Fabrication of Co doped MoS2 nanosheets with enlarged interlayer spacing as efficient and pH-Universal bifunctional electrocatalyst for overall water splitting

Enhanced Activities in Alkaline Hydrogen and Oxygen Evolution Reactions on MoS2 Electrocatalysts by In‐Plane Sulfur Defects Coupled with Transition Metal Doping

“…All in all, the OER characteristics of Co-S v -MoS 2 are better or comparable to those of recently reported MoS 2 -based electrocatalysts (Table S2, Supporting Information). [7,46,[63][64][65][66][67][68] DFT calculation is carried out to gain insights into the HER and OER activities of the M-S v -MoS 2 electrocatalysts. Based on the structure of the MoS 2 basal plane with S v and dopants, the corresponding two-step HER on the S active sites (M-S) around S v and four-step OER on the doped metal active sites of M-S v -MoS 2 under alkaline conditions are presented in Figure 5a,b.…”

The charge effects on the hydrogen evolution reaction activity of the defected monolayer MoS2

“…40,41 Moreover, due to the synergistic effects of TM doping and chalcogen vacancy, remarkable electrocatalytic performance can be achieved. [42][43][44][45] Such TM atoms possess diverse d orbitals, meaning they can lose or gain different numbers of electrons in different circumstances. The charge states of the catalysts with defect complexes become more elusive, allowing the ability to modulate the electrocatalytic performance by manipulating charge states.…”

Hierarchical CoMoS3.13/MoS2hollow nanosheet arrays as bifunctional electrocatalysts for overall water splitting

“…[21][22][23][24][25] It is worth noting that bimetallic metal sulfides display superior HER and OER performances compared with MoS 2 due to the tailored morphological and electronic effects upon the introduction of 3d transition metals (i.e., Co, Fe, or Ni). [26][27][28][29][30] In particular, a combination of MoS 2 and Co usually possesses excellent catalytic activity compared with Fe or Ni. A synergistic effect between MoS 2 and Co can adjust the electronic structure of MoS 2 and regulate the electron density of Mo, enhancing the HER kinetics efficiently and exposing more reactive sites for the OER, thus leading to remarkable bifunctional activity.…”

“…, Co, Fe, or Ni). 26–30 In particular, a combination of MoS 2 and Co usually possesses excellent catalytic activity compared with Fe or Ni. A synergistic effect between MoS 2 and Co can adjust the electronic structure of MoS 2 and regulate the electron density of Mo, enhancing the HER kinetics efficiently and exposing more reactive sites for the OER, thus leading to remarkable bifunctional activity.…”