Effect of substitution with Cr3+ and addition of Ni on the physical and electrochemical properties of Ce0.9Sr0.1VO3 as a H2S-active anode for solid oxide fuel cells

Ce0.9Sr0.1Cr0.5Mn0.5O3−δ as the anode materials for solid oxide fuel cells running on H2 and H2S

“…The reason maybe is that the CSCMn occurs reforming in H 2 S forming Ce-O-S phases, which is consistent with Ref. [18,19].…”

“…Ce 0.9 Sr 0.1 Cr 0.5 Mn 0.5 O 3-δ (CSCMn) powders were synthesized by gel combustion method [18,19]. Simply, stoichiometric Ce(NO 3 ) 3 ·6H 2 O, Sr(NO 3 ) 2 , Cr(NO 3 ) 3 ·9H 2 O and Mn(CH 3 COO) 2 ·4H 2 O were weighed and dissolved in distilled water.…”

“…In 2009, Jingli Luo et al studied the performance of Ce 0.9 Sr 0.1 VO 3-δ (CSV) [18] and Ce 0.9 Sr 0.1 Cr 0.5 V 0.5 O 3-δ (CSCV) [19] in H 2 S and H 2 . They found that the catalyst activity of CSCV and CSV was much higher in H 2 S than that of in H 2 , even though some CSCV and CSV reacted with H 2 S to generate Ce 0.9 Sr 0.1 Cr 0.5 V 0.5 (O,S) 3-δ and Ce 0.9 Sr 0.1 V(S,O) 3-δ .…”

Solid Oxide Fuel Cell Anode Materials for Direct Hydrocarbon Utilization

“…A Ce 0.9 Sr 0.1 V 0.5 Cr 0.5 O 3 -YSZ anode together with 5 wt.% Ni attained P max of only 35 mW cm − 2 in dry CH 4 . [ 365 ] Another approach to mitigate the redox instability problem focuses on ortho-and pyro-vanadates which are by themselves stable in oxidizing atmospheres, such as FeVO 4 , [ 366 ] Co 2 V 2 O 7 , [ 367 ] , Ce 1− x Ca x VO 4 , [ 368 ] and Ce 1− x Sr x VO 4 . [ 362 ] The underlying methodology is to make these vanadates also stable in reducing environment.…”

Ce0.9Sr0.1Cr0.5Fe0.5O3−δ as the anode materials for solid oxide fuel cells running on H2 and H2S

“…Through analysis of XRD and IR, some Ce 0.9 Sr 0.1 Cr 0.5 Fe 0.5 (O, S) 3−ı are produced after exposure to 5% H 2 S-N 2 at 800 • C for 5 h, which has a resemblance to Refs. [1,2]. The electrochemical properties were measured for the cell comprising CSCrF-Sm 0.2 Ce 0.8 O 1.9 /Sm 0.2 Ce 0.8 O 1.9 /Ag in 5% H 2 S at low temperature (450, 500, 550 and 600 • C), and in 3% H 2 -N 2 at 500 • C, respectively.…”