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41 protocols using asap 2020m

1

Characterization of Activated Carbons

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The N2 adsorption–desorption isotherms of the carbon precursor and activated carbons were measured on an automatic adsorption instrument (ASAP 2020M, Micromeritics, Norcross, GA, USA) at 77 K [20 (link)]. The specific surface areas of the specimens were calculated by the BET equation, assuming the nitrogen molecule area of 0.162 nm2. The total pore volume was estimated as liquid volume of the adsorbate adsorbed at P/Po = 0.99 [21 (link)]. The average pore sizes were estimated by 4 V/A, where V is total pore volume and A is BET surface area. The micropore volume was determined by means of the t-Plot method. The pore size distributions were obtained by the BJH method [22 (link)].
The N2 adsorption–desorption isotherms of the carbon precursor and activated carbons were measured on an automatic adsorption instrument (ASAP 2020M, Micromeritics, Norcross, GA, USA) at 77 K [20 (link)]. The specific surface areas of the specimens were calculated by the BET equation, assuming the nitrogen molecule area of 0.162 nm2. The total pore volume was estimated as liquid volume of the adsorbate adsorbed at P/Po = 0.99 [21 (link)]. The average pore sizes were estimated by 4 V/A, where V is total pore volume and A is BET surface area. The micropore volume was determined by means of the t-Plot method. The pore size distributions were obtained by the BJH method [22 (link)].
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2

Characterization of Porous Material Properties

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Fourier-transform
infrared spectroscopy (FTIR, Spectrum one, PerkinElmer, Waltham, MA)
was used to characterize the occurrence of the reaction. Scanning
electron microscopy (SEM, FEI QUANTA FEG250) was used to investigate
the pore structure of the samples. Both nitrogen adsorption (ASAP
2020 M, Micromeritics, Norcross, GA) and mercury intrusion porosimetry
(Poremastier-60, Quantachrome, Boynton Beach, FL) tests were used
to measure the pore size and its distribution of the resultant material.50 (link) The wettability of the sample was studied by
measuring the contact angle (CA) on an instrument (OCA 40, Dataphysics,
Germany) at room temperature. Also, the CA was measured in several
environments including in air, underwater, and under oil. The thermal
stability of the samples was measured by Diamond TG/DTA (PerkinElmer,
Shanghai, China) by heating each sample from 25 to 800 °C, with
a heating rate 10 °C/min under a nitrogen atmosphere. The size
distribution of emulsion was further measured by a dynamic light scattering
nanosizer (DLS, Nano-ZS 3600, Malvern, UK) at room temperature.
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3

Adsorption Capacity of Quartz and Cristobalite

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The sample
of α-quartz was naturally collected from Guiding, Guizhou Province
of China, and the α-cristobalite sample was purchased from Veston
Silicon Co., Ltd. in Guiping County, Guangxi Province of China. To
acquire a relatively uniform average particle size, both samples were
ground with a planetary ball mill (FRITSCH Pulverisette 6, Germany)
for about 2 h. All of the powders were immersed in 0.01 M HCl solution
for 24 h and then rinsed with deionized water until they were free
from chloride ions. After drying, the samples were calcined in a muffle
furnace at 450 °C for 12 h. The specific surface area of samples
was determined by a Micromeritics ASAP 2020M specific surface area
and porosity analyzer. To compare well the surface property of α-quartz
and α-cristobalite, the adsorption capacity was all normalized
to the specific surface area of samples.
Reagent-grade crystal
violet (CV) (C25H30N3Cl·3H2O, purity ≥ 99.0%), from Tianjin Kemiou Chemical Reagent
Co., Ltd., was used to prepare all solutions for the adsorption experiments.
All solutions were prepared in deionized water, and the solution pH
was adjusted with standard acid (0.1 M HCl) and standard base (0.1
M NaOH) solutions.
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4

Comprehensive Characterization of LAGP Composites

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The crystal structure of LAGP and PPG-co-PETA/LAGP composite were measured by X-ray diffraction (XRD, Bruker D8 ADVANCE, Germany) from 5° to 60° with a scanning rate of 6° min−1 at room temperature. The morphologies, elements’ composition and elements’ distribution were observed by scanning electron microscopy (SEM, Hitachi S-4800, Japan) equipped with energy dispersive X-ray spectroscopy (EDS). Thermogravimetric analysis (TGA, TGA-50) was carried out under an oxygen atmosphere from 30 to 600 °C with the heating rate of 5 °C min−1 to determine the amount of LAGP in the composite. The nitrogen adsorption/desorption measurement was carried out to characterize the specific surface area (SBET) and the pore size distribution, which were calculated by Brunauer-Emmett-Teller (BET) theory and density functional theory (DFT) method respectively, on a micromeritics analyzer (ASAP 2020M, Micromeritics, Norcross, GA, USA). Atomic force microscopy (AFM, Bruker Multimode 8, Germany) was tested by peak force quantitative mechanical mapping to characterize the mechanical properties of electrolyte membranes. The electrolyte uptake of the PPG-co-PETA/LAGP QSSCE was calculated from the following Equation (1), where w0 is the initial weight of the QSSCE, and wi is the final weight of the QSSCE after absorbing electrolytes for 6 h: Electrolyte uptake (%)=wiw0w0×100%   
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5

Comprehensive Characterization of Catalysts

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X-ray powder patterns (XRD) were obtained with a RIGAKU Ultima IV diffractometer using Cu Kα radiation. Nitrogen physisorption (N2-adsorption) measurements were carried out on a Micromeritics ASAP 2020 M apparatus at the temperature of liquid nitrogen (77 K). The specific surface area and pore volume were calculated according to the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods, respectively. Fourier-transform infrared (FT-IR) spectra of the catalyst samples were recorded on a Thermo Nicolet iS5 FT-IR spectrometer (KBr pressed flake). The acidity of the catalysts was measured using temperature-programmed desorption of ammonia (NH3-TPD) on a Micromeritics ASAP 2920 instrument. The acid properties of the catalysts were also investigated by pyridine FT-IR (Py-IR), performed on a Bruker TENSOR 27 instrument equipped with an in situ reactor cell. The samples were pre-treated firstly, the system was then degassed and evacuated at designated temperature, and the IR spectra were recorded. Scanning electron microscopy (SEM) images were recorded on a SUPRA55 apparatus. Transmission electron microscopy (TEM) images were obtained on a JEM-2100F microscope. Thermo-gravimetric analyses (TG) of the samples were carried out on an SDT Q600 apparatus from 298 to 1073 K with a heating rate of 10 K min−1 in air (25 ml min−1).
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6

Comprehensive Characterization of Nanomaterials

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The morphology of the as-prepared samples was investigated by scanning (SEM, S4800, Hitachi) and transmission (TEM, 2100F, JEOL) electron microscopy. X-ray photoelectron spectroscopy (XPS) analysis was conducted with a Physical Electronics PHI5802 instrument using X-rays magnesium anode (monochromatic Kα X-rays at 1253.6 eV) as the source. Raman spectra were recorded using a multi-wavelength micro-Raman spectroscope (JY HR800) utilizing 532.05 nm incident radiation and a 50× aperture. Nitrogen adsorption experiments were conducted at 77 K using a BELsorp mini-instrument (BEL). Oxygen adsorption experiments were conducted at 77 K using an ASAP2020M (Micromeritics). Before the adsorption measurements, the samples were degassed in vacuum at 473 K for 12 h. The specific surface areas of the samples were calculated by Brunauer-Emmett-Teller (BET) analyses of their adsorption isotherms. Thermo gravimetric analysis and differential scanning calorimetry (NETZSCH STA 449 F3 Jupiter) measurements were performed from room temperature to 900°C with a heating rate of 5°C min−1 in air. Atomic force microscopy (AFM) and Kelvin probe force microscope (KPFM) measurements were conducted for the sample which was sonicated to form a uniform dispersion and dropped onto a fresh silicon surface (peak force tapping mode, Bruke Multimode VIII).
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7

Comprehensive Material Characterization

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The morphology of the product was examined by scanning electron microscopy (SEM, Hitachi S-4700), transmission electron microscopy (TEM, Tecnai G220, FEI), and high-resolution TEM (HRTEM, Tecnai G2 F20 S-TWIN). The elemental constituents were characterized by energy-dispersive X-ray spectroscopy (EDS, Hitachi S-4700). The crystallographic information was analyzed by X-ray diffraction (XRD) on a X’Pert-Pro MPD diffractometer (PANalytical, Netherlands) with a Cu Kα X-ray source (λ = 1.540598 Å). Thermogravimetric analysis (TGA) was performed on PerkinElmer TGA 4000 thermogravimetric analyzer, and X-ray photoelectron spectroscopy (XPS, Escalab250Xi, UK) was conducted with a hemispherical electron energy analyzer. The specific surface area was performed via a Brunauer–Emmett–Teller (BET, Micromeritics ASAP 2020 M) analyzer, and the pore size distribution was calculated through the Barrett–Joyner–Halenda (BJH) method.
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8

Characterization of Catalytic Materials

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The powder
X-ray diffraction (XRD) patterns were recorded on a Rigaku D/max-2550VB/PC
diffractometer by using Cu Kα radiation (λ = 0.15406 nm).
Nitrogen adsorption/desorption isotherms of the catalysts were measured
on a Micromeritics ASAP 2020M sorption analyzer at 77 K. The Brunauer–Emmett–Teller
(BET) method was used to calculate the surface area. Scanning transmission
electron microscopy (STEM) characterization was performed using a
Thermo Fisher Talos F200X microscope. High-angle annular dark-field
(HAADF)-STEM images were recorded using a convergence semiangle of
11 mrad and inner and outer collection angles of 59 and 200 mrad,
respectively. Chemical analysis of the samples was performed by using
inductively coupled plasma-atomic emission spectrometry (ICP-AES).
H2 temperature-programmed reduction tests were carried
out on a Huasi DAS-7200 automatic chemisorption instrument. In a typical
run, 0.1 g of the catalyst was put into the quartz tube. Before reduction,
the catalyst was degassed and dehydrated at 150 °C in Ar. The
temperature was controlled from 20 to 800 °C at a rate of 10
°C min–1.
X-ray photoelectron (XPS) spectra
were recorded on a Thermo Scientific
Escalab 250 Xi system with monochromatic Al Kα radiation, and
all results were calibrated using the C 1s peak at 284.8 eV.
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9

Structural and Surface Characterization

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The phases of the samples were characterized by X-ray diffraction (XRD) on an X-ray powder diffractometer (Rigaku D/max-rA diffractometer, Cu Kα radiation, λ = 1.5406 Å). The XRD refinements were conducted by Rietveld method with FullProf_suite program. The morphologies and structures of the samples were observed by using field-emission scanning electron microscopy (FE-SEM, FEI Quanta 200F) and transmission electron microscopy (TEM, JEOL JEM-2100). The high-resolution TEM (HRTEM) image was obtained on the transmission electron microscopy. The Brunauer–Emmett–Teller (BET) specific surface area and pore size contribution plots were determined by N2 adsorption/desorption measurement (Micromeritics ASAP, 2020 M). The chemical compositions of the samples were determined by using inductively coupled plasma-optical emission spectrometry (ICP-OES, Agilent 730).
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10

Multimodal Characterization of SiO2-PANI Nanocomposite

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The morphologies of the as prepared SiO 2 (LuPc 2 ), PANI(PVIA) and SiO 2 (LuPc 2 )-PANI(PVIA)-CNB were examined by FEI-Nova scanning electron microscopy (SEM) with a low magnification (200,000×) and high voltage (20 kV). A Philips CM20 transmission electron microscopy (TEM) was used to obtain high resolution images operating at a voltage of 200kV. UV-Visible spectrophotometer (Varian 50-scan UV-Visible) was used to measure the absorption spectra of the platform. FT-IR spectra of pristine and integrated CNB were recorded on a Perkin Elmer Spectrum 100 spectrophotometer. The Brunauer-Emmett-Teller (BET) surface area of the platform was investigated through nitrogen adsorption-desorption isotherm measurements and performed on a Micromeritics ASAP 2020 M volumetric adsorption analyzer at 77.34 K. A precision measurement to the platform surface was carried out by using a computer programmed Philips X-Pert X-ray diffractometer to be employed for the X-ray diffraction (XRD) work, using a Cu Kα radiation source (λ = 0.154056 nm for Kα1) working at 40 KV and 40 mA. Electrochemical measurements were performed using a portable multi Potentiostat µStat 8000/8 channels purchased from DropSens (Spain) and controlled by PC with DropView 8400 software. Disposable screen-printed carbon electrodes
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