An appraisal of the application of open-cell foams in automotive SCR systems Andrea Vespertini, Augusto Della Torre, Gianluca Montenegro, Angelo Onorati, Enrico Tronconi and Isabella Nova E3S Web Conf., 197 (2020) 06007 Published online: 22 October 2020 DOI: 10.1051/e3sconf/202019706007