Hydrogen Kinetics in Membrane Alloys Based on Fe–Ni, Nb–Ni, and V–Ni

Design of Mixed Ionic-Electronic Materials for Permselective Membranes and Solid Oxide Fuel Cells Based on Their Oxygen and Hydrogen Mobility

“…They possess absolute selectivity with respect to hydrogen; however, they are too expensive and have issues with stability under operating conditions [ 49 , 55 , 56 , 84 , 85 , 99 , 139 , 358 ]. As an alternative to precious metals, Ni and its alloys, being cheap but also possessing a high mixed protonic-electronic conductivity, can be used in hydrogen separation membranes in an individual form or as a component of cermet composites [ 55 , 56 , 132 , 216 , 359 , 360 ]. V and its alloys with Ni, Cu, V, Nb, Ta and other metals are promising materials showing high hydrogen permeation fluxes exceeding those for Pd-based membranes and having a lower cost [ 55 , 359 , 360 , 361 ].…”

“…As an alternative to precious metals, Ni and its alloys, cheap but also possessing a high mixed protonic-electronic conductivity, can be u hydrogen separation membranes in an individual form or as a component of cerme posites [55,56,132,216,359,360]. V and its alloys with Ni, Cu, V, Nb, Ta and other are promising materials showing high hydrogen permeation fluxes exceeding tho Pd-based membranes and having a lower cost [55,[359][360][361]. The comparison of the h gen self-diffusion coefficient values of various metals and alloys is given in Figure T (°C) [332], 4-La 0.99 Ca 0.01 NbO 4 -LaNb 3 O 9 [356], 5-Y 3 Fe 5 O 12 [338].…”

“…hydrogen separation membranes in an form or as a component of cer posites [55,56,132,216,359,360]. V and its alloys with Ni, Cu, V, Nb, Ta and oth are promising materials showing high hydrogen permeation fluxes exceeding Pd-based membranes and having a lower cost [55,[359][360][361]. The comparison of th gen self-diffusion coefficient values of various metals and alloys is given in Figu T (°C)…”

Design of Mixed Ionic-Electronic Materials for Permselective Membranes and Solid Oxide Fuel Cells Based on Their Oxygen and Hydrogen Mobility

“…They possess absolute selectivity with the respect to hydrogen, however, they are too expensive and have issues with stability under operating conditions [48,54,55,99,100,[304][305][306]. As an alternative to precious metals, Ni and its alloys being cheap but also possessing a high mixed protonic-electronic conductivity can be used in hydrogen separation membranes in an individual form or as a component of cermet composites [54,55,90,195,307,308]. V and its alloys with Ni, Cu, V, Nb, Ta and other metals are promising materials showing high hydrogen permeation fluxes exceeding those for Pd-based membranes and having lower cost [54,[307][308][309].…”

“…As an alternative to precious metals, Ni and its alloys being cheap but also possessing a high mixed protonic-electronic conductivity can be used in hydrogen separation membranes in an individual form or as a component of cermet composites [54,55,90,195,307,308]. V and its alloys with Ni, Cu, V, Nb, Ta and other metals are promising materials showing high hydrogen permeation fluxes exceeding those for Pd-based membranes and having lower cost [54,[307][308][309]. The comparison of the hydrogen selfdiffusion coefficient values of various metals and alloys is given in Figure 26.…”