PdO/Pd system equilibrium phase diagram under a gas mixture of oxygen and nitrogen

Pd-substituted (La,Sr)CrO3−–Ce0.9Gd0.1O2− solid oxide fuel cell anodes exhibiting regenerative behavior

“…For the as-prepared material, a broad peak at ∼1.5-2Å overlapped peaks from both the PdO·xH 2 O standard (at 1.5Å) and the Pd standard (at 2.6Å), indicating that both oxidized and metallic Pd were present. This suggests that metallic Pd was present during firing in air -not surprising given that PdO decomposes above 800 • C -and that it was retained even during cooling below 800 • C where PdO is stable [22]. This would occur if large metallic Pd particles were present during high-temperature firing but did not fully oxidize during cooling, consistent with the above TEM observation.…”

Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells

“…In ambient atmosphere where the oxygen partial pressure is 0.21 atm, PdO remains stable until temperature reaches 806 • C. This calculated value is the equilibrium decomposition temperature (T d, eq. ) of PdO in air and is in good agreement with the T d obtained by TGA with an extremely low scan rate [20]. Fig.…”

Natural reducing agents for electroless nanoparticle deposition: Mild synthesis of metal/carbon nanostructured microspheres

“…Since tin remains as Sn 4+ at the surface after sensitization steps [43], we can assume that the excess residual mass consists of SnO 2 [45,46] and Ag 0 or Pd 0 particles. Although both Ag and Pd metal form oxides when heated in air, these oxides decompose at temperatures below 900 °C [47][48][49], the end-point temperature in TGA curves reported in Fig. 4.…”