An Inel EQUINOX 3000 X-ray diffractometer with Cu Kα radiation at 40 kV and 100 mA was used to obtain XRD (X-ray diffraction) patterns in the 2θ = 7–60° range with a step size of 0.02°. A Zeiss Sigma VP field emission scanning electron microscope (FE-SEM) was used to acquire SEM (Scanning Electron Microscopy) images and EDX (Energy Dispersive X-ray analysis) maps. The N2 adsorption–desorption isotherms, surface areas and pore volumes were obtained at −196 °C using a Micromeritics instrument after evacuation for 7 h. NH3 temperature-programmed desorption (NH3-TPD) and H2 temperature-programmed reduction (H2-TPR) were carried out on a Micromeritics TPR/TPD 2900 chemisorption analyzer. Inductively coupled plasma-optical emission spectroscopy (ICP-OES) analysis was employed to determine the percentage of metals in the composite using a Varian VISTA-PRO analyzer. A Bruker Vertex80 spectrophotometer was used to record the FTIR (Fourier transform infrared) spectra of the synthesized catalysts in the 400–4000 cm−1 range. UV-Visible Diffuse Reflectance Spectra (UV-Vis DRS) analysis of synthesized sample was recorded on Shimadzu UV-2600i spectrophotometer at room temperature and ambient atmosphere. Since its wavelength range can easily be expanded to the near-infrared region of 1400 nm using the optional integrating sphere the wavelength was set in the absorption range of 190 to 1100.
Vertex80 spectrophotometer
Manufactured by Bruker
The Vertex80 spectrophotometer is a high-performance instrument designed for a wide range of analytical applications. It features advanced optical components and a robust design to ensure reliable and accurate measurements. The Vertex80 is capable of performing various spectroscopic techniques, including absorption, transmission, and reflectance, across a wide wavelength range.
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Lab products found in correlation
Uv 2600i spectrophotometer, by Shimadzu (1 mentions)
Sigma vp field emission scanning electron microscope fe sem, by Zeiss (1 mentions)
Lambda 2s uv vis spectrophotometer, by PerkinElmer (1 mentions)
Jem 1400, by JEOL (1 mentions)
Miniflex 600, by Rigaku (1 mentions)
Su6600 fesem, by Hitachi (1 mentions)
D8 focus powder x ray diffractometer, by Bruker (1 mentions)
5977a series gc msd system, by Agilent Technologies (1 mentions)
3 protocols using vertex80 spectrophotometer
1
Characterization of Catalysts by Advanced Techniques
2
Structural and Optical Analysis of Samples
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The structural analysis of the samples was studied using the Rigaku Mini Flex 600 X-ray diffractometer (λ = 1.5406 Å) using Ni-filtered Cu Kα radiation. Fourier Transform Infrared (FT-IR) spectra were recorded on a Bruker-vertex80 spectrophotometer in KBr pellets. The optical properties of the samples were investigated using a PerkinElmer Lambda 2S UV–Vis Spectrophotometer in the wavelength range of 190–1100 nm. The morphology of the samples was studied by JEM 1400 (JEOL, Japan).
3
Characterization of Synthesized Nanoparticles
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The synthesized nanoparticles were analysed using Fourier transform infrared (FTIR) spectroscopy using a Bruker Vertex80 spectrophotometer in the wavenumber range 400 and 4000 cm−1. Samples were prepared in the form of pellets using KBr, maintaining the KBr : sample mass ratio at 1 : 10. Scanning electron microscopy (SEM) images and surface elemental analysis of AMNPs and AuPd@AMNPs was conducted using a Hitachi SU6600 FE-SEM. X-ray diffraction analysis of the synthesized AMNPs and AuPd@AMNPs was performed using a Bruker D8 Focus X-ray powder diffractometer using Cu Kα radiation (=0.154 nm) over the 2θ range of 5°–80°, with a step size of 0.02° and a step time of 1 s. Elemental analysis of AMNPs and AuPd@AMNPs was done using inductively coupled plasma mass spectrometry (ICPMS) using the Agilent 7000 ICPMS System. Samples: 25.0 mg were digested in H2O2 followed by dissolution in a mixture of HCl and HNO3, the final volume was made up to 10.0 ml. The products of catalytic reactions were characterized by GC–MS using Agilent 5977A Series GC/MSD System having a 30 m × 250 µm × 0.25 µm HP-5 ms column. The temperature programme was 40–250°C at 30°C min−1 with a final temperature isothermal hold for 12 min. The MS mass limit was set between 50 and 450 Da.
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