NH3-TPD showed that the catalyst has both weak and strong acid sites.The catalytic activities of the solid acid catalysts were evaluated by esterification of acetic acid and ethanol.

• NH3-TPD结果表明；该催化剂同时具有弱酸及强酸位.；用乙酸/乙醇酯化催化反应评估了该固体酸的催化性能