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• W2897976077 endingPage "592" @default.
• W2897976077 startingPage "583" @default.
• W2897976077 abstract "Electrocatalytic hydrogen and oxygen evolutions via water splitting are very demanding in the context of renewable energy and sustainable environment. We first report the synthesis of wormhole-like mesoporous tin oxide (MTO-S) by using sodium lauroyl sarcosinate as structure directing agent under hydrothermal reaction conditions followed by calcination and loading with IrO2 or Pt nanoparticles at its surface by simple wet-chemical methods. These IrO2 and Pt-loaded SnO2 nanomaterials are thoroughly characterized by small and wide-angle powder XRD, nitrogen adsorption/desorption analysis, FTIR, XPS spectroscopy, UHR-TEM, FE-SEM, TG/DTA and NH3-TPD analysis. The electrochemical water splitting measurements of the IrO2 and Pt doped mesoporous SnO2 nanostructured materials suggested fine dispersion of these metal/metal oxide nanoparticles at the mesopore surface and facile electron hopping could enhance the rate of the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activity of IrO2@MTO-S and Pt@MTO-S nanocomposites, respectively. As a result, the IrO2@MTO-S modified electrode exhibits unprecedented OER activity with a very low overpotential of 240 mV at 10 mA cm−2, which is lower than the state-of-the-art catalyst IrO2/C (360 mV) and other reported catalysis. Pt@MTO-S also exhibit excellent HER activity with an ultralow overpotential of 73 mV at 10 mA cm−2. These findings may uncover new opportunities for IrO2@MTO-S and Pt@MTO-S as OER and HER electrocatalysts for future water electrolysis." @default.
• W2897976077 created "2018-10-26" @default.
• W2897976077 creator A5027922078 @default.
• W2897976077 creator A5030153495 @default.
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• W2897976077 creator A5051311801 @default.
• W2897976077 creator A5058635280 @default.
• W2897976077 creator A5066086354 @default.
• W2897976077 date "2018-11-07" @default.
• W2897976077 modified "2023-10-17" @default.
• W2897976077 title "IrO ₂ and Pt Doped Mesoporous SnO ₂ Nanospheres as Efficient Electrocatalysts for the Facile OER and HER" @default.
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• W2897976077 doi "https://doi.org/10.1002/cctc.201801312" @default.

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