Kim, Jeong Hun Shin, Sung Soo Noh, Ho Sung Son, Ji-Won Choi, Mansoo Kim, Hyoungchul 2024-01-20T00:00:35Z 2024-01-20T00:00:35Z 2021-09-03 2017-12-15 0376-7388 https://pubs.kist.re.kr/handle/201004/121917 A versatile and robust process was developed for the fabrication of ceramic films in solid oxide fuel cells (SOFCs), allowing the microstructures of the films to be tailored from porous to dense. This nanoscale spray process was assisted by electrospray ionization and specific polymer additives such as polyvinyl pyrrolidone and polyvinyl butyral, and it provided a large degree of freedom for controlling the membrane microstructures of the cathode and electrolyte. The final spray-deposition-based SOFC cell, which consisted of a dense, thin electrolyte (thickness: similar to 4 mu m) and a crack-free porous cathode layer (thickness: similar to 10 mu m), exhibited notable reliability, an open-circuit voltage of similar to 1.11 V (approaching the theoretical value), and a maximum power density of similar to 805 mW/cm(2) at 650 degrees C, which is substantially higher than the power-generating performances of previously reported spray-deposition-based SOFCs. English ELSEVIER SCIENCE BV ELECTROSTATIC SPRAY DEPOSITION FREESTANDING MICRO-SOFCS DOPED CERIA ELECTROLYTE ELECTROCHEMICAL PERFORMANCE COMPOSITE CATHODE YSZ ELECTROLYTE SUSPENSION FILMS MICROSTRUCTURE FABRICATION Tailoring ceramic membrane structures of solid oxide fuel cells via polymer-assisted electrospray deposition Article 10.1016/j.memsci.2017.09.027 1 JOURNAL OF MEMBRANE SCIENCE, v.544, pp.234 - 242 JOURNAL OF MEMBRANE SCIENCE 544 234 242 scie scopus 000412350900025 2-s2.0-85029443148 Engineering, Chemical Polymer Science Engineering Polymer Science Article ELECTROSTATIC SPRAY DEPOSITION FREESTANDING MICRO-SOFCS DOPED CERIA ELECTROLYTE ELECTROCHEMICAL PERFORMANCE COMPOSITE CATHODE YSZ ELECTROLYTE SUSPENSION FILMS MICROSTRUCTURE FABRICATION Ceramic membrane structure Solid oxide fuel cells Polymer-assisted electrospray deposition Powder agglomeration Polymer additives