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Sta 409 pc pg instrument

Manufactured by Netzsch

The STA 409 PC/PG is a simultaneous thermal analysis (STA) instrument manufactured by Netzsch. The core function of the STA 409 PC/PG is to perform thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) measurements on various materials in a controlled atmosphere.

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3 protocols using sta 409 pc pg instrument

1

Comprehensive Characterization of Cu-MOF

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NMR (nuclear magnetic resonance)
data (13C and 1H) were assembled on a Bruker
DPX 500 MHz apparatus in DMSO-d6 solution,
and the chemical shifts were accounted to the internal standard TMS
(0 ppm). FTIR (Fourier transform infrared spectroscopy) spectra were
confirmed on an Agilent Technologies 41630 apparatus. The elemental
analysis was obtained on a Vario EL cube. PXRD (powder X-ray powder
diffraction) peaks were verified using a Cu Kα radiation source
on a D8 advanced Bruker-Powder-Diffractometer. The SEM (scanning electron
microscopy) measurements were performed on a JSM740 Scanning Electron
Microscope. A NETZSCH STA 409 PC/PG instrument was employed for recording
TGA (thermogravimetric analyses) under a N2 environment
with a heating rate of 10 °C/min. Pore size and BET surface measurements
were done at 77 K with N2 sorption isotherms on the Micromeritics
ASAP 2020 apparatus. Prior to the analysis, the prepared Cu-MOF effectively
degassed overnight at a temperature of 150 °C as well.
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2

Characterization of Solid ZIF-8 Adsorbents

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The adsorbents (solid ZIF-8) were characterized by XRD (SIMADU XRD 6000) with Cu Kα radiation (0.1542, nm, 40 kV and 400 mA) at a scanning rate of 2 °C per minute. The morphologies and energy dispersive X-ray spectroscopy measurements were obtained using a FEI Quanta 200F scanning electron microscope. Fourier transform infrared spectra were obtained using a Bruker 80v spectrometer. Fourier transform Raman spectra were obtained using a HORIBA XploRA spectrometer. The thermogravimetric measurements were carried out at a NETZSCH STA 409 PC/PG instrument.
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3

Electrospun Zinc Oxide Nanofibers with Palladium Modification

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Nanocrystalline fibers of unmodified (ZnO) and Pd-modified (ZnO/Pd, 1 wt.%) zinc oxide were synthesized by electrospinning of the polymer solution followed by heat treatment to remove the polymer and crystallize the semiconductor material. Annealing conditions for polymer decomposition were determined by thermogravimetric analysis with mass spectral determination of gaseous products (TG-MS) using a NETZSCH STA 409 PC/PG instrument.
Zinc acetate Zn(CH3COO)2·2H2O and palladium acetylacetonate (Pd(acac)2, Pd(CH3COCHCOCH3)2) served as a source of zinc and palladium, respectively. When preparing a polymer solution, 200 mg of zinc acetate were dissolved in 10 mL of a mixed solvent consisting of 2-methoxyethanol and isopropanol (1:1). After complete dissolution of zinc acetate, 900 mg of polyvinylpyrrolidone (PVP) were added and the mixture was vigorously stirred for 5 h at 40 °C. Electrospinning proceeded at a solution feed rate of 1 mL/h at a distance of 125 mm and a voltage of 12 kV between the needle and the metal collector. The resulting polymer nanofibers were collected and annealed in air at 550 °C for 5 h (heating rate of 1 K/min). Palladium modified ZnO nanofibers were obtained by a similar method, after adding palladium precursor to the initial polymer solution.
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