Low-Pt supported on MOF-derived Ni(OH)2 with highly-efficiently electrocatalytic seawater splitting at high current density

Synergistic Low-Pt Modification and Ni Doping Facilitate the MoS2 Phase Transition for Accelerating the Hydrogen Evolution Reaction

“…The TEM image in Figure a shows the petal-like structure of Pt@1T-MoS 2 –Ni, which is consistent with the SEM image (Figure c). Figure b corresponds to the HRTEM image of its orange region, and after fast Fourier transform (FFT) and further structural study, it can be deduced that the (001), (002), and (111) crystal planes of MoS 2 and Pt SAs correspond to the stripe spacings of 0.26, 0.63, and 0.22 nm, , respectively, which is consistent with the XRD results (as shown below). Furthermore, EDS elemental mapping of high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) images of Pt@1T-MoS 2 –Ni (Figure d) shows that the components Mo, S, Ni, and Pt were evenly spread across the nanosheets.…”

“…Global population expansion is happening quickly and the approaching dilemma of fossil fuel scarcity, coupled with the associated pollution issues, , has necessitated urgent efforts toward the development of new clean energy sources. − Hydrogen (H 2 ) is recognized as a clean fuel solution for energy resources because it is nonpolluting, widely available, and has high combustion energy. − In recent years, electrocatalytic water splitting has attracted sustained attention among various hydrogen production technologies, primarily due to its ability to produce high-purity green hydrogen under carbon-free conditions. , However, the hydrogen evolution reaction (HER) exhibits sluggish kinetics in alkaline conditions, necessitating the use of efficient electrocatalysts to trigger proton reduction and improve reaction kinetics. Currently, the Pt metal remains the preferred high-quality electrocatalyst for the HER, emphasizing the need to maximize the available Pt in practical HER electrocatalytic processes. A prospective strategy involves reducing Pt to the atomic level.…”

“…11,12 However, the hydrogen evolution reaction (HER) exhibits sluggish kinetics in alkaline conditions, 13 necessitating the use of efficient electrocatalysts to trigger proton reduction and improve reaction kinetics. Currently, the Pt metal remains the preferred high-quality electrocatalyst for the HER, 14 emphasizing the need to maximize the available Pt in practical HER electrocatalytic processes. A prospective strategy involves reducing Pt to the atomic level.…”

Rapid synthesis of efficient Mo-based electrocatalyst for the hydrogen evolution reaction in alkaline seawater with 11.28% solar-to-hydrogen efficiency

“…[1][2][3] Currently, the production of H 2 by electrochemical seawater splitting has emerged as one of the most promising strategies. [4][5][6][7] Over the past decade, commercial Pt/C has been regarded as the state-of-the-art hydrogen evolution reaction (HER) electrocatalyst in alkaline water splitting. Unfortunately, its high cost and barely satisfactory elemental abundance hampers its large-scale implementation.…”

Ultrafast carbothermal shocking fabrication of cation vacancy-rich Mo doped Ru nanoparticles on carbon nanotubes for high-performance water/seawater electrolysis

“…[1][2][3] Currently, Pt-based catalysts are widelyaccepted high-performance electrocatalysts for hydrogen production due to their suitable Gibbs free energy for hydrogen adsorption (DG H *). 4,5 However, the scarcity severely limits the wide industrialization of Pt-based electrocatalysts in water/ seawater splitting. Furthermore, previous reports have showed that because the oxygen evolution reaction (OER) and chlorine evolution reaction (CER) almost simultaneously occur, electrocatalytic seawater splitting in alkaline solution with a potential lower than 1.72 V RHE could effectively suppress the CER in electrocatalytic seawater splitting.…”