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Supplementary Material Conversion of methanol to olefins: Stabilization of nanosized SAPO-34 by hydrothermal treatment Zhibin Li 1 , Joaquín Martínez-Triguero 1 , Jihong Yu 2* , Avelino Corma 1* 1 Instituto de Tecnología Química (UPV-CSIC), Universidad Politécnica de Valencia, Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 Valencia, Spain 2 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China -70 -80 -90 -100 -110 -120 -130 ppm Si
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Supplementary Material
Conversion of methanol to olefins: Stabilization of nanosized
SAPO-34 by hydrothermal treatment
Zhibin Li 1, Joaquín Martínez-Triguero1, Jihong Yu2*, Avelino Corma1*
1 Instituto de Tecnología Química (UPV-CSIC), Universidad Politécnica de Valencia,
Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022
Valencia, Spain
2State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of
Chemistry, Jilin University, Changchun, 130012, China
-70 -80 -90 -100 -110 -120 -130
ppm Si
Figure S1. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 after exposure to moisture at room temperature for 1 day.
Figure S2. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 after exposure to moisture at room temperature for 21 days.
-70 -80 -90 -100 -110 -120 -130
ppm Si
Figure S3. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 steamed at 600ºC after exposure to moisture at room temperature for 1 day.
-70 -80 -90 -100 -110 -120 -130
ppm Si
Figure S4. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 steamed at 600ºC after exposure to moisture at room temperature for 7 days.
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ppm Si
Figure S5. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 steamed at 600ºC after exposure to moisture at room temperature for 14 days.
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ppm Si
Figure S6. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 steamed at 700ºC after exposure to moisture at room temperature for 8 days.
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ppm Si
Figure S7. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 steamed at 700ºC after exposure to moisture at room temperature for 75 days.
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ppm Si
Figure S8. 29Si MAS NMR signal and deconvolution of nano-SAPO-34 steamed at 700ºC after exposure to moisture at room temperature for 90 days.
Figure S9. C2/C3 ratio in MTO at 400ºC WHSV=7h-1 on nano and standard-SAPO-34 compard with a sample of SAPO-34 synthesized containing isolated Silicon.
Standard SAPO-34
SAPO-34 isolated Si
Nano SAPO-34
C2/C3 (mol/mol)
time (min)100806040200
1,6
1,5
1,4
1,3
1,2
1,1
1
0,9
-150-130-110-90-70-50
ppm Si
SAPO-34 isolated Si
-93
ppm
Figure S10. 29Si MAS NMR of sample of sample ofSAPO-34-isolated Si” synthesized with Si/(Al+P)=0.1 showinng the absence of Silicon islands
