Campos, João M.Lourenço, J. P.Fernandes, A.Ribeiro, M. R.2013-01-072013-01-072008Campos, J. M.; Lourenço, J. P.; Fernandes, A.; Ribeiro, M.R . Mesoporous Ga-MCM-41: a very efficient support for the heterogenisation of metallocene catalysts, Catalysis Communications, 10, 71-73, 2008.1566-7367AUT: JLO01215;http://hdl.handle.net/10400.1/2059Mesoporous Ga-containing silicates prepared by direct synthesis, Ga-MCM-41, are used in combination with metallocene Cp2ZrCl2 to provide very effective supported catalysts for ethylene polymerisation. A pre-treatment with methylalumoxane is not required in order to achieve high polymerisation activity levels with these catalysts, whose stability is improved when compared to the case where a purely siliceous support was used for the immobilisation of the metallocene.engEthylene polimerisationGaMCM-41Zirconocenejournal article2013-01-03