Electrocatalysts: 2D Transition Metal Dichalcogenides: Design, Modulation, and Challenges in Electrocatalysis (Adv. Mater. 6/2021)

Abstract

In article number 1907818, Bo Song and co‐workers summarize the recent advances regarding the preparation and modulation strategies of electrocatalysts based on 2D transition metal dichalcogenides (TMDs). 2D TMDs are promising candidates for electrocatalytic water splitting, and the produced hydrogen (H2) and oxygen (O2) could be well utilized as continual power supply for space craft and life‐support system for astronauts, respectively. 2D‐TMDs‐based electrocatalysts with excellent catalytic performance could provide a promising solution for future interstellar exploration, such as to Mars.

Tungsten Disulfide‐Interfacing Nickel‐Porphyrin For Photo‐Enhanced Electrocatalytic Water Oxidation

“…Transition metal dichalcogenides (TMDs) have received attention as an alternative to noble-metal electrocatalysts (Pd, Pt/ C to name but a few) and have shown their potential, mainly for catalyzing HER, which has been attributed to their highly reactive, edge-located active sites. [3] Tungsten disulfide (WS 2 ), a core member of the TMDs family, has emerged as a potential substrate for the development of cutting-edge electrocatalysts, especially for water splitting. [4] Exfoliation of bulk material to either phase (2H or 1T) reduces aggregation which mainly, among other problems, leads to lower number of active sites and less active surface area.…”

Recent Progress of Nanostructured Sensing Materials from 0D to 3D: Overview of Structure–Property‐Application Relationship for Gas Sensors

“…[ 177 ] By exfoliation technique or CVD growth, the TMDs with different number of layers and surface properties can be prepared to alter the physics/chemistry characteristics. [ 178 ] The tunable layer‐dependent electronic performances and high surface sensitivity suggest potential gas sensing application.…”

Time-dependent exfoliation study of MoS2 for its use as a cathode material in high-performance hybrid supercapacitors

“…They come under the broad spectrum of 2D materials having the space group P6 3 /mmc. 1,2 In these materials, the layers of the covalently bonded in-plane atoms are attached through weak van der Waals forces. Therefore, the application of an external force can lead to the exfoliation of these weakly bonded 2D layers.…”