Hydrogen Separation From Reformed Gases Using High-Temperature Proton Conductors

Performance of palladium electrode for electrochemical hydrogen pump using strontium-zirconate-based proton conductors

“…As has been reported in our previous works, in the case of the hydrogen pump using the zirconate-based electrolyte, the electrode overpotentials were very high when used with a conventional porous platinum electrode [2,6]. The porous platinum works well for SCYb electrolyte as mentioned above [2][3][4], and thus, the choice of zirconate electrolyte leads not only to an increase in the electrolyte resistance but also to the reduction in the electrode performance for hydrogen-pumping cell.…”

“…So far, we have investigated a hydrogen separation method by electrochemical hydrogen pumps using high temperature proton conductors [1][2][3][4][5][6][7]. The schematic illustration of the electrochemical hydrogen pumps is shown in Fig.…”

“…In this work, we investigated the performance of palladium electrode used with strontium-zirconate-based proton-conducting electrolyte, i.e., SZY-91; palladium was employed as a possible electrode material for the zirconatebased electrolyte for which platinum was inactive [2,6]. In addition, in order to investigate the rate-determining step (RDS) of the electrode reactions, the effect of the palladium electrode morphology as well as the hydrogen partial pressure on the electrode overpotential is discussed.…”

Hydrogen pump using a high-temperature proton conductor for nuclear fusion engineering applications

“…Therefore, an on-line hydrogen isotope sensor using a proton conductor has been proposed for liquid metal type and solid type blanket systems [11,12]. Matsumoto et al have demonstrated the feasibility of hydrogen isotope sensing using proton conductors [13,14].…”

Effects of ion beam surface modification on proton conductivity of BaCe0.9Y0.1O3−δ

“…Proton conducting oxides have potential applications as electrolytes of fuel cells, gas sensors [1] and hydrogen pumps [2][3]. Especially, many studies on proton conducting materials have been widely performed [4][5][6].…”