Effects of different surfactants on the silica content and characterization of Ni–SiO2 nanocomposites Ahmad Rouhollahi*, Omid Fazlolahzadeh, Abolghasem Dolati, Fazel Ghahramanifard, 10.1007/s40097-018-0259-4 XML Requires Subscription PDF Requires Subscription HTML downloads: 135 views: 53