WebThe X-ray diffraction (XRD) patterns of the sample were obtained with a RIGAKU SmartLab diffractometer using Cu Kα radiation. Nitrogen adsorption–desorption isotherms were recorded on a Micromeritics ASAP 2024M apparatus at the temperature of liquid nitrogen (−196 °C). Samples were degassed at 300 °C for 8 h prior to the measurements.

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Webdesorption isotherms with a Micromeritics ASAP 2024M apparatus. Photoluminescence (PL) spectra were characterized on a HORIBA Fluorolog-3 fluorescence spectrometer. The electron paramagnetic resonance (EPR) signal spin-trapped by reagent 5,5-dimethyl-L-pyrroline N-oxide (DMPO) was obtained with a Bruker EMXPlus-10/12 EPR WebThe BET surface area measurement was carried out using a Micrometrics ASAP 2024M apparatus at 77 K. Prior to the measurement, the sample was degassed at 300 °C for 5 h under vacuum. Temperature-programmed reduction (FINESORB3010E, Zhejiang Fintec Co.) was performed to determine the nickel species and its reducibility for each catalyst. 頭痛 原因 むちうち

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Web21 ago 2013 · Nitrogen adsorption/desorption analysis was measured using a Micromeritics ASAP 2024M apparatus. Before the measurement, the samples were heated at 403 K for 10 h. The hydrogen adsorption measurement (volumetric method) was measured at 77 K under 1 bar pressure using the same gas sorption apparatus. 3. Results and discussion WebINSTALLTHEANALYZER Suppliedpartnumbers: Flextube,12in. 004-25626-02 Flextube,60in. 004-25626-09 NW-16tee 004-25430-06 NW-40tee 004-25430-08 … WebConventional supported Pt catalysts have often been prepared by loading Pt onto commercial supports, such as SiO2, TiO2, Al2O3, and carbon. These catalysts usually have simple metal-support (i.e., Pt-SiO2) interfaces. To tune the catalytic performance of supported Pt catalysts, it is desirable to modify the metal-support interfaces by … 頭痛 右側こめかみ 対処法