The　electrical　property　of　sealing　glass-ceramics　is　of　great　importance　for　Solid　Oxide　Fuel　Cell　(SOFC)　applications.　In　spite　of　their　good　sintering　property,　CeO2-containing　glass-ceramics　often　lack　in　sufficient　electrical　resistance,　due　to　the　formation　of　CeO2　as　a　conductive　phase.　Here　we　report　for　the　first　time　that　the　electrical　conductivity　of　CeO2-containing　glass-ceramics　can　be　reduced　by　an　order　of　magnitude　with　HfO2　dopant.　A　mechanism　on　the　improved　electrical　property　has　also　been　proposed　in　terms　of　the　structural　change　in　HfO2-doped　glass-ceramics.　In　addition,　the　relationship　between　phase　evolution　of　HfO2-doped　glass-ceramics　and　the　change　in　conductivity　with　operational　time　has　been　systematically　investigated.　Moreover,　HfO2-doped　glass-ceramics　show　good　chemical　compatibility　with　8　mol.%　yttria-stabilized　zirconia　(8YSZ)　electrolyte,　after　held　at　750　degrees　C　for　500　h.　The　reported　results　support　the　suitability　of　prepared　glass-ceramics　as　sealing　materials　for　SOFC　applications.　(C)　2015　Elsevier　Ltd.　All　rights　reserved.