Poly[bis­(dimethyl­ammonium) [bis­(dimethyl­amine-κN)tris­(μ2-terephthalato-κ2 O 1:O 4)dizinc(II)] N,N-dimethyl­formamide disolvate hexa­hydrate]

The title compound, {(C2H8N)2[Zn2(C8H4O4)3(C2H7N)2]·2C3H7NO·6H2O}n, consists of two-dimensional non-inter­penetrated sheets with 63 topology, which are stacked together in an …ABAB… packing mode along the c axis. The distance between adjacent A and B sheets is ca 7.3 Å. In the structure, the ZnII center is coordinated by three O atoms from three terephthalate groups and one N atom from one dimethyl­amine ligand, adopting a distorted tetra­hedral geometry. All solvent water mol­ecules are disordered. In the structure, N—H⋯O and O—H⋯O hydrogen bonds are observed

Electrochemical codeposition of nickel oxide and polyaniline

Nickel oxide (NiOx) and polyaniline (PAni) were electrocodeposited from NiSO4 and aniline through cyclic voltammetric scans to afford PAni–NiOx composite film at controlled pH environment. The electrochemical activities of the film were investigated by cyclic voltammetry in 0.1 M NaOH and 0.1 M H2SO4, respectively. Typical redox couples of PAni in 0.1 M H2SO4 appeared at approximately 0.2 and 0.4 V vs. saturated calomel electrode (SCE); Ni(II)/Ni(III) redox couple was observed at approximately 0.4 V vs. SCE in 0.1 M NaOH. The morphologies and elemental components of the films were inspected by scanning electron microscopy and energy dispersive X-ray diffraction. The stability of nickel oxide in the films was found to be enhanced against acidic environments. Electrochemical catalytic behavior of NiOx within the composite film was conserved and demonstrated by catalytic oxidation of methanol and ethanol