AEROGEL CATALYST MODIFICATION TO IMPROVE CATALYTIC STABILITY DURING THE NITROXIDATION OF PROPYLENE M. RAHMAN, R. J. WILLEY et S. J. TEICHNERJ. Phys. Colloques, 50 C4 (1989) C4-7-C4-11DOI: https://doi.org/10.1051/jphyscol:1989402