a high impact, especially in the development of electrochemical and photochemical high-surface-area materials. As a proof-of-principle, MnS, CoS, Cu2 S, ZnS, Ag2 S, In2 S3 , SnS, and Bi2 S3 are synthesized in an O2 -lean and sulfur-rich environment. In addition, the formation of Cu2 S in a single-droplet combustion experiment is reported. The multiscale approach combining flame sprays with single-droplet combustion is expected to pave the way toward a fundamental understanding of the gas-phase formation of metal sulfides in the future. The knowledge acquired can open the possibility for the development of a next-generation gas-phase technology facilitating the scalable synthesis of functional binary/ternary metal sulfides.
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Affiliation(s)
- Suman Pokhrel
- Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, D-28359, Bremen, Germany
- Leibniz Institute for Materials Engineering IWT, Badgasteiner Straße 3, D-28359, Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, D-28359, Bremen, Germany
| | - Jakob Stahl
- Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, D-28359, Bremen, Germany
- Leibniz Institute for Materials Engineering IWT, Badgasteiner Straße 3, D-28359, Bremen, Germany
| | - Jan Derk Groeneveld
- Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, D-28359, Bremen, Germany
- Leibniz Institute for Materials Engineering IWT, Badgasteiner Straße 3, D-28359, Bremen, Germany
| | - Marco Schowalter
- MAPEX Center for Materials and Processes, University of Bremen, D-28359, Bremen, Germany
- Institute of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, 28359, Bremen, Germany
| | - Andreas Rosenauer
- MAPEX Center for Materials and Processes, University of Bremen, D-28359, Bremen, Germany
- Institute of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, 28359, Bremen, Germany
| | - Johannes Birkenstock
- Faculty of Geosciences/ Crystallography group, University of Bremen, Klagenfurter Str. 2-4, 28359, Bremen, Germany
| | - Lutz Mädler
- Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, D-28359, Bremen, Germany
- Leibniz Institute for Materials Engineering IWT, Badgasteiner Straße 3, D-28359, Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen, D-28359, Bremen, Germany
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2
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Li H, Erinmwingbovo C, Birkenstock J, Schowalter M, Rosenauer A, La Mantia F, Mädler L, Pokhrel S. Double Flame-Fabricated High-Performance AlPO 4/LiMn 2O 4 Cathode Material for Li-Ion Batteries. ACS Appl Energy Mater 2021; 4:4428-4443. [PMID: 34060544 PMCID: PMC8157533 DOI: 10.1021/acsaem.1c00024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/06/2021] [Indexed: 06/02/2023]
Abstract
The spinel LiMn2O4 (LMO) is a promising cathode material for rechargeable Li-ion batteries due to its excellent properties, including cost effectiveness, eco-friendliness, high energy density, and rate capability. The commercial application of LiMn2O4 is limited by its fast capacity fading during cycling, which lowers the electrochemical performance. In the present work, phase-pure and crystalline LiMn2O4 spinel in the nanoscale were synthesized using single flame spray pyrolysis via screening 16 different precursor-solvent combinations. To overcome the drawback of capacity fading, LiMn2O4 was homogeneously mixed with different percentages of AlPO4 using versatile multiple flame sprays. The mixing was realized by producing AlPO4 and LiMn2O4 aerosol streams in two independent flames placed at 20° to the vertical axis. The structural and morphological analyses by X-ray diffraction indicated the formation of a pure LMO phase and/or AlPO4-mixed LiMn2O4. Electrochemical analysis indicated that LMO nanoparticles of 17.8 nm (d BET) had the best electrochemical performance among the pure LMOs with an initial capacity and a capacity retention of 111.4 mA h g-1 and 88% after 100 cycles, respectively. A further increase in the capacity retention to 93% and an outstanding initial capacity of 116.1 mA h g-1 were acquired for 1% AlPO4.
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Affiliation(s)
- Haipeng Li
- Faculty
of Production Engineering, University of
Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
- Leibniz
Institute for Materials Engineering IWT, Badgasteiner Str. 3, 28359 Bremen, Germany
| | - Collins Erinmwingbovo
- Energiespeicher-
und Energiewandlersysteme, Universität
Bremen, Bibliothekstr.
1, 28325 Bremen, Germany
| | - Johannes Birkenstock
- Central
Laboratory for Crystallography and Applied Materials, University of Bremen, 28359 Bremen, Germany
| | - Marco Schowalter
- Institute
of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Andreas Rosenauer
- Institute
of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Fabio La Mantia
- Energiespeicher-
und Energiewandlersysteme, Universität
Bremen, Bibliothekstr.
1, 28325 Bremen, Germany
| | - Lutz Mädler
- Faculty
of Production Engineering, University of
Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
- Leibniz
Institute for Materials Engineering IWT, Badgasteiner Str. 3, 28359 Bremen, Germany
| | - Suman Pokhrel
- Faculty
of Production Engineering, University of
Bremen, Badgasteiner Str. 1, 28359 Bremen, Germany
- Leibniz
Institute for Materials Engineering IWT, Badgasteiner Str. 3, 28359 Bremen, Germany
- Central
Laboratory for Crystallography and Applied Materials, University of Bremen, 28359 Bremen, Germany
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3
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Groeneveld JD, Burianek M, Birkenstock J, Fischer LA, Shannon RD, Fischer RX. Synthesis, revised crystal structures, and refractive indices of ABW-type CsMTiO4 (M = Al, Fe, Ga) and ANA-type CsTi1.10Si1.90O6.50, and the determination of the electronic polarizability of 4-coordinated Ti4+. Z KRIST-CRYST MATER 2020. [DOI: 10.1515/zkri-2020-0056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Single crystals of ABW-type CsAlTiO4 (CAT), CsFeTiO4 (CFT), CsGaTiO4 (CGT), and ANA-type CsTi1.1Si1.9O6.5 (CST) were grown and characterized by electron microprobe analyses, single-crystal X-ray diffraction, thermal analyses, and spindle-stage optical investigations to determine the electronic polarizability of 4-coordinated Ti4+, α([4]Ti4+). The crystal structure of CAT was confirmed to crystallize in the highest possible topological symmetry Imma (a = 8.9677(2) Å, b = 5.7322(1) Å, c = 9.9612(3) Å) with tetrahedrally coordinated Al and Ti equally distributed on Wyckoff position 8i. Twinning by reticular merohedry with a twin index of 2 was observed for most of the crystals resulting in a hexagonal twin lattice (a = 11.487(3) Å, c = 8.968(2) Å) with Laue symmetry 6/mmm. Refractive indices measured by immersion methods on an untwinned specimen are n
x = 1.716(5), n
y = 1.725(2), and n
z = 1.727(1) with 2V
z = 127.1(6)°. The diffraction patterns of CFT and CGT clearly showed superstructure reflections causing a symmetry lowering of index 4 with a transformation according to 2a, b, c from Imma to Pmab with a = 18.3054(7) Å, b = 5.8083(2) Å, c = 9.9938(4) Å for CFT, and a = 18.2921(6) Å, b = 5.7636(2) Å, c = 9.9210(3) Å for CGT. Refractive indices for CGT are n
x = 1.750(3), n
y = 1.772(3), and n
z = 1.776(2) with 2V
z = 132(1)°. The crystal structure of the ANA-type CsTi1.1Si1.9O6.5 was confirmed to crystallize in space group Ia
3
¯
$\overline{3}$
d (a = 13.8333(4) Å). The extra 0.5 O atoms are needed for charge compensation and to allow the sum of electronic polarizabilities to give a total electronic polarizability calculated from the refractive index n = 1.718(4). The electronic polarizability of [4]Ti4+ was calculated from the difference between the observed total polarizabilities (derived from the mean refractive indices of CAT and CGT) and the sum of electronic polarizabilities of cations and anions omitting the polarizability of Ti resulting in α([4]Ti4+) = 5.15(5) Å3.
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Affiliation(s)
- Jan Derk Groeneveld
- Universität Bremen, FB 5 Geowissenschaften , Klagenfurter Str. 2 , 28359 Bremen , Germany
| | - Manfred Burianek
- Universität Bremen, FB 5 Geowissenschaften , Klagenfurter Str. 2 , 28359 Bremen , Germany
| | - Johannes Birkenstock
- Universität Bremen, FB 5 Geowissenschaften , Klagenfurter Str. 2 , 28359 Bremen , Germany
| | - Lennart A. Fischer
- Institut für Geo- u. Umweltnaturwissenschaften, Geochemie, Albert-Ludwigs-Universität Freiburg , Albertstraße 23b , 79104 Freiburg , Germany
| | - Robert D. Shannon
- Geological Sciences CIRES, University of Colorado , Boulder , Colorado 80309, USA
| | - Reinhard X. Fischer
- Universität Bremen, FB 5 Geowissenschaften , Klagenfurter Str. 2 , 28359 Bremen , Germany
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Naatz H, Manshian BB, Rios Luci C, Tsikourkitoudi V, Deligiannakis Y, Birkenstock J, Pokhrel S, Mädler L, Soenen SJ. Inside Back Cover: Model‐Based Nanoengineered Pharmacokinetics of Iron‐Doped Copper Oxide for Nanomedical Applications (Angew. Chem. Int. Ed. 5/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.201916183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hendrik Naatz
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Bella B. Manshian
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
| | - Carla Rios Luci
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
| | - Vasiliki Tsikourkitoudi
- University of IoanninaDepartment of Physics Panepistimioupoli Douroutis 445110 Ioannina Greece
| | - Yiannis Deligiannakis
- University of IoanninaDepartment of Physics Panepistimioupoli Douroutis 445110 Ioannina Greece
| | - Johannes Birkenstock
- Central Laboratory for Crystallography and Applied MaterialsUniversity of Bremen 28359 Bremen Germany
| | - Suman Pokhrel
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Lutz Mädler
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Stefaan J. Soenen
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
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5
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Naatz H, Manshian BB, Rios Luci C, Tsikourkitoudi V, Deligiannakis Y, Birkenstock J, Pokhrel S, Mädler L, Soenen SJ. Model-Based Nanoengineered Pharmacokinetics of Iron-Doped Copper Oxide for Nanomedical Applications. Angew Chem Int Ed Engl 2020; 59:1828-1836. [PMID: 31755189 PMCID: PMC7004194 DOI: 10.1002/anie.201912312] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Indexed: 01/18/2023]
Abstract
The progress in nanomedicine (NM) using nanoparticles (NPs) is mainly based on drug carriers for the delivery of classical chemotherapeutics. As low NM delivery rates limit therapeutic efficacy, an entirely different approach was investigated. A homologous series of engineered CuO NPs was designed for dual purposes (carrier and drug) with a direct chemical composition-biological functionality relationship. Model-based dissolution kinetics of CuO NPs in the cellular interior at post-exposure conditions were controlled through Fe-doping for intra/extra cellular Cu2+ and biological outcome. Through controlled ion release and reactions taking place in the cellular interior, tumors could be treated selectively, in vitro and in vivo. Locally administered NPs enabled tumor cells apoptosis and stimulated systemic anti-cancer immune responses. We clearly show therapeutic effects without tumor cells relapse post-treatment with 6 % Fe-doped CuO NPs combined with myeloid-derived suppressor cell silencing.
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Affiliation(s)
- Hendrik Naatz
- University of BremenFaculty of Production EngineeringBadgasteiner Str. 128359BremenGermany
- Leibniz Institute for Materials Engineering IWTBadgasteiner Str. 328359BremenGermany
| | - Bella B. Manshian
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and PathologyBelgium
- Molecular Small Animal Imaging CenterKU LeuvenHerestraat 49B3000LeuvenBelgium
| | - Carla Rios Luci
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and PathologyBelgium
- Molecular Small Animal Imaging CenterKU LeuvenHerestraat 49B3000LeuvenBelgium
| | | | - Yiannis Deligiannakis
- University of IoanninaDepartment of PhysicsPanepistimioupoli Douroutis445110IoanninaGreece
| | - Johannes Birkenstock
- Central Laboratory for Crystallography and Applied MaterialsUniversity of Bremen28359BremenGermany
| | - Suman Pokhrel
- University of BremenFaculty of Production EngineeringBadgasteiner Str. 128359BremenGermany
- Leibniz Institute for Materials Engineering IWTBadgasteiner Str. 328359BremenGermany
| | - Lutz Mädler
- University of BremenFaculty of Production EngineeringBadgasteiner Str. 128359BremenGermany
- Leibniz Institute for Materials Engineering IWTBadgasteiner Str. 328359BremenGermany
| | - Stefaan J. Soenen
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and PathologyBelgium
- Molecular Small Animal Imaging CenterKU LeuvenHerestraat 49B3000LeuvenBelgium
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6
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Naatz H, Manshian BB, Rios Luci C, Tsikourkitoudi V, Deligiannakis Y, Birkenstock J, Pokhrel S, Mädler L, Soenen SJ. Innenrücktitelbild: Model‐Based Nanoengineered Pharmacokinetics of Iron‐Doped Copper Oxide for Nanomedical Applications (Angew. Chem. 5/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hendrik Naatz
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Bella B. Manshian
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
| | - Carla Rios Luci
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
| | - Vasiliki Tsikourkitoudi
- University of IoanninaDepartment of Physics Panepistimioupoli Douroutis 445110 Ioannina Greece
| | - Yiannis Deligiannakis
- University of IoanninaDepartment of Physics Panepistimioupoli Douroutis 445110 Ioannina Greece
| | - Johannes Birkenstock
- Central Laboratory for Crystallography and Applied MaterialsUniversity of Bremen 28359 Bremen Germany
| | - Suman Pokhrel
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Lutz Mädler
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Stefaan J. Soenen
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
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7
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Naatz H, Manshian BB, Rios Luci C, Tsikourkitoudi V, Deligiannakis Y, Birkenstock J, Pokhrel S, Mädler L, Soenen SJ. Model‐Based Nanoengineered Pharmacokinetics of Iron‐Doped Copper Oxide for Nanomedical Applications. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hendrik Naatz
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Bella B. Manshian
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
| | - Carla Rios Luci
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
| | - Vasiliki Tsikourkitoudi
- University of IoanninaDepartment of Physics Panepistimioupoli Douroutis 445110 Ioannina Greece
| | - Yiannis Deligiannakis
- University of IoanninaDepartment of Physics Panepistimioupoli Douroutis 445110 Ioannina Greece
| | - Johannes Birkenstock
- Central Laboratory for Crystallography and Applied MaterialsUniversity of Bremen 28359 Bremen Germany
| | - Suman Pokhrel
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Lutz Mädler
- University of BremenFaculty of Production Engineering Badgasteiner Str. 1 28359 Bremen Germany
- Leibniz Institute for Materials Engineering IWT Badgasteiner Str. 3 28359 Bremen Germany
| | - Stefaan J. Soenen
- NanoHealth and Optical Imaging GroupKU LeuvenDepartment of Imaging and Pathology Belgium
- Molecular Small Animal Imaging CenterKU Leuven Herestraat 49 B3000 Leuven Belgium
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8
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Meierhofer F, Li H, Gockeln M, Kun R, Grieb T, Rosenauer A, Fritsching U, Kiefer J, Birkenstock J, Mädler L, Pokhrel S. Screening Precursor-Solvent Combinations for Li 4Ti 5O 12 Energy Storage Material Using Flame Spray Pyrolysis. ACS Appl Mater Interfaces 2017; 9:37760-37777. [PMID: 28960057 DOI: 10.1021/acsami.7b11435] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The development and industrial application of advanced lithium based energy-storage materials are directly related to the innovative production techniques and the usage of inexpensive precursor materials. Flame spray pyrolysis (FSP) is a promising technique that overcomes the challenges in the production processes such as scalability, process control, material versatility, and cost. In the present study, phase pure anode material Li4Ti5O12 (LTO) was designed using FSP via extensive systematic screening of lithium and titanium precursors dissolved in five different organic solvents. The effect of precursor and solvent parameters such as chemical reactivity, boiling point, and combustion enthalpy on the particle formation either via gas-to-particle (evaporation/nucleation/growth) or via droplet-to-particle (precipitation/incomplete evaporation) is discussed. The presence of carboxylic acid in the precursor solution resulted in pure (>95 mass %) and homogeneous LTO nanoparticles of size 4-9 nm, attributed to two reasons: (1) stabilization of water sensitive metal alkoxides precursor and (2) formation of volatile carboxylates from lithium nitrate evidenced by attenuated total reflection Fourier transform infrared spectroscopy and single droplet combustion experiments. In contrast, the absence of carboxylic acids resulted in larger inhomogeneous crystalline titanium dioxide (TiO2) particles with significant reduction of LTO content as low as ∼34 mass %. In-depth particle characterization was performed using X-ray diffraction with Rietveld refinement, thermogravimetric analysis coupled with differential scanning calorimetry and mass spectrometry, gas adsorption, and vibrational spectroscopy. High-resolution transmission electron microscopy of the LTO product revealed excellent quality of the particles obtained at high temperature. In addition, high rate capability and efficient charge reversibility of LTO nanoparticles demonstrate the vast potential of inexpensive gas-phase synthesis for energy-storage materials.
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Affiliation(s)
- Florian Meierhofer
- Foundation Institute of Materials Science, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
| | - Haipeng Li
- Foundation Institute of Materials Science, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
| | - Michael Gockeln
- Innovative Sensor and Functional Materials Research Group, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
| | - Robert Kun
- Innovative Sensor and Functional Materials Research Group, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials, IFAM , 28359 Bremen, Germany
| | - Tim Grieb
- Institute of Solid State Physics, Electron Microscopy, University of Bremen , 28359 Bremen, Germany
| | - Andreas Rosenauer
- Institute of Solid State Physics, Electron Microscopy, University of Bremen , 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen , 28359 Bremen, Germany
| | - Udo Fritsching
- Foundation Institute of Materials Science, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen , 28359 Bremen, Germany
| | - Johannes Kiefer
- Technische Thermodynamik, University of Bremen , 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen , 28359 Bremen, Germany
| | - Johannes Birkenstock
- Central Laboratory for Crystallography and Applied Materials, University of Bremen , 28359 Bremen, Germany
| | - Lutz Mädler
- Foundation Institute of Materials Science, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
- MAPEX Center for Materials and Processes, University of Bremen , 28359 Bremen, Germany
| | - Suman Pokhrel
- Foundation Institute of Materials Science, Department of Production Engineering, University of Bremen , 28359 Bremen, Germany
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9
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Sommer C, Garbusow M, Jünger E, Pooseh S, Bernhardt N, Birkenstock J, Schad DJ, Jabs B, Glöckler T, Huys QM, Heinz A, Smolka MN, Zimmermann US. Strong seduction: impulsivity and the impact of contextual cues on instrumental behavior in alcohol dependence. Transl Psychiatry 2017; 7:e1183. [PMID: 28763064 PMCID: PMC5611726 DOI: 10.1038/tp.2017.158] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 06/13/2017] [Indexed: 11/16/2022] Open
Abstract
Alcohol-related cues acquire incentive salience through Pavlovian conditioning and then can markedly affect instrumental behavior of alcohol-dependent patients to promote relapse. However, it is unclear whether similar effects occur with alcohol-unrelated cues. We tested 116 early-abstinent alcohol-dependent patients and 91 healthy controls who completed a delay discounting task to assess choice impulsivity, and a Pavlovian-to-instrumental transfer (PIT) paradigm employing both alcohol-unrelated and alcohol-related stimuli. To modify instrumental choice behavior, we tiled the background of the computer screen either with conditioned stimuli (CS) previously generated by pairing abstract pictures with pictures indicating monetary gains or losses, or with pictures displaying alcohol or water beverages. CS paired to money gains and losses affected instrumental choices differently. This PIT effect was significantly more pronounced in patients compared to controls, and the group difference was mainly driven by highly impulsive patients. The PIT effect was particularly strong in trials in which the instrumental stimulus required inhibition of instrumental response behavior and the background CS was associated to monetary gains. Under that condition, patients performed inappropriate approach behavior, contrary to their previously formed behavioral intention. Surprisingly, the effect of alcohol and water pictures as background stimuli resembled that of aversive and appetitive CS, respectively. These findings suggest that positively valenced background CS can provoke dysfunctional instrumental approach behavior in impulsive alcohol-dependent patients. Consequently, in real life they might be easily seduced by environmental cues to engage in actions thwarting their long-term goals. Such behaviors may include, but are not limited to, approaching alcohol.
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Affiliation(s)
- C Sommer
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - M Garbusow
- Department of Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - E Jünger
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - S Pooseh
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - N Bernhardt
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - J Birkenstock
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - D J Schad
- Social and Preventive Medicine, Area of Excellence Cognitive Sciences, University of Potsdam, Potsdam, Germany
| | - B Jabs
- Department of Psychiatry and Psychotherapy, Zentrum für Psychische Gesundheit Weißer Hirsch, Dresden, Germany
| | - T Glöckler
- Department of Psychiatry and Psychotherapy, Zentrum für Psychische Gesundheit Weißer Hirsch, Dresden, Germany
| | - Q M Huys
- Translational Neuromodeling Unit, Hospital of Psychiatry, University of Zürich and Swiss Federal Institute of Technology, Zürich, Switzerland,Psychiatry, Psychosomatics and Psychotherapy, University of Zürich, Zürich, Switzerland
| | - A Heinz
- Department of Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - M N Smolka
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - U S Zimmermann
- Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany,Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Fetscherstraße 74, Dresden 01307, Germany. E-mail:
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Dreyer JAH, Pokhrel S, Birkenstock J, Hevia MG, Schowalter M, Rosenauer A, Urakawa A, Teoh WY, Mädler L. Decrease of the required dopant concentration for δ-Bi2O3crystal stabilization through thermal quenching during single-step flame spray pyrolysis. CrystEngComm 2016. [DOI: 10.1039/c5ce02430g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Birkenstock J, Petříček V, Pedersen B, Schneider H, Fischer RX. The modulated average structure of mullite. Acta Crystallogr B Struct Sci Cryst Eng Mater 2015; 71:358-368. [PMID: 26027012 DOI: 10.1107/s205252061500757x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 04/17/2015] [Indexed: 06/04/2023]
Abstract
Homogeneous and inclusion-free single crystals of 2:1 mullite (Al(4.8)Si(1.2)O(9.6)) grown by the Czochralski technique were examined by X-ray and neutron diffraction methods. The observed diffuse scattering together with the pattern of satellite reflections confirm previously published data and are thus inherent features of the mullite structure. The ideal composition was closely met as confirmed by microprobe analysis (Al(4.82 (3))Si(1.18 (1))O(9.59 (5))) and by average structure refinements. 8 (5) to 20 (13)% of the available Si was found in the T* position of the tetrahedra triclusters. The strong tendencey for disorder in mullite may be understood from considerations of hypothetical superstructures which would have to be n-fivefold with respect to the three-dimensional average unit cell of 2:1 mullite and n-fourfold in case of 3:2 mullite. In any of these the possible arrangements of the vacancies and of the tetrahedral units would inevitably be unfavorable. Three directions of incommensurate modulations were determined: q1 = [0.3137 (2) 0 ½], q2 = [0 0.4021 (5) 0.1834 (2)] and q3 = [0 0.4009 (5) -0.1834 (2)]. The one-dimensional incommensurately modulated crystal structure associated with q1 was refined for the first time using the superspace approach. The modulation is dominated by harmonic occupational modulations of the atoms in the di- and the triclusters of the tetrahedral units in mullite. The modulation amplitudes are small and the harmonic character implies that the modulated structure still represents an average structure in the overall disordered arrangement of the vacancies and of the tetrahedral structural units. In other words, when projecting the local assemblies at the scale of a few tens of average mullite cells into cells determined by either one of the modulation vectors q1, q2 or q3 a weak average modulation results with slightly varying average occupation factors for the tetrahedral units. As a result, the real structure of mullite is locally ordered (as previously known), but on the long-range its average is not completely disordered, the modulated structure of mullite may be denoted the true 'average structure of mullite'.
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Affiliation(s)
- Johannes Birkenstock
- FB5 - Geowissenschaften/Kristallographie, Universität Bremen, Klagenfurter Str., 28359 Bremen, Germany
| | - Václav Petříček
- Department of Structure Analysis, Institute of Physics, Academy of Sciences of the Czech Republic v.v.i., Na Slovance 2, 18221 Praha 8, Czech Republic
| | - Bjoern Pedersen
- Heinz Maier-Leibnitz Zentrum (MLZ) Garching, Technische Universität Muenchen, Lichtenbergstr. 1, Garching, 85748 Bayern, Germany
| | - Hartmut Schneider
- FB5 - Geowissenschaften/Kristallographie, Universität Bremen, Klagenfurter Str., 28359 Bremen, Germany
| | - Reinhard X Fischer
- FB5 - Geowissenschaften/Kristallographie, Universität Bremen, Klagenfurter Str., 28359 Bremen, Germany
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Pokhrel S, Birkenstock J, Dianat A, Zimmermann J, Schowalter M, Rosenauer A, Ciacchi LC, Mädler L. In situ high temperature X-ray diffraction, transmission electron microscopy and theoretical modeling for the formation of WO3 crystallites. CrystEngComm 2015. [DOI: 10.1039/c5ce00526d] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structural transformation of WO3 at high temperatures.
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Affiliation(s)
- Suman Pokhrel
- Foundation Institute of Materials Science (IWT)
- Department of Production Engineering
- University of Bremen
- Germany
| | - Johannes Birkenstock
- Central Laboratory for Crystallography and Applied Materials
- University of Bremen
- Germany
| | - Arezoo Dianat
- Hybrid Materials Interfaces Group
- Department of Production Engineering and Bremen Center for Computational Materials Science
- University of Bremen
- Germany
- Institute for Materials Science
| | - Janina Zimmermann
- Hybrid Materials Interfaces Group
- Department of Production Engineering and Bremen Center for Computational Materials Science
- University of Bremen
- Germany
- Fraunhofer Society Headquarter
| | | | - Andreas Rosenauer
- Institute of Solid State Physics
- University of Bremen
- Germany
- MAPEX Center for Materials and Processes
- University of Bremen
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group
- Department of Production Engineering and Bremen Center for Computational Materials Science
- University of Bremen
- Germany
- MAPEX Center for Materials and Processes
| | - L. Mädler
- Foundation Institute of Materials Science (IWT)
- Department of Production Engineering
- University of Bremen
- Germany
- MAPEX Center for Materials and Processes
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Lührs H, Birkenstock J, Fischer RX. Correction of Beam-Shadowing Effects Due to Partially Filled Sample Holders in Bragg-Brentano Experiments. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fischer RX, Birkenstock J, Petříček V, Pedersen B, Schneider H. Structural examinations of synthetic and natural single crystals of mullite. Acta Crystallogr A 2013. [DOI: 10.1107/s0108767313096141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Birkenstock J, Nénert G, Gesing TM, Burianek M, Mühlberg M, Fischer RX. “Forbidden” reflections in neutron diffraction on bismuth metal oxides: symmetry reduction, λ/2 effect or Umweganregung? Z KRIST-CRYST MATER 2013. [DOI: 10.1524/zkri.2013.1649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Fischer RX, Birkenstock J, Gaede-Köhler A, Schneider H. News on mullite and mullite-type compounds. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311082213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Sonström P, Birkenstock J, Borchert Y, Schilinsky L, Behrend P, Gries K, Müller K, Rosenauer A, Bäumer M. Nanostructured Praseodymium Oxide: Correlation Between Phase Transitions and Catalytic Activity. ChemCatChem 2010. [DOI: 10.1002/cctc.200900311] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Tournier B, Birkenstock J, Pévet P, Vuillez P. Gene expression in the suprachiasmatic nuclei and the photoperiodic time integration. Neuroscience 2009; 160:240-7. [DOI: 10.1016/j.neuroscience.2009.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2008] [Revised: 01/30/2009] [Accepted: 02/02/2009] [Indexed: 10/21/2022]
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