Results 41 to 50 of about 141,354 (295)

Controlling the optical properties of nanostructured oxide-based polymer films

Scientific Reports, 2021
A bulk scale process is implemented for the production of nanostructured film composites comprising unary or multi-component metal oxide nanoparticles dispersed in a suitable polymer matrix.
N. C. Angastiniotis, S. Christopoulos, K. C. Petallidou, A. M. Efstathiou, A. Othonos, L. Koutsokeras   +5 more
doaj   +1 more source

Transfer hydrogenation of methyl levulinate with methanol to gamma valerolactone over Cu-ZrO2: A sustainable approach to liquid fuels

Catalysis Communications, 2022
Cu-ZrO2 is demonstrated to be a highly effective catalyst for the transfer hydrogenation of methyl levulinate to γ-valerolactone, using methanol as the hydrogen donor.
Mark Douthwaite, Bin Zhang, Sarwat Iqbal, Peter J. Miedziak, Jonathan K. Bartley, David J. Willock, Graham J. Hutchings   +6 more
doaj   +1 more source

Ethene dimerization on zeolite-hosted Ni ions : reversible mobilization of the active site [PDF]

, 2019
The active site in ethene oligomerization catalyzed by Ni-zeolites is proposed to be a mobile Ni(II) complex, based on density functional theory-based molecular dynamics (DFT-MD) simulations corroborated by continuous-flow experiments on Ni-SSZ-24 ...
Botan, Alexandru, Brogaard, Rasmus Yding, De Wispelaere, Kristof, Dyballa, Michael Martin, Kømurcu, Mustafa, Olsbye, Unni, Van Speybroeck, Veronique   +6 more
core   +3 more sources

Zeolite-β based molecular sieves: A potential catalyst for esterification of biomass derived model compound levulinic acid

Materials Science for Energy Technologies, 2021
A series of hetero ions (iron, boron, gallium, titanium, and zinc [Fe3+, B3+, Ga3+, Ti4+, and Zn2+, respectively) incorporated zeolite-β is prepared via a simple hydrothermal method within 48 h at 170 °C.
Preeti Sahu, Ayyamperumal Sakthivel
doaj   +1 more source

Recycling Of Carbone Oxides (Co, Co2) Conversion Into Methanol At Atmospheric Pressure Over Mechanochemical Achtivated Cuo-zno-al2o3 Catalyst [PDF]

, 2016
The catalytic process for methanol production by synthesis gas conversion under the conditions of mechanochemical activation (MCA) of copper-zinc-aluminum oxide catalyst in the temperature range 160–280 °C at a pressure of 0.1 MPa are investigated.
Khimach, N. (Nataliia), Polunkin, I. (Ievgen), Yevdokymenko, V. (Vitaly)   +2 more
core   +2 more sources

Heterogeneous Pd catalysts as emulsifiers in Pickering emulsions for integrated multistep synthesis in flow chemistry [PDF]

, 2018
Within the “Compartmentalised Smart Factory” approach of the ONE-FLOW project the implementation of different catalysts in “compartments” provided by Pickering emulsions and their application in continuous flow is targeted.
Binks, Bernard P., Gonzales-Groom, Renie, Gruber-Woelfler, Heidrun, Hiebler, Katharina, Lichtenegger, Georg J., Maier, Manuel C., Park, Eun Sung   +6 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Iron‑chromium mixed metal oxides catalyse the oxidative dehydrogenation of propane using carbon dioxide

Catalysis Communications, 2022
The oxidative dehydrogenation of propane to propene using carbon dioxide is an attractive novel synthesis route to produce a key platform chemical. We investigated iron-chromia catalysts prepared by sol-gel.
Tongqi Ye, James H. Carter, Bao Chen, Xin Li, Yuewen Ye, Stuart H. Taylor, Graham J. Hutchings   +6 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Ni–Ru-containing mixed oxide-based composites as precursors for ethanol steam reforming catalysts: Effect of the synthesis methods on the structural and catalytic properties

Open Chemistry, 2021
Ethanol steam reforming catalyst’s precursors, i.e., nanocomposites of complex oxides with the general formula [Pr0.15Sm0.15Ce0.35Zr0.35O2 + LaMn0.45Ni0.45Ru0.1O3] (1:1 by mass), were synthesized by three different methods.
Naurzkulova Symbat Muratbekovna, Arapova Marina Vasilievna, Ishchenko Arcady Vladimirovich, Krieger Tamara Andreevna, Saraev Andrei Aleksandrovich, Kaichev Vasilii Vasilievich, Rogov Vladimir Alekseevich, Krasnov Aleksei Vyacheslavovich, Massalimova Bakytgul Kabykenovna, Sadykov Vladislav Aleksandrovich   +9 more
doaj   +1 more source