Nanostructured ceramic materials: Applications in gas sensors and solid-oxide fuel cells

Intrinsic vacancies in cubic-zirconia bulk and surface

“…Zirconia, ZrO2, is widely applied on catalyst [1], gas sensors [2], fuel cells [3][4][5], thermal barrier coating [6]. For instance, nanocrystalline ZrO 2 -CeO 2 solid solutions showed excellent catalytic properties and exhibited high performance as anode in fuel cells because of the mixed ionic-electronic conduction in reducing atmosphere [5].…”

“…For instance, nanocrystalline ZrO 2 -CeO 2 solid solutions showed excellent catalytic properties and exhibited high performance as anode in fuel cells because of the mixed ionic-electronic conduction in reducing atmosphere [5]. It is well known that defects play an important role for the properties of functional materials [7,8].…”

ZrO 2 /carbon aerogel composites: A study on the effect of the crystal ZrO 2 structure on cationic dye adsorption

“…These structures are used for various applications, including solid oxide electrolytes [1] , drug delivery [2,3] , catalysis [4,5] , solar cells [6] and adsorption [7,8] . The crystalline structure of ZrO 2 is very important for applications.…”

Co2MnO4 spinel-palladium co-infiltrated La0.7Ca0.3Cr0.5Mn0.5O3− cathodes for intermediate temperature solid oxide fuel cells

“…In recent years, intermediate temperature solid oxide fuel cells (IT-SOFCs) with operating temperature in the range of 600-850 • C as a clean power source have attracted worldwide attention due to their much higher conversion efficiencies as compared to the conventional energy conversion systems [1,2]; and their distinguished advantages over other types of fuel cells such as system compactness, promising benefits of the increased long-term stability, wide range of material selection and possibility of using low cost interconnect materials and processing techniques [3][4][5][6][7][8][9][10][11][12]. Cathode is one of the key components of IT-SOFCs and is the place where pure oxygen or oxygen from air is reduced to oxygen ions through the combination of electrons supplied externally from the cell.…”