Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route

Effects of calcination temperature and water-washing treatment on n-hexane hydroisomerization behavior of Pt-promoted sulfated zirconia based catalysts

“…Kusakari et al [22] found that the support would influence the hydrogen spillover amount. Another investigation demonstrated that the spiltover hydrogen was stored in the cationic defects of zirconia [23]. Over sulfated Zr(OH) 4 , some H 2 SO 4 strongly interacted with hydroxyl groups and others were only weakly attached on Zr(OH) 4 .…”

Enhanced NO2 sensing characteristics of Pd-functionalized networked In2O3 nanowires

“…2c) and TEM investigations, we surmise that the islands mainly consist of a mixture of Pd and PdO phases. Based on our literature survey, not only has the metal Pd been well known to promote spillover in a variety of gases, including H 2 [47], O 2 [48], and CO [49], but the PdO can also induce spillover of H 2 gas [50]. Accordingly, it is surmised that Pd/PdO can induce the spillover of other gases, including NO 2 gas.…”

Understanding the mechanism of hydrogen uptake at low pressure in carbon/palladium nanostructured composites

“…A known quantity of material was placed in a glass tube and hydrogen was introduced in the system at 0.7 Â 10 À2 bar. The water formed during the reduction reaction of PdO with H 2 [36][37][38][39] was condensed in a second glass tube placed in a nitrogen bath at 77 K. Once the reduction reaction was finished the equilibrium pressure was measured and the quantity of hydrogen consumed was calculated and further related to the quantity of PdO in the composite. The system was calibrated with bulk palladium oxide (99.9%, Sigma-Aldrich) to validate the accuracy of the experimental method ($95%).…”