Study of the effect of an electric field and catalysts on hydrophobic properties of soot formed in propane – air flame - Nazhipkyzy, Meruyert; Otarova, Sabina; Lesbayev, Bakhytzhan; Prikhodko, Nikolay; Zhaparova, Aizhan; Mansurov, Zulkhair (Chemical Bulletin of Kazakh National University, 2014)