Incorporation and characterisation of oxides of manganese, cobalt and lithium into Nafion 117 membranes

Electrochemical fabrication of Cu(OH)2 and CuO nanostructures and their catalytic property

“…The peak at 280.9 cm À 1 shows 11.1 cm À 1 red-shift compared with that (292 cm À 1 ) of bulk Cu(OH) 2 crystals [29]. Analogous results have been observed preciously and attributed to the effect of phonons confinements [30,31].…”

Formation of (FexMn2−x)O3 solid solution and high sulfur capacity properties of Mn-based/M41 sorbents for hot coal gas desulfurization

“…When manganese oxide was loaded on M41 by a sol-gel method, as shown in Fig. 5b, the LRS band at 662 cm −1 was shifted to 652 cm −1 and broadened significantly due to high dispersion of Mn 2 O 3 /Mn 3 O 4 particles over M41, this phenomenon was also observed by Zuo et al [41,42]. Based on LRS band of Mn 2 O 3 /SBA-15 and pure bulk Mn 2 O 3 reported by Han et al [36], the band at 504 cm −1 was related to the asymmetric stretch of Mn O Mn bond of supported Mn 2 O 3 species.…”

Nafion®–polybenzimidazole (PBI) composite membranes for DMFC applications

“…Nafion® 117 was purchased from E.I. du Pont de Nemours and purified using a procedure used by Ludvigsson et al [21] whereby the membranes were first boiled for 1 h first in 10% H 2 O 2 , then for 1 h in water, followed by 1 h in 0.2 M H 2 SO 4 and finally for 1 h in water.…”