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A) Argon adsorption isotherms measured at −186 °C. Parent calcined IWW zeolite (Si/Ge 3.1) (1), hydrolyzed and calcined IPC-5 (2), surfactant-treated and calcined IPC-5SW (3), and surfactant-treated-intercalated and calcined—restored IWW (4). Open symbols denote desorption isotherms. B,C) Pore size distribution in the range between 0-15 nm (B), a closer view on the range 0.5–1.5 nm (C). The samples were hydrolyzed using 0.1 m HCl.
