Significant role of Mn(III) sites in eg1 configuration in manganese oxide catalysts for efficient artificial water oxidation

Boosting Electrochemical Water Oxidation with Metal Hydroxide Carbonate Templated Prussian Blue Analogues

“…[1] Electrochemical water splitting to generate oxygen and hydrogen is considered as the promising way for the sustainable energy conversion. [3] Though noble metal catalysts like IrO 2 and RuO 2 produce good activity in the OER, scarcity and high cost limits their large-scale applications. [3] Though noble metal catalysts like IrO 2 and RuO 2 produce good activity in the OER, scarcity and high cost limits their large-scale applications.…”

“…[2] Theo xygen evolution reaction (OER) is at hermodynamically uphill reaction (237 kJ mol À1 )aswell as akinetic bottleneck involving several high-energy intermediates. [3] Though noble metal catalysts like IrO 2 and RuO 2 produce good activity in the OER, scarcity and high cost limits their large-scale applications. [4] In this respect, efficient water oxidation catalysts with earth-abundant elements attain major attention in recent years.…”

A Single‐Source Precursor Approach to Self‐Supported Nickel–Manganese‐Based Catalysts with Improved Stability for Effective Low‐Temperature Dry Reforming of Methane

“…The benefitofusing the SSP approachhas been demonstrated previously by our group. [39][40][41][42][43][44] This route not only includes the low-temperature synthesis of ad esigned materialb ut also enables definite control over its compositionw ith maximum dispersion of the elements on the atomic level as well as control over the oxidation states of the metalst hrough the molecular architecture of the precursor and the appliedr eaction conditions. In addition, the mixinga tt he molecular level assures product homogeneity.F urthermore,t he anticipated degradation of such SSPs can lead to unusual and desirable structural features in the final products such as high surface area, low density,a nd the formation of metastable phases with the possibility of tuning their electronic properties.…”

“…This method has already been well established for amorphous conducting oxides that have shown long-term stability along with high optoelectronic performance. [39,40] The mixed nickel-manganesea nd nickel oxalate SSPs can be synthesized by the microemulsion approacht hrough variation in the amount of nickel relative to the amount of manganese. The resulting NiMn oxalates and Ni oxalates were first subjected to thermal degradation in the presence of oxygen to form mixed nickel-manganese( Ni 2 MnO 4 and Ni 6 MnO 8 )a nd nickel oxides (NiO) which were subsequently treated in H 2 to form mixed phases of Ni/NiO/MnO and Ni/NiO.T hese systems were found to be efficient DRM catalysts as well as stable at the reaction temperature for several hours.…”

Nano-sized Mn3O4 and β-MnOOH from the decomposition of β-cyclodextrin–Mn: 1. Synthesis and characterization

“…Solvothermal [15,16], decomposition [17], oxidation/ reduction [18,19], polymeric-precursor [20] and surfactantmediated routes [21] are among popular methods to synthesize Mn oxides. The compounds can be used for different applications [2][3][4][5][6][7][8][9][10][22][23][24].…”