Direct Synthesis and Characteristics of NH4-βZeolite with Hierarchical Pore Structure
CHEN Ran, GONG Yan-Jun, LI Qiang, DOU Tao, ZHAO Zhen, XU Qing-Hu
Acta Physico-Chimica Sinica . 2009, (03): 539 -544 .  DOI: 10.3866/PKU.WHXB20090323