Výsledky vyhledávání - "David S, Wragg"

Akademický článek

Dynamic In‐Plane Heterogeneous and Inverted Response of Graphite to Fast Charging and Discharging Conditions in Lithium‐Ion Pouch Cells

Autor: Abigale P. Monasterial, Peter J. Weddle, Kristen Atkinson, David S. Wragg, Andrew M. Colclasure, Francois L. E. Usseglio-Viretta, Natalie Seitzman, Jun-Sang Park, Jonathan Almer, Kandler Smith, Donal P. Finegan

Publikováno v: Small Science, Vol 3, Iss 7, Pp n/a-n/a (2023)

Solutions for improving fast charging of lithium‐ion batteries have largely focused on alleviating through‐plane lithiation gradients while little is understood about in‐plane heterogeneities and how to resolve them. Herein, high‐speed synchr

Externí odkaz: https://doaj.org/article/077e2dbc34cf4f00a11ca9ab31c30691

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Akademický článek

Sunlight-Driven Photocatalytic Degradation of Methylene Blue with Facile One-Step Synthesized Cu-Cu2O-Cu3N Nanoparticle Mixtures

Autor: Patricio Paredes, Erwan Rauwel, David S. Wragg, Laetitia Rapenne, Elias Estephan, Olga Volobujeva, Protima Rauwel

Publikováno v: Nanomaterials, Vol 13, Iss 8, p 1311 (2023)

Sunlight-driven photocatalytic degradation is an effective and eco-friendly technology for the removal of organic pollutants from contaminated water. Herein, we describe the one-step synthesis of Cu-Cu2O-Cu3N nanoparticle mixtures using a novel non-a

Externí odkaz: https://doaj.org/article/270417a360604d4089a61f2b77bbefd6

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Real-time regeneration of a working zeolite monitored via operando X-ray diffraction and crystallographic imaging: how coke flees the MFI framework

Autor: Georgios N. Kalantzopoulos, Daniel Rojo Gama, Dimitrios K. Pappas, Iurii Dovgaliuk, Unni Olsbye, Pablo Beato, Lars F. Lundegaard, David S. Wragg, Stian Svelle

Publikováno v: Dalton Transactions. 51:16845-16851

We have monitored the regeneration of H-ZSM-5 via operando time-resolved powder X-Ray diffraction (PXRD) coupled with mass spectroscopy (MS). Parametric Rietveld refinements and calculation of the extra-framework electronic density by differential Fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e96eccc9564664136aacc7c26d566f8
https://doi.org/10.1039/d2dt02845j

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Structural properties of mixed conductor Ba1−xGd1−yLax+yCo2O6−δ

Autor: Ragnar Strandbakke, David S. Wragg, Magnus H. Sørby, Matylda N. Guzik, Anette E. Gunnæs, Iga Szpunar, Sebastian Lech Wachowski, María Balaguer, Patricia A. Carvalho, Aleksandra Mielewczyk-Gryń, Jose M. Serra, Truls Norby

Publikováno v: 18667-18677
Dalton Transactions

BaGdLaCoO (BGLC) compositions with large compositional ranges of Ba, Gd, and La have been characterised with respect to phase compositions, structure, and thermal and chemical expansion. The results show a system with large compositional flexibility,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::485d1811a1fc91855133b757577edf61
https://doi.org/10.1039/d2dt02277j

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Akademický článek

Understanding the Deactivation Phenomena of Small-Pore Mo/H-SSZ-13 during Methane Dehydroaromatisation

Autor: Miren Agote-Arán, Anna B. Kroner, David S. Wragg, Wojciech A. Sławiński, Martha Briceno, Husn U. Islam, Igor V. Sazanovich, María E. Rivas, Andrew W. J. Smith, Paul Collier, Inés Lezcano-González, Andrew M. Beale

Publikováno v: Molecules, Vol 25, Iss 21, p 5048 (2020)

Small pore zeolites have shown great potential in a number of catalytic reactions. While Mo-containing medium pore zeolites have been widely studied for methane dehydroaromatisation (MDA), the use of small pore supports has drawn limited attention du

Externí odkaz: https://doaj.org/article/e9b03d6fc5eb44a7ad16bc406fd009e2

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The Reactivity of Multidentate Schiff Base Ligands Derived from Bi‐ and Terphenyl Polyamines towards M(II) (M=Ni, Cu, Zn, Cd) and M(III) (M=Co, Y, Lu)

Autor: David S. Wragg, Isabelle Gerz, Knut Tormodssønn Hylland, Sigurd Øien-Ødegaard, Mats Tilset

Publikováno v: European Journal of Inorganic Chemistry. 2021:1869-1889

Multidentate Schiff base ligands derived from a selection of biphenyl- and terphenyl polyamines were synthesized, and their reactivity towards divalent (Ni, Cu, Zn, Cd) and trivalent (Co, Y, Lu) metals was studied by single-crystal X-ray diffraction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2803cfd0890315bf8b723555b639862d
https://doi.org/10.1002/ejic.202100170

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Cu-catalyzed C(sp2)–N-bond coupling of boronic acids and cyclic imides

Autor: Linn Neerbye Berntsen, Kristian Sørnes, Alexander Harald Sandtorv, David S. Wragg, Thomas Nordbø Solvi

Publikováno v: Chemical Communications. 57:11851-11854

A general Cu-catalyzed strategy for coupling cyclic imides and alkenylboronic acids by forming C(sp2)-N-bonds is reported. The method enables the practical and mild preparation of (E)-enimides. A large range of cyclic imides are allowed, and di- and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::433e31b6833f2476aba1fa651dda5cc7
https://doi.org/10.1039/d1cc04356k

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Mapping the coke formation within a zeolite catalyst extrudate in space and time by operando computed X-ray diffraction tomography

Autor: Irene Pinilla-Herrero, Lars F. Lundegaard, Evgeniy Redekop, Georgios N. Kalantzopoulos, Dimitrios K. Pappas, Marco Di Michiel, Stian Svelle, Daniel Rojo-Gama, Pablo Beato, David S. Wragg

Publikováno v: 'Journal of Catalysis ', vol: 401, pages: 1-6 (2021)

We have used operando X-ray diffraction computed tomography (XRD-CT) analysed by rigorous crystallographic methods to reveal the behaviour of a zeolite/alumina based catalyst extrudate in the methanol-to-hydrocarbon reaction under working conditions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d5c25bc686e745a1483d652d0963b8c
https://epn-library.esrf.fr/flora/jsp/index_view_direct_anonymous.jsp?record=doc:PUB_ESRF:57962

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Synthesis of substituted (N,C) and (N,C,C) Au(iii) complexes: the influence of sterics and electronics on cyclometalation reactions

Autor: Knut T. Hylland, Inga L. Schmidtke, David S. Wragg, Ainara Nova, Mats Tilset

Cyclometalated Au(III) complexes are of interest due to their catalytic, medicinal, and photophysical properties. Herein, we describe the synthesis of derivatives of the type (N,C)Au(OAcF)2 (OAcF = trifluoroacetate) and (N,C,C)AuOAcF by a cyclometala

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5d4f58d59d1bab42ccc77c01d40a1e1
https://hdl.handle.net/10037/25971

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Synthesis and Evaluation of K-Promoted Co3-xMgxAl-Oxides as Solid CO2 Sorbents in the Sorption-Enhanced Water−Gas Shift (SEWGS) Reaction

Autor: Anja Olafsen Sjåstad, Helmer Fjellvåg, David S. Wragg, Silje Fosse Håkonsen, Paul Cobden, Georgios N. Kalantzopoulos, Fredrik Lundvall, Bjørnar Arstad, Joanna Pierchala, Richard Blom

Publikováno v: 'Industrial & Engineering Chemistry Research ', vol: 59, pages: 17837-17844 (2020)
17837-17844
Industrial & Engineering Chemistry Research

Hydrogen is essential in a variety of large-scale chemical processes. As a carbon-free energy carrier, hydrogen has a potential for wide use within power production and transportation. However, most of the recent production methods involve the releas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::845f25029f1dabf4315ba62a405bf8aa
https://doi.org/10.1021/acs.iecr.0c02322

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