Table 3 Vibrational assignments of PN) blend, and PNV series - PVA: naalg: NH4VO3 (5, 10, 15, 20 wt%) polymer blend electrolytes.

From: Ionic transport of proton-conducting ammonium vanadate salt in blends of polyvinyl alcohol and sodium alginate for electrochemical applications

Vibrational mode

Band assignments

NaAlg (cm⁻¹)

PVA (cm⁻¹)

NaAlg: PVA (PN) (cm⁻¹)

NaAlg: PVA: NH₄VO₃ (PNV series) (cm⁻¹)

O–H stretching

~ 3280

~ 3286

~ 3309

~ 3309

C–H stretching

–

~ 2917

~ 2916

~ 2916

C = O stretching

~ 1720

–

~ 1725

~ 1725

COO⁻ asymmetric stretching

~ 1540

–

–

~ 1594

CH₂ bending

~ 1421

~ 1418

~ 1418

~ 1418

C–O–C stretching

~ 1125

1249,1091,1029

1252, 1086, 1025

1252, 1086, 1025

C–C bending

–

~ 929

~ 929

~ 929

C–H bending

–

~ 838

~ 838

~ 838

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