Results 1 to 10 of about 52,226 (161)

Nickel-Containing Ceria-Zirconia Doped with Ti and Nb. Effect of Support Composition and Preparation Method on Catalytic Activity in Methane Dry Reforming [PDF]

Nanomaterials, 2020
Nickel-containing mixed ceria-zirconia oxides also doped by Nb and Ti have been prepared by a citrate route and by original solvothermal continuous flow synthesis in supercritical alcohols.
Mikhail Simonov, Yulia Bespalko, Ekaterina Smal, Konstantin Valeev, Valeria Fedorova, Tamara Krieger, Vladislav Sadykov   +6 more
doaj   +2 more sources

Pengaruh Suhu Sintesis Katalis Partikel Ceria Zirconia terhadap Efektivitas Proses Delignifikasi [PDF]

Jurnal Teknik Kimia dan Lingkungan, 2020
Biomass is organic material produced through photosynthetic processes. The presence of lignin on the cell wall will inhibit cellulose to be converted into products. Delignification will open the lignocellulose structure to make cellulose more accessible.
Okky Putri Prastuti, Fandi Angga Prasetya, Ufafa Anggarini, Rifqi Putera Herwoto, Hesty Rahayu   +4 more
doaj   +2 more sources

High-Efficiency CO₂ Electrolysis Enabled by Interface-Engineered Composite Electrolytes in Ni-Based SOEC. [PDF]

Adv Sci (Weinh)
This study addresses the critical issue of delamination between YSZ and GDC electrolytes in SOECs, which is caused by Thermal deformation disparity. A novel YSZ‐GDC composite interlayer, fabricated using a simple dip‐coating method, is introduced to solve this problem. This layer effectively suppresses delamination by mitigating thermal stress.
Yuldashev R, Jung H, Park JH, Lee JH, Kim MC.   +4 more
europepmc   +2 more sources

Hole Polaronic Confinement in (111) Yttria-Stabilised Zirconia. [PDF]

Small
Ultrathin epitaxial YSZ(111) films unexpectedly develop p‐type mixed conduction and amplified electromechanical coupling under oxidizing conditions. Combined transport measurements and first‐principles modeling reveal that nanoscale confinement and ordered dopant–vacancy complexes stabilize localized O 2p hole polarons at the surface. A canonical ionic
Vasiljevic M, Buratto Tinti V, Zamudio-García J, Castillo Robles JM, Bilalis V, Asghar I, Santucci S, Wu Y, Sanna S, Aruta C, Orgiani P, Koukoulis D, Marrero-López D, Wang W, Castelli IE, Esposito V.   +15 more
europepmc   +2 more sources

Co₃O₄/CeO₂ and Co₃O₄/ZrO₂ Composites as Heterogeneous Catalysts for Selective Aerobic Oxidation of Vanillyl Alcohol. [PDF]

ChemistryOpen
This work compares binary metal oxides of Co3O4/CeO2 and Co3O4/ZrO2 to elucidate the structure–activity relationship on the selective oxidation of vanillyl alcohol to vanillin, highlighting the Co3O4/CeO2 system that enables high efficiency and selectivity under mild, green reaction conditions.
Abeyrathna HT, Thibiripalage CLF, Zhu HY, Jin Y, Micallef A, Waclawik ER.   +5 more
europepmc   +2 more sources

Effect of Laser Treatment on the Surface Roughness of Multilayer Plasma Sprayed Thermal Barrier Coating System [PDF]

Engineering and Technology Journal, 2021
Thermal barrier coatings (TBCs) are used in advanced engines working at higher temperatures. Higher efficiency and performance of gas turbine engines will require careful selection of TBCs.
Mais A. Habeeb, Mohammed J. Kadhim, Fadhil A. Hashim, Maryam A. bash   +3 more
doaj   +1 more source

Hydrothermal Synthesis: Low−Temperature Subcritical Water for Ceria−Zirconia Mixed Oxides Preparation

Indonesian Journal of Chemistry, 2021
A low-temperature hydrothermal synthesis technique was employed as a medium to produce ceria−zirconia mixed oxides particles at temperatures of 200–300 °C and pressure of 10 MPa in a batch process.
Siti Machmudah, Widiyastuti Widiyastuti, Wahyudiono Wahyudiono, Sugeng Winardi, Hideki Kanda, Motonobu Goto   +5 more
doaj   +1 more source

Supported Ce/Zr pyrochlore monolayers as a route to single cerium atom catalysts with low temperature reducibility

iScience, 2023
Summary: The combination of structural characterization at atomic resolution, chemical data, and theoretical insights has revealed the unique nanostructures which develop in ceria supported on yttria-stabilized zirconia (YSZ) after being submitted to ...
Jose M. Montes-Monroy, Ramón Manzorro, Lidia E. Chinchilla, William E. Celín, Jose J. Calvino, Jose A. Pérez-Omil   +5 more
doaj   +1 more source

Investigating the reaction mechanism of dimethyl carbonate synthesis through isotopic labeling experiments

Catalysis Communications, 2023
The synthesis of dimethyl carbonate (DMC) from carbon dioxide and methanol was studied over a ceria- zirconia mixed metal oxide. When using oxygen-18 labeled ceria-zirconia, no oxygen-18 labeled DMC or water was observed.
Cécile Daniel, David Farrusseng, Yves Schuurman   +2 more
doaj   +1 more source

Microstructure and Phases Analysis for Advanced Plasma Sprayed Zirconia-Ceria-Yttria Thermal Barrier Coating [PDF]

Engineering and Technology Journal, 2017
Thoroughly qualitative and quantitative topography, microstructure, splats formation and phases evaluation were made to understand carefully the behavior of plasma sprayed zirconia-ceria-yttria coatings processed under near optimum processing conditions.
M.J. Kadhim, M.H. Hafiz, M.A. Ali bash
doaj   +1 more source