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Super-microporous alumina (pore size between 1 and 2 nm) with polycrystalline walls and high surface area (more than 650 m 2 /g) was synthesized successfully via an evaporation induced self-assembly (EISA) pathway using readily available and inexpensive nonionic surfactant fatty alcohol polyoxyethylene ether (AEO-7) as the template. N 2 adsorption-desorption results showed that the obtained materials are super-microporous when removing the template at 400 °C, then if the calcination temperature increase from 600 °C to 1000 °C, a breakdown of the walls separating adjacent pores allows the transformation to mesopores (pore size > 2 nm). FTIR pyridine adsorption and NH 3 -TPD measurement suggested the presence of strong Lewis acid sites. Transmission electron microscopy (TEM) measurements indicated that the alumina possesses the disordered “wormhole-like” super-microporous structure with polycrystalline walls. Loaded with copper, the catalyst exhibited outstanding activity in the selective catalytic reduction of NO with methane and could achieve a NO x conversion 100% when the reaction temperature is over 600 °C. [ABSTRACT FROM AUTHOR]

Super-microporous nanocrystalline zirconia (pore size 1–2 nm) was synthesized via the evaporation-induced self assembly (EISA) process with solid–liquid method. The acidic etching process of zirconia resulted in the formation of microporous material with surface area of 414 m 2 /g in comparison with that of 141 m 2 /g for the parent material when treated at 400 °C. Even after calcination at 700 °C, the pore structure was fairly preserved for the post-treated samples and the material still exhibited a high surface area of 223 m 2 /g. However, for samples without post-treatment, their pore walls collapsed totally and surface area decreased drastically when calcinated at 550 °C. [ABSTRACT FROM AUTHOR]