An Effective Way to Improve Bifunctional Electrocatalyst Activity of Manganese Oxide via Control of Bond Competition

Biosynthesis and characterization of magnesium oxide and manganese dioxide nanoparticles using Matricaria chamomilla L. extract and its inhibitory effect on Acidovorax oryzae strain RS-2

“…Magnesium oxide (MgO) nanoparticles have gained the interest of most scientist because of its low cost and ecofriendliness which has found usefulness as a catalyst for organic dyes degradation, photocatalytic, anticancer and antimicrobial activity due to its surface chemical activity [8][9][10][11]. For manganese oxide nanoparticles, its electro-catalyst property, antimicrobial activity and its use as a fluorescence probe for glucose detection have been reported [12][13][14].…”

Synergistic Control of Structural Disorder and Surface Bonding Nature to Optimize the Functionality of Manganese Oxide as an Electrocatalyst and a Cathode for Li–O2 Batteries

“…A great deal of research efforts has been devoted to exploring oxygen electrocatalysts because of their usefulness in many renewable energy‐generating devices such as metal–O 2 batteries, water electrolyzers, photoelectrochemical cells, etc . The necessity of the simultaneous transfer of four electrons makes oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) processes very sluggish . Since most of efficient oxygen electrocatalysts contain highly expensive and rare noble metals like Ir and Ru, there have been intense research activities for replacing these precious materials by economically feasible and abundant materials .…”

“…Since most of efficient oxygen electrocatalysts contain highly expensive and rare noble metals like Ir and Ru, there have been intense research activities for replacing these precious materials by economically feasible and abundant materials . One of the most promising alternatives is the oxides and hydroxides of 3d transition metal elements . In comparison with other 3d transition metals, the low cost and rich abundance of manganese render Mn‐based compounds promising alternatives for noble metal‐containing electrocatalysts, which evokes intense research efforts for their application as oxygen electrocatalysts .…”

“…One of the most promising alternatives is the oxides and hydroxides of 3d transition metal elements . In comparison with other 3d transition metals, the low cost and rich abundance of manganese render Mn‐based compounds promising alternatives for noble metal‐containing electrocatalysts, which evokes intense research efforts for their application as oxygen electrocatalysts . Despite intense research activities devoted for manganese oxide‐based electrocatalysts, oxygen electrocatalyst activities of these materials still remain far inferior to those of commercial RuO 2 and Ir/C .…”

1D Composite Nanorods of Cobalt Phosphide‐Cobalt Sulfide with Improved Electrocatalyst Performance

“…Electrocatalytic Activity Measurement The HER electrocatalyst performances of the present materials were tested using a standard three electrode electrochemical cell, in which a Pt wire, a saturated calomel electrode (SCE), and a glassy carbon (GC) electrode were utilized as the counter electrode, reference electrode, and working electrode, respectively. The catalyst ink was obtained by dispersing 7 mg of active material, 3 mg of carbon black (Vulcan‐XC72R), and 25 μL of a 5 wt % Nafion solution (Sigma‐Aldrich) in an isopropanol/water (1/4, vol/vol) mixed solvent with sonication for 1 h. 10 μL of the catalyst ink was coated on a GC electrode . LSV was measured in N 2 ‐saturated 0.5 M H 2 SO 4 and 1 M KOH electrolytes with a scan rate of 5 mV s −1 on IVIUM analyzer.…”