Synthesis of binder-free MoSe2 nanoflakes as a new electrode for electrocatalytic hydrogen evolution

MoSe2 Nanosheets with Tuneable Optical Properties for Broadband Visible Light Photodetection

“…Using hydrazine solution, MoSe 2 nanoflakes of 14 nm thickness are prepared by Barough et al for electrocatalytic hydrogen evolution application. 12 powder, and toxic hydrazine hydrate as the reducing agent for removal of the rhodamine B dye. 13 There are many reports on solution-processed MoS 2 -based photodetectors.…”

“…Usually, surfactants have detrimental effect on further study of as-synthesized 2D material in catalysis and electronic device applications. Using hydrazine solution, MoSe 2 nanoflakes of 14 nm thickness are prepared by Barough et al for electrocatalytic hydrogen evolution application . Controlling the thickness of MoSe 2 flakes by changing the alkyl chain length of alcohol in the solvent-thermal method, flowerlike MoSe 2 nanospheres with an average size of 200 nm were synthesized from Se, MoO 3 powder, and toxic hydrazine hydrate as the reducing agent for removal of the rhodamine B dye .…”

Atomic Layer Deposition of MoSe2 Nanosheets on TiO2 Nanotube Arrays for Photocatalytic Dye Degradation and Electrocatalytic Hydrogen Evolution

“…To date, different methods have been reported for the synthesis of nanostructured MoSe 2 such as, hydrothermal, − ,,,,,,− solvothermal, ,, liquid exfoliation, , electrodeposition, , hot filament vapor chemical deposition, chemical vapor deposition, − , electrochemical atomic layer deposition, and atomic layer deposition (ALD). − Most methods reported successful MoSe 2 synthesis yet also display diverse limitations in controlling the key parameters, such as the morphology, the composition, and the homogeneity of the synthesized MoSe 2 . In contrast, ALD is a well-established bottom-up deposition technique based on alternating gas-surface self-limited reactions using vapor-phase precursors that offers an unparalleled control over the thickness and the composition of the materials deposited .…”

“…These intrinsic limitations are addressed by the fabrication of hybrid nanostructures using supporting materials for enhancing electron transfer and charge carrier recombination rate. Diverse substrates have been utilized to host MoSe 2 and improve the electrocatalytic properties, including carbon nanotubes, carbon nanofibers, graphene, , fluorine-doped tin oxide, perovskites, SnO 2 nanotubes, core–shell MoO 2 /MoSe 2 nanostructures, and TiO 2 nanotubes and nanoparticles. , On the other hand, as the electrocatalytic activity is mainly ascribed to unsaturated Se edge atoms, the growth of vertically oriented few-layer MoSe 2 nanosheets, maximizing the number of exposed Se edges and facilitating ion/electrolyte transport, would greatly enhance the MoSe 2 catalytic performance …”

“…41,42 On the other hand, as the electrocatalytic activity is mainly ascribed to unsaturated Se edge atoms, the growth of vertically oriented few-layer MoSe2 nanosheets, maximizing the number of exposed Se edges and facilitating ion/electrolyte transport through, would drive to a great enhancement of the MoSe2 catalytic performance. 43 To date, different methods have been reported for the synthesis of nanostructured MoSe2 such as, hydrothermal, [20][21][22]28,29,35,37,42,[44][45][46][47][48] solvothermal, 33,34,39 liquid exfoliation, 26,49 electrodeposition, 19,41 hot filament vapor chemical deposition, 50 chemical vapor deposition, [23][24][25]51 electrochemical atomic layer deposition, 52 and atomic layer deposition. [53][54][55] Most methods reported successful MoSe2 synthesis, yet also display diverse limitations in controlling key parameters, such as the morphology, the composition and the homogeneity of the synthesized MoSe2.…”