Boosting electrochemical performance of activated carbon by tuning effective pores and synergistic effects of active species

Gadolinium Changes the Local Electron Densities of Nickel 3d Orbitals for Efficient Electrocatalytic CO2 Reduction

“…Figure 2a shows that all samples own the broad graphite ( 002) and (100) diffraction peaks located at around 25°and 43°, respectively. [25] The similar graphitized structures of these samples suggest that the doped heteroatoms have no effect on the graphitized structures deep inside CB, therefore guaranteeing the stability of sample skeletons. [21] The changes of graphitized structures in the surface layers of CB can be analyzed by the Raman spectra in detail.…”

“…The crystalline structures of the samples were further investigated by the X‐ray diffraction (XRD) and Raman spectra. Figure 2a shows that all samples own the broad graphite (002) and (100) diffraction peaks located at around 25° and 43°, respectively [25] . The similar graphitized structures of these samples suggest that the doped heteroatoms have no effect on the graphitized structures deep inside CB, therefore guaranteeing the stability of sample skeletons [21] .…”

Ultrasonic synthesis of Mn-Ni-Fe tri-metallic oxide anchored on polymer-grafted conductive carbon for rechargeable zinc-air battery

“…The electrolyte comprising 0.2 M Zn(ac) 2 and 6.0 M KOH was circulated by a peristaltic pump. The specific capacity was calculated by the following equation [26] : where I is current (mA), C s is specific capacity (mAh g −1 ), Δ t is time from the beginning until zinc was totally consumed (s), m Zn is the consumed zinc mass (g).…”

Mechanochemical Transformations of Biomass into Functional Materials

“…Using the same method, cantaloupe peels were heated at 400 °C followed by ball milling with melamine. The mixture was then pyrolyzed and processed to obtain nitrogen‐doped porous carbon with excellent performance in both oxygen reduction reaction and three‐electrode supercapacitor measurement [515] . In the examples above, a thermal treatment was the key to the transformation, with mechanochemistry acting as a pretreatment or a workup to achieve the desired compound.…”