Effect of reduction temperature on the electrochemical properties of a Ni/YSZ anode-supported solid oxide fuel cell

Conductivity and stability of cobalt pyrovanadate

“…Co2V2O7 was synthesised by a conventional solid state method, according to previous work by Touaiher et al [8]. Powders of CoCO3 (99% metals basis, Alfa Aesar) and V2O5 (99.6+% metals basis, Sigma-Aldrich) were ground and fired sequentially at 150 • C, 300 …”

“…In Co 2 V 2 O 7 , cobalt is found in edge sharing octahedra with a cobalt-cobalt distance of ∼3Å [8], thus the likely percolation pathway is through electron hopping between cobalt d-orbitals. Additionally, the isolated nature of the vanadium tetrahedra and the structural change of vanadium upon reduction intimates that conduction between vanadium d-orbitals is unlikely to be the dominant pathway for conduction.…”

“…Extensive research has already been conducted in this area with some success [1][2][3][4], however the majority of anode materials consist of Ni-electrolyte cermets which still suffer from Ni agglomeration, fuel inflexibility and poor sulphur tolerance [5][6][7][8]. Additionally, many of these materials are developed for using at high temperature.…”

Influence of the ratio between Ni and BaCe0.9Y0.1O3−δ on microstructural and electrical properties of proton conducting Ni–BaCe0.9Y0.1O3−δ anodes

“…Jin et al produce anode supported tubular SOFC using inverse method [11] and Wang et al found that Cu-CeO 2 coating of Ni-YSZ can improve anode stability in H 2 -CO syngas [12]. Li et al investigated the effect of reduction temperature on the characteristics of anode-supported SOFC single cell [13] and Klemensø et al were examined stability of Ni-YSZ abodes obtained by Ni impregnation using different sintering inhibitors [14].…”

Influence of MoO3 doping on structure and electrical conductivity of defect fluorite-type Gd2Zr2O7

“…Typically, SOFCs consist of an ionic conducting electrolyte and mixed ionic and electronic conducting electrodes (cathode and anode). The conventional electrolyte is 8 mol% Y 2 O 3 -ZrO 2 (YSZ), and the anode is Ni-YSZ cermets and cathode is La 1−x Sr x MnO 3 oxide, respectively [2][3][4]. However, unwanted chemical reactions generally take place at the cathode/electrolyte interface when SOFCs are operated at high temperatures for a long time.…”