High surface area MnO₂nanomaterials synthesized by selective cation dissolution for efficient water oxidation

Abstract

Artificial photosynthesis is a promising method that directly transforms solar energy into chemical energy. To achieve artificial photosynthesis, efficient water oxidation catalysts (WOCs) are essential. In nature, the manganese-oxo-calcium cluster...

Microflower-like Co9S8@MoS2 heterostructure as an efficient bifunctional catalyst for overall water splitting

“…8–10 Consequently, it is tremendously desirable to prepare high-efficiency and low-cost bifunctional catalysts for overall water splitting. 11,12…”

“…[8][9][10] Consequently, it is tremendously desirable to prepare high-efficiency and low-cost bifunctional catalysts for overall water splitting. 11,12 Recently, various investigations have shown that MoS 2 is a promising candidate for the HER. [13][14][15][16] However, MoS 2 also has drawbacks such as covering of active sites, poor conductivity, and low OER performance.…”

Effect of Different Metal Ions between Nanolayers of Manganese Oxide for Water Oxidation Reaction under Acidic Conditions

“…Some research groups investigated the effects of other ions on layered Mn oxide to investigate its structure or catalytic activity. − These effects include inducing Mn­(III), modifying the chemical and electronical properties of layered Mn oxide, enhancing charge mobility, and tuning the electronic structure. − …”

Boosting alkaline water splitting and the urea electrolysis kinetic process of a Co3O4 nanosheet by electronic structure modulation of F, P co-doping

“…4 It involves two reaction steps: a hydrogen evolution reaction (HER) and an oxygen evolution reaction (OER). [5][6][7] However, an anodic oxygen evolution reaction involves the transfer of four electrons, 8 and the reaction kinetics is very slow. Due to the inevitable overpotential generated by the two electrodes, the cell voltage of electrolytic water far exceeds the theoretical voltage of 1.23 V, which is unfavorable for energy saving hydrogen production.…”

“…Wu's team achieved gradient optimization of the electronic spin state of the material through stress action. 35 The change of Co 3+ from a low spin state (LS T 6 2g e 0 g ) to an intermediate spin state (IS T 5 2g e 1 g ) is induced by stress, and the change of the spin state leads to the change of the e g electron filling state, electrical conductivity and reaction adsorption free energy, thus adjusting the catalytic performance of the OER. Gao et al successfully prepared a 3D NiFe LDH microtubule structure rich in oxygen defects.…”