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. 2022 Jun 9;12(27):17182–17189. doi: 10.1039/d1ra06758c

The amount of surface acids over the different catalysts.

Sample Peak temperature (°C) Acid amount (a.u. g−1)
T 1 a T 2 T 3 S 1 b S 2 S 3
MnOx(0.36)-P 132 269 539 30.3 28.9 56.7
MnOx(0.36)-E 116 278 — 17.0 86.8 —
a

The desorption peak at temperature.

b

The area of desorption peak.