Polyoxotungstate Featuring Zinc-Ion-Triggered Structural Transformation as An Efficient Electrolyte Additive for Aqueous Zinc-Ion Batteries.

It is promising but still challenging for the widespread application of aqueous zinc batteries due to the poor reversibility of the zinc anode caused by prevalent dendrite growth and pronounced interfacial side reactions. Herein, we report a rare soluble and water-stable high-nuclearity {NdSiW} polyoxotungstate. Interestingly, upon encountering Zn ions, the discrete {NdSiW} nanocluster undergoes a structural transformation to form an infinitely extended cluster-based {[Zn(HO)][NdSiW]} two-dimensional honeycomb layer, with which atomic-level Zn ion effects in reconstructing the layer are determined.

Determination of nitrite using sensors based on nickel phthalocyanine polymer modified electrodes.

An amperometric nitrite sensor based on a polymeric nikel tetraaminothphalocyanine (p-NiTAPc) film coated glassy carbon (GC) electrode was developed. The mechanism of catalysis on the surface of the electrode was discussed. The sensor exhibited fast respond towards nitrite with a detection limit of 1x10(-7)M and a linear concentration range of 5x10(-7) to 8x10(-3)M.

4-Thioxo-3,5-dithia-1,7-hepta-nedioic acid.

The complete molecule of the title compound, C(5)H(6)O(4)S(3), is generated by crystallographic twofold symmetry with the C=S group lying on the rotation axis. The molecules are linked through weak hydrogen-bond contacts by glide-plane operations to form R(2) (2)(20) rings and ladder-like C(4) chains along the c axis.