Synthesis, characterization, and application of mesoporous alumina prepared from pseudo-boehmite as precursor

被引：10

作者：

Hu, Changhua ^{[1
]}

Liu, Yanxiong ^{[2
]}

Cao, Qiue ^{[2
]}

Bian, Longchun ^{[2
]}

机构：

[1] Yunnan Univ, Sch Mat Sci & Engn, Kunming 650091, Yunnan, Peoples R China

[2] Yunnan Univ, Sch Chem Sci & Technol, Kunming 650091, Yunnan, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2020年 / 742卷

基金：

美国国家科学基金会;

关键词：

Mesoporous alumina; Pseudo-boehmite; Porosity; Methane combustion; CATALYTIC COMBUSTION; SURFACTANT; OXIDATION; METHANE; SILICA; PHASE;

D O I：

10.1016/j.cplett.2020.137130

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Commercial pseudo-boehmite was modified, and a series of mesoporous aluminas (MA) with different textural properties were synthesized using selected group of surfactants including sodium dodecylsulphate (SDS), cetyltrimethyl ammonium bromide (CTAB), and polyethylene glycol (PEG) in aqueous solution. The structure and morphology of samples were evaluated, and the catalytic activity for the methane combustion was also discussed. The results suggested that sample templated by PEG exhibited a high pore volume and surface area when calcined at 1050 degrees C. This considerably improved the catalytic performance for methane combustion. The lightoff (T-10) and final (T-90) combustion temperatures were as low as 305 degrees C and 400 degrees C.

引用

页数：6

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