Facile grafting strategy synthesis of single-atom electrocatalyst with enhanced ORR performance

N-doped carbon nanotubes supported CoSe2 nanoparticles: A highly efficient and stable catalyst for H2O2 electrosynthesis in acidic media

“…However, today's increasing market demand and environmental issues necessitate green and energy-saving alternatives to traditional anthraquinone process (safety hazards, substantial byproducts, and energyintensive purification procedures) for H2O2 production [5][6][7][8]. Electrocatalytic O2 reduction reaction (ORR) can convert O2 to H2O2 with simplicity and low environmental impact, while its practical applications need efficient catalyst to improve selectivity toward H2O2 product via two-electron ORR (2e − ORR) and boost the reaction kinetics [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Encouragingly, efficient H2O2 electrosynthesis is achieved with a series of catalysts, most of which operate under alkaline conditions [16][17][18][19][20][21].…”

Fe atoms anchored on defective nitrogen doped hollow carbon spheres as efficient electrocatalysts for oxygen reduction reaction

“…Latest demonstrations reveal that single metal atoms coordinated with nitrogen forming M-Nx sites serve as the active centers for ORR, particularly Fe and Co-based catalysts [12,13]. Strategies to improve the performance of single-atom catalysts are widely investigated such as increasing the density of active sites, enhancing the intrinsic activity of catalyst by the construction of bi-metal or tri-metal active sites or regulation of coordination environment of active sites [6,[14][15][16][17]. Introduction of intrinsic defects is identified as effective method to tune the coordination structure of single active site [18][19][20][21].…”

Insights into efficient transition metal-nitrogen/carbon oxygen reduction electrocatalysts

“…For example, Ding at al. [146] designed a surface-grafting method to directly synthesize an atomically dispersed Fe-N 4 /C catalyst to boost ORR in acid conditions. Benefitted from the advantage of grafting effect between metal macrocyclic compound precursors and oxygencontaining functional groups, the metal species were chemically fixed by the covalent bonds and strongly anchored as efficient active sites.…”