Co-doped MoS₂nanosheet: a stable and pH-universal electrocatalyst for an efficient hydrogen evolution reaction

Abstract

Generally, the hydrogen generation of non-noble metal based electrocatalysts is limited by the high overpotential and acid-base environment of electrolyte. Therefore, it is essential to develop hydrogen evolution reaction (HER)...

Two-Dimensional Nanoarchitectonics for Two-Dimensional Materials: Interfacial Engineering of Transition-Metal Dichalcogenides

“…43 Among the numerous approaches employed to improve the activity of MoS 2 , one effective strategy is heteroatom metal doping in the MoS 2 lattice to improve the number of active sites. Until now, different metal intercalated MoS 2 has been stated, including Co-doped MoS 2 , 44 Ni-doped MoS 2 , 45 Pd-doped MoS 2 , 46 and P-doped MoS 2 . 47 Li and co-workers doped Pt in MoS 2 and achieved a fractional phase transition of MoS 2 from the 2H to 1T phase, leading to enhanced HER performance.…”

Hierarchical Cobalt–Nickel Phosphide/Molybdenum Disulfide Hybrid Electrocatalyst Triggering Efficient Hydrogen Generation in a Wider pH Range

“…Extensive research efforts have been devoted to developing highly efficient and durable nonprecious HER electrocatalysts, such as metal carbides, nitrides, phosphides, or sulfides, as important candidates for noble metals. − Transition metal dichalcogenides (TMDs), especially for MoS 2 , are a promising type of earth-abundant HER electrocatalysts due to their low cost and high catalytic activity. − However, the catalytic activity of MoS 2 is largely hindered due to the catalytically inert basal planes. A large number of regulation strategies including anion/cation doping, vacancy design, heterostructure construction, or morphology modulation have been proven to have unique advantages in increasing the catalytic activity for the HER. − Considering the important value of continuous hydrogen generation in the full pH range, the development of MoS 2 -based electrocatalysts has been the focus of research, but it faces great challenges.…”

2D transition metal-based phospho-chalcogenides and their applications in photocatalytic and electrocatalytic hydrogen evolution reactions

“…34,35 The incorporation of Co and Ni into the MoS 2 matrix was reported to enhance the electrocatalytic activity significantly. 36–38 While alloy phases, MoS x Se 1− x , wherein Se in combination with S, permit tuning of HER activity. 39,40…”

“…34,35 The incorporation of Co and Ni into the MoS 2 matrix was reported to enhance the electrocatalytic activity signicantly. [36][37][38] While alloy phases, MoS x Se 1−x , wherein Se in combination with S, permit tuning of HER activity. 39,40 Akin to TMDCs, 2D transition metal phosphides (TMPs) are reported to show bifunctional properties as HER and oxygen evolution reaction (OER) catalysts and also display long-term stability in a wide pH range.…”