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Characterization of the acidity of faujasite- and pentasil-zeolites by calorimetric measurements of the ammonia chemisorption

✍ Scribed by H. Stach; R. Wendt; U. Lohse; J. Jänchen; H. Spindler


Book ID
108023320
Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
319 KB
Volume
3
Category
Article
ISSN
0920-5861

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✍ Carmela V. Hidalgo; Hirofumi Itoh; Tadashi Hattori; Miki Niwa; Yuichi Murakami 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 584 KB

The acidity of H-form zeolites which include mordenite, ZSM-5, Y-faujasite, and those modified by cation exchange or deahrmination was measured by temperature-programmed desorption (TPD) of NHp. Ammonia was adsorbed at 373 K to eliminate the contribution of very weak acid sites and improve the spect