Manganese(II) Phosphate

Manganese(II) phosphate is an inorganic compound with the chemical formula Mn3(PO4)2. It is an essential element for the production of steel and other metals. The manganese phosphate coatings are widely used in aerospace, oil and gas industry, anti-galling and bearings. They are also known for providing excellent corrosion protection.

Manganese(II) phosphate nanosheets were designed and synthesized to stabilize a key intermediate in the oxidation of water. This intermediate is Jahn-Teller distorted. In this way, the structural flexibility of the phosphate polyhedron induces a less ordered geometry of the Mn crystal. Moreover, the out-of-plane Mn centers are preferential sites for oxidation.

MnPi has a higher catalytic performance than MnO. Several studies have been performed on the mechanism of pre-catalysis and OER activity. These include the structural, molecular and spectroscopic aspects.

X-ray spectroscopy has been used to examine the elemental distributions of the Mn-LNPs. It was found that the carbon and nitrogen content in MnPi is relatively lower than in MnO. However, a significant reduction in the N content was observed in the MnPi crystal.

Furthermore, the phosphate and aqua ligands are vital for proton transfer. Hence, the phosphate ions have a negative three charge. Their electrical conductivity is very low.

The sonication-derived nanosheets were then assembled into a 3D superstructure. The asymmetric out-of-plane Mn centers stabilized the key MnIII intermediate.

Manganese phosphate self-assembled carbon networks can be used as efficient electrochemical catalysts for relay catalysis. They are highly sensitive to changes in the surrounding environment. Therefore, they can be used for real-time monitoring of superoxide anions released from HepG2 cells.

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