Solid state NMR study of acid sites formed by adsorption of SO3 onto gamma-Al2O3.
Detailed structure of Brønsted acid sites on the surface of SO3/Al2O3 catalyst has been proposed based on 1H/27Al TRAPDOR NMR results and the acidity of the catalyst has also been characterized by NMR probe molecules.
Yang
Jun
J
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, PR China.
Zhang
Mingjin
M
Deng
Feng
F
Luo
Qing
Q
Yi
Delian
D
Ye
Chaohui
C