CATALYSIS SCIENCE & TECHNOLOGY CATALYSIS SCIENCE & TECHNOLOGY Polyoxometalates as alternative Mo precursors for methane dehydroaromatization on Mo/zsm-5 and Mo/mcm-22 catalysts Julián Ignacio Hueso José L. Lara Nidya Sole-Daura Albert Poblet Josep M. Mitchell Scott G. Universidad de Zaragoza Mallada Reyes Universidad de Zaragoza Santamaría Jesús Universidad de Zaragoza 2019 research-article