Fabrication of electrolyte supported micro-tubular SOFCs using extrusion and dip-coating

Micro-tubular flame-assisted fuel cells running methane

“…Unfortunately, the internal diameter of a mT-SOFC, which is a few millimeters or less by definition [22][23][24][25][26][27][28][29][30][31][32][33], is below the quenching distance of traditional hydrocarbon fuels, such as methane, ethane, propane and methanol, which prevents flame propagation [34,35]. While it is not possible to operate the mT-SOFC with a direct flame on the tube interior, which is needed for a DFFC setup, the mT-SOFC could operate in fuel-rich combustion exhaust.…”

Exceptional wearability of multifunctional TiO2-coated hybrid silk fabric with controllable ultraviolet-protection properties

“…These steps were repeated at least three times, and the thoroughly degummed silk fabrics were then dried at room temperature. For the ALD, titanium (IV) isopropoxide (TIP, 99.999% metals basis) was purchased from Aladdin industrial Co., Ltd, and water (10)(11)(12)(13)(14)(15)(16) MÁcm at 25 C) was also purified using a Milli-Q Plus 185 water purification system (Millipore, Bedford, MA). Ultra-high purity nitrogen gas (N 2 , 99.999%, Wuhan Xiangyun Supply Co., Ltd) was used in this study as the purge and carrier gas.…”

“…As a result, this has come to be regarded as one of the most effective strategies for improving the properties of silk. [10][11][12] Over the past few decades, several techniques, including finishing, dyeing, dip-coating and extrusion, 13,14 have been used for producing UV-protective silk-based materials. However, these methods are not always environmentally friendly and can even induce undesirable changes in the general properties of the treated silk fiber/fabric.…”

Co-extrusion of zirconia core-shell rods with controlled porosity in the core

“…For example, ceramic core-shell rods based on zirconia and/or other ceramic materials have been applied as PZT actuators [3], bioceramic implants with a bone structure [7][8][9], solid oxide fuel cells [10,11] or as oxygen separation membranes [12,13]. Such structures can be fabricated by many methods such as freeze casting [5,7,14,15], slip casting or extrusion followed by a coating process [6,16,17], electrophoretic deposition [18], and co-extrusion [3,4,19,20]. The last mentioned method, co-extrusion, exhibits many processing advantages such as simple production with excellent interface between the core and shell materials, lowcost production and better mechanical properties of coextruded bodies compared with other shaping methods [16,21,22].…”

“…A rheological description of the co-extrusion process and the demands on the feedstocks for a successful thermoplastic co-extrusion of ZTA/alumina core-shell rods have also been presented [4]. The core-shell rods with controlled porosity in the core represent another promising material structure that can benefit not only from the modified mechanical behaviour [5,7,8,14] but, in some cases, even from their interesting functional properties and behaviour [11,17,24]. Recently, Choi et al [20] have reported on co-extrusion of core-shell rods with porous cores of variable size.…”