Heterointerface and crystallinity engineering of Ru/RuS2 dual co-catalysts for enhanced photocatalytic hydrogen evolution

Wang, Xinyu; You, Junhua; Ren, Jiali; Xue, Yanjun; Tian, Jian; Zhang, Hangzhou

doi:10.1016/j.apcatb.2024.123722

Cited by 5 publications

(1 citation statement)

References 77 publications

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“…The use of transition metal sulfides (such as CuS, 195 Bi 2 S 3 , 196 MnS, 197 FeS 2 , 198 and RuS 2 199 ) as cocatalysts has also been proven to enhance the performance of semiconductor photocatalytic H 2 evolution. In the current study, it has also been found that bimetallic sulfides have higher catalytic activity compared to monometallic sulfides.…”

Section: Metal Sulfide Cocatalystmentioning

confidence: 99%

Recent progress on the photocatalytic hydrogen evolution reaction over a metal sulfide cocatalyst-mediated carbon nitride system

Huang,

Song,

et al. 2024

Inorg. Chem. Front.

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Section: Metal Sulfide Cocatalystmentioning

confidence: 99%

Recent progress on the photocatalytic hydrogen evolution reaction over a metal sulfide cocatalyst-mediated carbon nitride system

Huang,

Song,

et al. 2024

Inorg. Chem. Front.

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Enhanced Photocatalytic Hydrogen Evolution Activity Driven by the Synergy Between Surface Vacancies and Cocatalysts: Surface Reaction Matters

Yue,

Ye,

Liu

et al. 2024

Advanced Science

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The incorporation of defects and cocatalysts is known to be effective in improving photocatalytic activity, yet their coupled contribution to the photocatalytic hydrogen evolution process has not been well‐explored. In this study, We demonstrate that the incorporation of S vacancies and NiSe can contribute to the improvement of charge separation efficiency via the formation of a strong electric field within the bulk ZnIn2S4 (ZIS) and on its surface. More importantly, We also demonstrate that the synergy of S vacancies and NiSe benefits the overall hydrogen evolution activity by facilitating the H2O adsorption and dissociation process. This is particularly important for hydrogen evolution taking place under alkaline conditions where the proton concentration is low, allowing ZISv‐NiSe (containing abundant S vacancies) to outperform ZIS‐NiSe under alkaline conditions. In contrast, under acid conditions, since there are already sufficient amounts of protons available for reaction, the hydrogen evolution activity became governed by the hydrogen adsorption/desorption process rather than the H2O dissociation process. This leads to ZIS‐NiSe exhibiting higher activity than ZISv‐NiSe due to its more favorable hydrogen adsorption energy. The findings thus provide insights into how defect and cocatalyst modification strategies can be tailor‐made to improve hydrogen evolution activity under different pH conditions.

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Cascade Reaction Enables Heterointerfaces‐Enriched Nanoarrays for Ampere‐Level Hydrogen Production

Du,

He,

et al. 2024

Angewandte Chemie

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Designing high‐performance electrocatalysts with superior catalytic activity and stability is essential for large‐scale hydrogen production via water electrolysis. Heterostructure nanoarrays are promising candidates, though achieving both high activity and stability simultaneously, especially under high current densities, remains challenging. To this end, we have developed a cascade reaction process that constructs a series of heterostructure nanoarrays with rich heterointerfaces. This process involves treating nickel foam (NF) with molten KSCN and transition metal salts. Initially, NF reacts with KSCN to form Ni9S8 nanoarrays and S2‐ ions, which are subsequently captured by transition metal ions to form sulfides that are directly integrated onto the nanoarrays, resulting in abundant heterointerfaces. Both experimental and theoretical results indicate that these rich heterointerfaces significantly enhance the interfacial interaction between Ni9S8 and RuS2 within the nanoarrays (termed RH‐Ni9S8/RuS2), markedly improving both the intrinsic activity and stability for the hydrogen evolution reaction (HER). Impressively, the RH‐Ni9S8/RuS2 demonstrates exceptional HER performance, achieving a low overpotential of just 180 mV at 1000 mA cm−2 and maintaining stability for up to 500 h under such high‐current‐density conditions. This innovative approach paves the way for the interfacial design and synthesis of high‐performance catalysts for ampere‐level hydrogen production.

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Heterointerface and crystallinity engineering of Ru/RuS2 dual co-catalysts for enhanced photocatalytic hydrogen evolution

Cited by 5 publications

References 77 publications

Recent progress on the photocatalytic hydrogen evolution reaction over a metal sulfide cocatalyst-mediated carbon nitride system

Recent progress on the photocatalytic hydrogen evolution reaction over a metal sulfide cocatalyst-mediated carbon nitride system

Enhanced Photocatalytic Hydrogen Evolution Activity Driven by the Synergy Between Surface Vacancies and Cocatalysts: Surface Reaction Matters

Cascade Reaction Enables Heterointerfaces‐Enriched Nanoarrays for Ampere‐Level Hydrogen Production

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