Electrocatalytic sulfion recycling assisted energy-saving hydrogen production using CuCo-based nanosheet arrays

Yu, Hongjie; Wang, Wenxin; Mao, Qiqi; Deng, Kai; Xu, You; Wang, Ziqiang; Li, Xiaonian; Wang, Hongjing; Wang, Liang

doi:10.1039/d2ta08730h

Cited by 10 publications

(8 citation statements)

References 48 publications

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“…HER plays a pivotal role in the hydrogen energy cycle and has gained substantial attention as a sustainable method for hydrogen production. [156][157][158][159][160] The cathode reaction in water electrolysis is a crucial component of this process. Hydrogen fuel cells and related technologies have garnered significant interest due to their high energy conversion efficiency and environmentally friendly characteristics.…”

Section: Hermentioning

confidence: 99%

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Xu,

Wang,

et al. 2023

Advanced Energy Materials

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Buckminsterfullerene (C60) and derivatives are significant in the synthesis of efficient electrocatalysts and photocatalysts. This is because of electron acceptor properties and distinctive heterostructure(s) and physicochemical characteristics. High‐performance electrocatalysts and photocatalysts are important therefore in conversions for clean energy. Here a critical assessment of advances in use of C60 and derivatives as heterostructures and “electron buffers” in catalysts are reported. Methodologies for preparing C60 composite catalysts are assessed and categorized and microscopic mechanisms for boosting catalytic performance through C60 and derivatives in important catalytic materials including, semiconductors, carbon‐based metal‐free materials, metal nanoclusters, single atoms, and metal–organic skeletons are established. Important characterizations used with C60 and derivative composites are contrasted and assessed and practical challenges to development are determined. A prospective on future directions and likely outcomes in development of high efficiency electrocatalysts and photocatalysts is provided. It is concluded that C60 and derivatives are advantageous for advanced electrocatalysts and photocatalysts with high structural integrity and boosted electron transport. The findings are expected to be of interest and benefit to researchers and manufacturers for formation of heterostructures and electron buffer areas for significantly boosted catalytic performance.

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Section: Hermentioning

confidence: 99%

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Xu,

Wang,

et al. 2023

Advanced Energy Materials

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“…Specifically, the sulfion oxidation reaction (SOR, S 2– → S + 2e – , E θ = −0.48 V vs SHE) with low oxidation potential and fast kinetics is an attractive alternative to OER. On the other hand, the recovery of H 2 S or S 2– as a common pollutant will greatly improve the living environment. , Compared with the high-temperature desulfurization of the Claus process in the industry, the electrolysis method can easily appreciate toxic substances into high-value sulfur under simple operation. , Therefore, coupling HER with more favorable SOR can achieve high-value products with low energy consumption and no pollution emission. − …”

Section: Introductionmentioning

confidence: 99%

Bifunctional Cobalt–Nickel Sulfide Nanoflowers as Electrocatalysts for Concurrent Energy-Efficient Hydrogen Production and Sulfur Recycling

Wang,

et al. 2023

ACS Appl. Nano Mater.

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Electrocatalytic water splitting is an important approach for sustainable and green production of hydrogen but is greatly hampered by the sluggish oxygen evolution reaction (OER). Therefore, developing a favorable alternative reaction to replace OER for both energy-efficient coproduction of hydrogen and value-added chemicals is highly desirable. Herein, a thermodynamically favorable sulfion oxidation reaction (SOR) electrocatalyzed by CoNi2S4 nanoflowers (CoNi2S4 NFs) is reported to couple with the hydrogen evolution reaction (HER) for energy-efficient hydrogen production and sulfur recovery. In this coupled system, only a low cell voltage of 0.3 V is required to produce hydrogen at 10 mA cm–2, much lower than that of water splitting (1.76 V). Meanwhile, S2– ions are selectively electrooxidized to sulfur with a high yield of 220.5 g h–1 m–2, realizing electrochemical upcycling of sulfur-containing pollutants. This strategy provides an attractive route for both energy-effective hydrogen generation and sulfur recycling.

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“…Recent studies demonstrate that transition-metal sulfides exhibit strong resistance to poisoning. 26,[34][35][36] In particular, cobalt sulfides show high electrocatalytic performance for the SOR. 37 Meanwhile, compared to mono-metallic cobalt-based sulfides, the addition of a second transition metal (especially the Mo species) would adjust the electronic structure of cobalt sulfides and improve their stability and electrochemical activity.…”

Section: Introductionmentioning

confidence: 99%

Mo-doped cobaltous sulfide nanosheet arrays as efficient catalysts for the sulfion oxidation reaction promoting hydrogen production with ultra-low electric energy consumption

Tang,

Zhang,

et al. 2023

Inorg. Chem. Front.

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Electrocatalytic sulfion recycling assisted energy-saving hydrogen production using CuCo-based nanosheet arrays

Abstract: Establishing an efficient and cost-effective hydrogen production system is an important part of facilitating the energy mix transition. By replacing the kinetically slow oxygen evolution reaction (OER) with the thermodynamically...

Cited by 10 publications

References 48 publications

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Bifunctional Cobalt–Nickel Sulfide Nanoflowers as Electrocatalysts for Concurrent Energy-Efficient Hydrogen Production and Sulfur Recycling

Mo-doped cobaltous sulfide nanosheet arrays as efficient catalysts for the sulfion oxidation reaction promoting hydrogen production with ultra-low electric energy consumption

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Electrocatalytic sulfion recycling assisted energy-saving hydrogen production using CuCo-based nanosheet arrays

Abstract: Establishing an efficient and cost-effective hydrogen production system is an important part of facilitating the energy mix transition. By replacing the kinetically slow oxygen evolution reaction (OER) with the thermodynamically...

Cited by 10 publications

References 48 publications

C60 and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

C60 and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

Bifunctional Cobalt–Nickel Sulfide Nanoflowers as Electrocatalysts for Concurrent Energy-Efficient Hydrogen Production and Sulfur Recycling

Mo-doped cobaltous sulfide nanosheet arrays as efficient catalysts for the sulfion oxidation reaction promoting hydrogen production with ultra-low electric energy consumption

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Product

Resources

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C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions

C₆₀ and Derivatives Boost Electrocatalysis and Photocatalysis: Electron Buffers to Heterojunctions