One-step hydrothermal synthesis of cobalt–vanadium based nanocomposites as bifunctional catalysts for overall water splitting

Abstract

Cobalt–vanadium bimetal-based nanocomposites with unique laminar structures as bifunctional catalysts can greatly boost overall water splitting.

Novel Co3(1–x)Fe3xV2O8 Nanoparticles as Highly Active and Noble-Metal-Free Electrocatalysts for Oxygen Evolution Reaction

“…In recent years, the OER catalysts based on nonprecious metal have been extensively studied. More importantly, the materials based on transition metal have great development prospects. , In particular, the transition-metal oxides, hydroxides, oxyhydroxides, chalcogenides, and their mixtures including Co and V have been used in electrocatalytic OER. − The presence of V can promote rapid charge transfer and facilitate OER reactivity , and the V-based materials have been widely used because of their excellent OER properties. For example, the Co/VN nanosheets were prepared by ammonia nitridation reaction with Co 2 V 2 O 7 as a precursor, which exhibited excellent OER performance .…”

Bifunctional Catalyst Derived from Sulfur-Doped VMoOx Nanolayer Shelled Co Nanosheets for Efficient Water Splitting

“…A relatively similar behavior of the devices toward overall water splitting was also verified by CV measurement, as shown in Figure S29a. Interestingly, the performance of 2D Co@S-VMoO x NSs-based device surpassed various advanced devices derived from other transition metal-based catalysts such as CoP/HNCNP@2D CoP, Bi 3 (FeO 4 )­(MoO 4 ) 2 , Co 0.2 -VOOH, and so on ,− (Figure g).…”

Mo/Co doped 1T-VS2 nanostructures as a superior bifunctional electrocatalyst for overall water splitting in alkaline media

“…of 778.98 and 793.93 eV are assigned to the 2p 3/2 and 2p 1/2 of Co 2+ , conrming the doping of Co atoms in the VS 2 lattice. 59,60 The peaks at 781.13 and 797.03 eV are attributed to the 2p 3/2 and 2p 1/2 of Co 3+ , respectively, and the remaining two peaks are satellite peaks. The existence of Co 3+ can be attributed to the slight oxidation of the as-synthesized material.…”

“…7D). [67][68][69][70][71][72] Finally, the robustness of the material for electrocatalysis was tested following post-stability FESEM analysis. The FESEM micrograph of 10:MoCo-VS 2 /CC aer the chronoamperometric stability test (Fig.…”