MoS2 nanoflower incorporated with Au/Pt nanoparticles for highly efficient hydrogen evolution reaction

A facile approach to enhance the hydrogen evolution reaction of electrodeposited MoS2 in acidic solutions

“…The relatively low intensity of the diffraction peaks attributes to the low crystallinity of samples obtained by electrodeposition. 29 Moreover, all labelled peaks could be indexed to diverse planes of 2H-MoS 2 such as 2 θ = 32.6° (100) and 2 θ = 58° (110), which means the Ni–MoS 2 has a similar atomic arrangement as the original 2H-MoS 2 . It should be mentioned that there are no representative peaks with high angle existence, revealing that both the pristine MoS 2 and the Ni–MoS 2 structure may be disordered due to rich surface defects.…”

Single metal atoms catalysts—Promising candidates for next generation energy storage and conversion devices

“…Rise in demand for sustainable energy and control in environment, in response to the ever‐rapid depletion of limited fossil fuels, and at the time the massive exhaust emissions, have pushed for developing clean and green energy, where energy conversion and storage devices are among the key components. They include fuel cells, diverse batteries, supercapacitors, and solar cells 1–9 . It is well known that the operating performance of these devices is strongly dependent on the various electrocatalytic redox reactions involved.…”

“…Therefore, exploiting highly efficient and selective electrocatalysts is the core for realizing these high‐performance energy devices. In the past few years, various types of materials, such as carbon‐based materials, noble metal nanoparticles/clusters, and metal oxides have been widely studied as high‐efficient electrocatalysts 7,8,10–18 . Generally, catalysts could be broadly classified into the homogeneous and heterogeneous catalysts 19 .…”

Superior HER Activity of rGO@AuNRs@SAC-Pt Promoted by Maximized Electronic Interaction and Plasmonic Hot Carriers

“…Hydrogen energy is regarded as one of the new energy sources that may solve the problems of the energy depletion and environmental pollution due to its features of renewability, zero pollution, and high efficiency. Among them, electrocatalytic water splitting to produce hydrogen, which has high hydrogen production efficiency, has attracted extensive attention. − In terms of electrocatalytic hydrogen evolution reaction (HER), although there are a large number of reports of nonplatinum catalysts, their HER performances are yet not comparable to the intrinsic activity of platinum and Pt-based materials that are still considered to be the best electrochemical catalysts for HER. − However, due to the scarcity reserves and high price of Pt, the cost of a Pt-based catalyst will be high, leading to the failure of large-scale commercial use. Therefore, how to reduce the amount of Pt and improve its utilization rate has become a research focus.…”

“…Therefore, how to reduce the amount of Pt and improve its utilization rate has become a research focus. Various methods such as compounding Pt with nonmetal supports, alloying with nonprecious metals, and preparing Pt core–shell catalysts have been proposed to decrease the Pt utilization. ,− However, none of them can precisely control the content and HER activity of Pt. Since only the surface Pt atoms of catalysts prepared by these methods participate in HER, the atom utilization rate is still relatively low.…”