Scientometric review of advancements in the development of high-performance cathode for low and intermediate temperature solid oxide fuel cells: Three decades in retrospect

Materials development and prospective for protonic ceramic fuel cells

“…In the conventional SOFCs, what is currently prominent is the development of single-phase mixed ionic and electronic conducting (MIEC) cathodes, which are different from the early traditional SOFCs where cathode reactions are limited to the triple-phase boundary (ie, the interface where oxygen ion, electrolyte, and cathode coincide). 28,145 The MIEC concept in SOFCs gives the possibility of extending the reaction zone beyond the TPB to the whole surface of the cathode depending on the efficacy of the cathode constitutive elements. 25,146 Some of the most outstanding results of cathode materials developed for SOFC with MIEC are Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3Àδ (BSCF) 147 and La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 À δ (LSCF).…”

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

“…Their electrochemical performance is reported to be better than that of the parent perovskites. Therefore, these phases are currently considered as being very promising cathode materials, especially for IT–SOFCs [ 4 , 6 , 8 , 9 , 10 , 34 , 35 , 40 , 41 ] and have been intensively studied both as single materials and SOFCs components [ 42 ].…”

Research and Development Investment and Collaboration Framework for the Hydrogen Economy in South Korea

“…The other approach involves focusing on the value chain of the hydrogen economy from an infometrics perspective (bibliometrics and scientometrics), which is based on a paper and/or patent [1, [32][33][34][35][36], or from the evaluation of green energy sources [37][38][39]. Some scholars have presented future research directions by investigating the evolution of hydrogen research regarding production [1, 33,40,41], storage/transportation [33,34,42], and utilization [35,36,[43][44][45][46][47], as discussed in Section 1.1.2. Several studies have revealed the emergence of biohydrogenation, photocatalysis, and water splitting as methods for producing hydrogen from renewable energy sources [1, 33,40,41], thus revealing prominent international cooperation among different countries/regions and institutions [42].…”

“…Regarding hydrogen storage/transportation, the development of new hydrogen storage materials was identified as a valuable research field focused on reducing the requirements of implementing hydrogen absorption and desorption [42], and requiring investment [34]. Regarding hydrogen utilization, the studies on FCs, including proton-exchange membrane FCs (PEMFCs) [43,45], solid oxide FCs (SOFCs) [44], and microbial FCs (MFCs) [35], which are considered the next-generation power sources, present the information of the researchers, governments, funding authorities, and investors, as well as the potential collaborative research partners, that could tend toward commercialization. Moreover, the current status of FCEV-related research was investigated to identify the main agents that are involved in scientific and technological research to reveal their collaborative relationships [46] and identify potential R&D opportunities [47].…”