Dispersion of KF on AlPO4-5 molecular sieve created basic sites and caused 1654 cm- band of bidentate carbonate in CO2 adsorption.After pre-treated above 823K. 5%KF/AlPO4-5exhibited basic catalytic activity in the iso...Dispersion of KF on AlPO4-5 molecular sieve created basic sites and caused 1654 cm- band of bidentate carbonate in CO2 adsorption.After pre-treated above 823K. 5%KF/AlPO4-5exhibited basic catalytic activity in the isomerization of butenes at 273K. and the activity increasedwith the pre-treatment temperature up to 923K.展开更多
Berlinite (α-AlPO4) is a new piezoelectric crystal material with good property. Its piezoelectric constant and mechanic-electric coupling efficiency are all higher than those ofquartz. Now berlinite of high quality...Berlinite (α-AlPO4) is a new piezoelectric crystal material with good property. Its piezoelectric constant and mechanic-electric coupling efficiency are all higher than those ofquartz. Now berlinite of high quality has been grown successfully in labs.展开更多
文摘Dispersion of KF on AlPO4-5 molecular sieve created basic sites and caused 1654 cm- band of bidentate carbonate in CO2 adsorption.After pre-treated above 823K. 5%KF/AlPO4-5exhibited basic catalytic activity in the isomerization of butenes at 273K. and the activity increasedwith the pre-treatment temperature up to 923K.
文摘Berlinite (α-AlPO4) is a new piezoelectric crystal material with good property. Its piezoelectric constant and mechanic-electric coupling efficiency are all higher than those ofquartz. Now berlinite of high quality has been grown successfully in labs.