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Phone: (843) 588-2001
Edgar Allan Poe/Sullivan's Island Library
Closed for renovations
Phone: (843) 883-3914
West Ashley Library
9 a.m. – 7 p.m.
Phone: (843) 766-6635
Wando Mount Pleasant Library
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Phone: (843) 805-6888
Village Library
9 a.m. – 6 p.m.
Phone: (843) 884-9741
St. Paul's/Hollywood Library
9 a.m. – 8 p.m.
Phone: (843) 889-3300
Otranto Road Library
9 a.m. – 8 p.m.
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9 a.m. – 8 p.m.
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Phone: (843) 805-6930
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Stable H2O2 electrosynthesis at industrially-relevant currents by a membrane-based electrode with high oxygen accessibility.
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- Author(s): Liu, Zimou1,2 (AUTHOR); Li, Kuiling1,2 (AUTHOR); Liu, Lie3 (AUTHOR); Song, Hang1,2 (AUTHOR); Zhang, Yong1,2 (AUTHOR); Tebyetekerwa, Mike4 (AUTHOR); Zhang, Xiwang1,4 (AUTHOR) ; Wang, Ke1 (AUTHOR); Xu, Lili1,2 (AUTHOR); Wang, Jun1,2 (AUTHOR)
- Source:
Applied Catalysis B: Environmental. Nov2024, Vol. 357, pN.PAG-N.PAG. 1p.- Subject Terms:
- Source:
- Additional Information
- Abstract: Electrosynthesis of hydrogen peroxide (H 2 O 2) presents a sustainable alternative to the anthraquinone process, while the transition to applying this process at industrial-relevant currents remains a significant challenge. Most studies tried to solve it by catalysts modulations, whereas we found that the accessibility to the gaseous O 2 , might be the crux of this matter. Herein, we developed a series of membrane-based gas diffusion electrodes (Mem-GDEs) with varied O 2 accessibility. Their endurable currents were found to be well correlated with the O 2 mass transferability. By constructing high O 2 -accessible triphasic interfaces, Mem-GDE achieved a recorded current density, 1.4 A cm−2, with the current efficiency higher than 80.6 %. It was also verified for the first time that the insufficient O 2 triggered a severe flooding problem and thus further deteriorate the O 2 mass transfer. This study highlights the importance of O 2 accessibility and provides new insights into triphasic interfaces construction for realizing industrial-used H 2 O 2 -generated electrodes. [Display omitted] • Mem-GDE with high O2 accessibility was fabricated by employing a PTFE membrane. • The Mem-GDE has great stability in producing H2O2 at industrial current densities. • Severe flooding can be triggered by the deficiency of O2 supply. • The Mem-GDE has great potential for long-term application for contaminant removal. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Applied Catalysis B: Environmental is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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