نتایج جستجو برای: la2o3 co3o4 zro2

تعداد نتایج: 4886  

Journal: :Molecular Catalysis 2021

Hydrogen production from dry reforming of methane (DRM) over chief Ni-based catalyst is cutting edge research area due to environmental consciousness about reducing global warming gases (CH4 and CO2) greener route synthesis. Herein, ceria promoted lanthanum-zirconia supported Ni system (5NixCe/LaZr; x = 0, 1, 1.5, 2, 2.5, 3, 5 wt.%) prepared by the wet impregnation method. It further characteri...

2009
Stefano Frangini

The Lux-Flood basicity of La2O3-containing alkali molten carbonate mixtures has been quantitatively estimated by a gas solubility method based on the use of acidic gaseous O2 for the titration of the oxide concentration in the melt. The amount of gaseous oxygen dissolved in the melt in form of peroxide ion has been taken as a quantitative probe for the carbonate basicity. Results demonstrate th...

2016
Lei Dai Qing Qin Xiaojing Zhao Chaofa Xu Chengyi Hu Shiguang Mo Yu Olivia Wang Shuichao Lin Zichao Tang Nanfeng Zheng

Electrochemical partial reforming of organics provides an alternative strategy to produce valuable organic compounds while generating H2 under mild conditions. In this work, highly selective electrochemical reforming of ethanol into ethyl acetate is successfully achieved by using ultrathin Co3O4 nanosheets with exposed (111) facets as an anode catalyst. Those nanosheets were synthesized by a on...

2017
Zhiping Zhang Weikang Sun Hongfei Liu Guanhua Xie Xiaobing Chen Xianghua Zeng

Zr2WP2O12/ZrO2 composites were fabricated by solid state reaction with the goal of tailoring the thermal expansion coefficient. XRD, SEM and TMA were used to investigate the composition, microstructure, and thermal expansion behavior of Zr2WP2O12/ZrO2 composites with different mass ratio. Relative densities of all the resulting Zr2WP2O12/ZrO2 samples were also tested by Archimedes' methods. The...

2016
Shahid Ali Khan Sher Bahadar Khan Abdullah M. Asiri Ikram Ahmad

Coumarins play an important role in drug development with diverse biological applications. Herein, we present the synthesis of coumarin through Pechmann reaction by using zirconia-based heterogeneous catalysts (ZrO2-TiO2, ZrO2-ZnO, and ZrO2/cellulose) in a solvent-free condition at room temperature. ZrO2-TiO2, ZrO2-ZnO, and ZrO2/cellulose were identified through spectroscopic techniques such as...

Journal: :Processes 2023

To improve the wear resistance of TMR blade and investigate effect nano-La2O3 Mo on laser cladding coating. 65Mn as substrate, La2O3, Mo-La2O3 composite powders were added into Ni60a/SiC powder. Using scanning electron microscopy, X-ray diffraction, photoelectron spectroscopy CFT-I surface synthesizer, phase composition, element distribution friction properties coating analyzed to obtain best c...

2018
Dominik Seeburg Dongjing Liu Joerg Radnik Hanan Atia Matthias Schneider Andreas Martin Sebastian Wohlrab

Fe2O3, Co3O4 and NiO nanoparticles were prepared via a citrate method and further functionalized with Pd by impregnation. The pure oxides as well as Pd/Fe2O3, Pd/Co3O4, and Pd/NiO (1, 5 and 10 wt % Pd) were employed for catalytic methane combustion under methane lean (1 vol %)/oxygen rich (18 vol %, balanced with nitrogen) conditions. Already, the pure metal oxides showed a high catalytic activ...

Journal: :Analytical chemistry 2000
J Zhao P W Carr

The chromatographic selectivities of polystyrene-coated zirconia (PS-ZrO2) have been investigated in detail by means of homologue series retention studies and studies of a variety of nonpolar aromatic positional isomers. This material has been compared to polybutadiene-coated zirconia, octadecyl- and phenyl-bonded silica, and polymer-based reversed phases. In addition, the separations of a wide...

Journal: :Nanoscale 2014
Wei Wen Jin-Ming Wu Min-Hua Cao

A facile strategy is developed for mass fabrication of porous Co3O4 networks via the thermal decomposition of an amorphous cobalt-based complex. At a low mass loading, the achieved porous Co3O4 network exhibits excellent performance for lithium storage, which has a high capacity of 587 mA h g(-1) after 500 cycles at a current density of 1000 mA g(-1).

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید