Controlling the Co–S coordination environment in Co-doped WS₂ nanosheets for electrochemical oxygen reduction

Abstract

Cobalt sulfide nanomaterials are among the most active and stable catalysts for the electrocatalytic oxygen reduction reaction in pH 7 electrolyte. However, due to the complexity and dynamism of the...

Metal–Support Interactions in Molecular Single-Site Cluster Catalysts

“…For instance, the coordination environment of single Rh atoms installed at edge vacancies of MoS 2 nanosheets and the charge transfer between the active sites and the support impart optimal stability and high selectivity for aldehyde hydrogenation . In a more molecularly inspired approach, tuning the number of bonds between surface-anchored Co active sites and the WS 2 nanosheet support facilitates increased activity for the electrochemical oxygen reduction . More broadly, the interaction between surface or edge metal dopants and layered transition metal dichalcogenide supports has been extensively investigated in the context of identifying catalysts for industrially relevant processes, such as hydrotreatment and hydrogen evolution (Figure A) .…”

Hexagonal NiMoO4-MoS2 nanosheet heterostructure as a bifunctional electrocatalyst for urea oxidation assisted overall water electrolysis

“…Lately, low-priced and sustainable bifunctional electrocatalysts have attracted a whole lot of interest to accelerate the industrialization process of monolithic water splitting. [8][9][10] Currently, non-precious metals [11][12][13][14][15] and oxide, [16][17][18][19][20][21] hydroxyl oxide, [22][23][24] sulfide, [25][26][27][28] phosphide, [29][30][31] and sulfide doping [32][33][34][35] make the catalytic overall performance and balance of the electrocatalysts substantially improve. While growth has occurred, the improvement of bifunctional electrocatalysts is nevertheless challenging.…”

Heterostructuring cobalt sulfide with highly oxophilic 1T-tungsten sulfide for durable and efficient oxygen electrocatalysis

“…Considering the aforementioned analysis, integrating nonlayered suldes with layered suldes may synergistically strengthen the adsorption of oxygen intermediates and hinder the oxidation of underlying rst-row transition metal suldes, and it is a promising approach for promoting oxygen electrocatalysis, 31,32 especially for 1T-phase layered suldes that with metallic features are capable of enhancing the capability of electron/charge transfer. 18,33 Herein, we have designed a CoS/1T-WS 2 heterostructure supported by carbon nanocubes for oxygen electrocatalysis.…”