Transition Metal Chemistry
Acknowledgements This work was financially supported by the
National Natural Science Foundations of China (41701305), the
Science and Technology Planning Project of Guangdong Province
(2017B030314092), Science and Technology Foundation of Sichuan
Province (2017JY0015), the Fundamental Research Funds of CWNU
(17C038) and the Meritocracy Research Funds of CWNU (17Y031).
20 h. Subsequently, the methanol was evaporated to obtain
P-(L-TPP)-Fe.
Catalyst characterization
FTIR spectra of the samples were obtained under ambient
conditions at a resolution of 4 cm−1 in the wavenumber range
of 4000–400 cm−1 using a NEX-US670 spectrometer. C, H
and N EAs were performed on a Vario EL cube instrument.
TGA was carried out using a NETZSCH STA 449 F3 instru-
ment by heating samples from 40 to 800 °C at a heating rate
of 10 °C min−1 under an air atmosphere. Solution 1H NMR
data were collected using a Varian INOVA 500NB spec-
trometer using TMS as an internal standard. SEM images
were obtained using a GeminiSEM 500 scanning electron
microscope. TEM images were obtained using a JEM-2100F
feld emission electron microscope (JEOL, Japan), which
incorporated a probe corrector, at an acceleration voltage of
200 kV. The N2 adsorption and desorption measurements
were performed on a Quantachrome ASIQM0000-5 ana-
lyzer at 77 K. Specifc surface areas (SBET) were calculated
using the Brunauer–Emmett–Teller (BET) method, and
the pore size distributions were determined using NLDFT.
XPS analysis was carried out on an ESCALAB 250 spec-
trometer. Metal contents were analyzed by atomic absorp-
tion spectrometry (AAS) on a PerkinElmer AA-300. Gas
chromatography (GC) analysis was performed on an Agilent
Technologies 7890A gas chromatograph equipped with a
fame ionization detector and a capillary column (Rtx-5,
30 m×0.32 mm×0.25 μm).
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stainless steel autoclave operated in semi-batch mode (CO2
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added into the autoclave. After sealing and purging with CO2
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required pressure, followed by stirring at the required tem-
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