@article{oai:repository.lib.tottori-u.ac.jp:00007273, author = {Suganuma, Satoshi and Suganuma, Satoshi and Zhang, Haiyan and Yang, Chengguang and Xiao, Feng-Shou and Katada, Naonobu and Katada, Naonobu and Zhang, Haiyan and Yang, Chengguang and Xiao, Feng-Shou}, issue = {2}, journal = {Journal of porous materials, Journal of porous materials}, month = {}, note = {The acidic property of a BEA zeolite prepared by a seed-directed synthesis (SDS) method without organic structure directing agent (OSDA) was analyzed by a method of ammonia infrared / mass spectroscopic (IRMS) temperature-programmed desorption (TPD). The number of Brønsted acid sites on the SDS-BEA zeolite was larger than that on a conventional BEA zeolite synthesized from using OSDA. The enthalpy of ammonia desorption, distributed mainly in a range between 115 and 145 kJ mol-1, was in agreement with the acid strength region generated by isomorphous substitution of Si4+ by Al3+ in the BEA framework. These observations confirm that the microstructure around the incorporated Al in the SDS-BEA zeolite was equivalent to that in the conventional one.}, pages = {415--421}, title = {Acidic Property of BEA Zeolite Synthesized by Seed-directed Method}, volume = {23}, year = {2016} }