Bimetallic Mn and Co encased within bamboo-like N-doped carbon nanotubes as efficient oxygen reduction reaction electrocatalysts

Boosted Polysulfide Conversion by Co, Mn Bimetallic-Modulated Nitrogen–Carbon Material for Advanced Lithium–Sulfur Batteries

“…High-resolution TEM (HRTEM) images (Figure 1d . 40 To confirm the percentage composition of S, thermogravimetric analysis (TGA) test analysis is There is no denying that Co/Mn-GC@N−C has a bigger surface area and pore volume, which is owing to the fact that the NaCl molten salt penetrates into the carbon material through the capillary action at high temperature, which promotes the generation of mesopores and the growth of carbon nanotubes. Overall, the increased specific surface area and pore size speed up the catalytic conversion of polysulfides by allowing for the exposure of more active sites.…”

Boosting the oxygen reduction reaction behaviour of atomic Fe–N4active sites in porous honeycomb-like carbonviaP heteroatom doping

“…[6][7][8][9][10][11][12][13] An essential step that signicantly limits the performance of these devices is the cathodic oxygen reduction reaction (ORR), which depends heavily on the electrocatalysts containing platinum group metals (PGMs). [14][15][16][17][18] However, the global reserve scarcity and the prohibitive cost of PGMs are big hurdles. 19,20 Therefore, eliminating PGMs from air cathodes is the most encouraging strategy to meet the ultimate cost target and practical manufacturing.…”

Bimetallic CoNi Alloy Nanoparticles Embedded in Pomegranate-like Nitrogen-Doped Carbon Spheres for Electrocatalytic Oxygen Reduction and Evolution

“…24 Wu et al display that Co−N−C species produced by Co 3 O 4 nanoparticles cooperating with nitrogen atoms act as a bond bridge to link the Co 3 O 4 nanoparticles and N-doped carbon lattice, introducing the extra active sites for the OER. 25 Among the many, transition metal alloys, such as CoFe, 26,27 CoNi, 28 and MnCo, 29 have been attracting much attention due to the superior activity of the individual component and corresponding oxide. Particularly, bimetallic CoNi alloy is a potential candidate among various bimetallic alloys because of its earth abundance instinct and are more conductive and stable than Fe as well as its cost effectiveness.…”

“…Wu et al display that Co–N–C species produced by Co 3 O 4 nanoparticles cooperating with nitrogen atoms act as a bond bridge to link the Co 3 O 4 nanoparticles and N-doped carbon lattice, introducing the extra active sites for the OER . Among the many, transition metal alloys, such as CoFe, , CoNi, and MnCo, have been attracting much attention due to the superior activity of the individual component and corresponding oxide. Particularly, bimetallic CoNi alloy is a potential candidate among various bimetallic alloys because of its earth abundance instinct and are more conductive and stable than Fe as well as its cost effectiveness. , Due to the synergistic effect, CoNi alloy not only provides rich valence state changes with a strong electron coupling but also intrigues the surface properties alternation and the intrinsic polarity shift in the process of oxygen reactions. ,, Bifunctional electrocatalysts combined with bimetallic CoNi alloy and doped carbon enables the kinetics promotion for both OER and ORR.…”