Results 1 to 10 of about 95,715 (219)
Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts
Nanomaterials, 2022 Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence
Ekaterina Smal +10 more
doaj +1 more source
Kinetic Regularities of Methane Dry Reforming Reaction on Nickel-Containing Modified Ceria–Zirconia
Energies, 2021 The Ni-containing catalysts based on ceria–zirconia doped with Ti and Ti+Nb were prepared by the solvothermal method in supercritical fluids. Ni deposition was carried out by incipient wetness impregnation and the one-pot technique.
Valeria Fedorova +9 more
doaj +1 more source
Hydrogenation of different carbon substrates into light hydrocarbons by ball milling
Nature Communications, 2023 The conversion of carbon-based solids, like non-recyclable plastics, biomass, and coal, into small molecules appears attractive from different points of view. However, the strong carbon–carbon bonds in these substances pose a severe obstacle, and thus—if
Linfeng Li +5 more
doaj +1 more source
Mitochondrial Heterogeneity [PDF]
Frontiers in Genetics, 2019 Cell-to-cell heterogeneity drives a range of (patho)physiologically important phenomena, such as cell fate and chemotherapeutic resistance. The role of metabolism, and particularly mitochondria, is increasingly being recognised as an important explanatory factor in cell-to-cell heterogeneity.
Juvid Aryaman +6 more
openaire +6 more sources
Energies, 2021 This review considers problems related to design of efficient structured catalysts for natural gas and biofuels transformation into syngas. Their active components are comprised of fluorite, perovskite and spinel oxides or their nanocomposites (both bulk
Vladislav Sadykov +3 more
doaj +1 more source
A Dual-Band Dual-Polarized Base Station Antenna Array With Isolation Enhancement
IEEE Open Journal of Antennas and Propagation, 2023 In this paper, a dual-band dual-polarized antenna with isolation enhancement is designed. The proposed antenna operates in the frequency range of 3.4–3.6 GHz and 4.8-5 GHz, where the center frequency of the high band (HB) is 1.4 times that of the ...
Lei Ge +4 more
doaj +1 more source
Novel Ni/Ce(Ti)ZrO2 Catalysts for Methane Dry Reforming Prepared in Supercritical Alcohol Media
Energies, 2020 To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria–zirconia doped by Ti were investigated as supports.
Yuliya Bespalko +9 more
doaj +1 more source
Photonics, 2023 This study experimentally demonstrates two types of ultra-broadband metamaterial absorbers with high performance in the visible-to-near-infrared range by using different anti-reflection coatings (i.e., SiO2 and Si3N4) and a multi-subcell Ti-SiO2-Ti ...
Dongqing Wu +4 more
doaj +1 more source
Heterogeneous Agglomeration [PDF]
Review of Economics and Statistics, 2017 Many prior treatments of agglomeration explicitly or implicitly assume that all industries agglomerate for the same reasons. This paper uses UK establishment-level coagglomeration data to document substantial heterogeneity across industries in the microfoundations of agglomeration economies.
Faggio, Giulia +2 more
openaire +6 more sources
Heterogeneous convergence [PDF]
Economics Letters, 2007 We use US county-level data to estimate convergence rates for 22 individual states. We find significant heterogeneity. E.g., the California estimate is 19.9% and the New York estimate is 3.3%. Convergence rates are essentially uncorrelated with income levels.
Young, Andrew +2 more
openaire +11 more sources