On the influence of water traces on the acidity measurement of amorphous aluminosilicates

Hiroyuki Yasuda, Toshikazu Takahashi,Jeanmarc Krafft, Colin Dupont,Celine Sayag,Juliette Blanchard

Catalysis Today（2014）

引用 7|浏览16

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摘要

•Unwanted H2O adsorption modifies acidity distribution in standard conditions.•A procedure is proposed to suppress water readsorption during acidity measurement.•First time report of the position of the bands of D2O adsorbed on undercoordinated Al.•Water adsorption on Lewis sites leads to Brønsted sites stronger than the native ones.

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关键词

Brønsted acidity,Lewis acidity,Amorphous silica-alumina,ASA,BAS,LAS

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