Electronic modulation and vacancy engineering of Ni9S8 to synergistically boost efficient water splitting: Active vacancy-metal pairs

Gao, Qin; Luo, Wei; Ma, Xueying; Ma, Zemian; Li, Sijun; Gou, Fenglin; Shen, Wei; Jiang, Yimin; He, Rongxing; Li, Ming

doi:10.1016/j.apcatb.2022.121356

Cited by 58 publications

(22 citation statements)

References 57 publications

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“…As shown in Figure 3d, CuS@ZnS CSNCs had a stronger signal than ZnS NCs at g = 2.003. 19,21,22 In addition, the spin number of S vacancies of CuS@ZnS CSNCs was 1.81 × 10 11 spins mm −3 , which is significantly higher than that of ZnS NCs (1.20 × 10 11 ), as shown in Table S1. However, the CuS NCs did not show any signals.…”

Section: ■ Results and Discussionmentioning

confidence: 91%

Infrared Light-Induced Anomalous Defect-Mediated Plasmonic Hot Electron Transfer for Enhanced Photocatalytic Hydrogen Evolution

Lian

et al. 2023

J. Am. Chem. Soc.

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Efficient utilization of infrared (IR) light, which occupies almost half of the solar energy, is an important but challenging task in solar-to-fuel transformation. Herein, we report the discovery of CuS@ZnS core@shell nanocrystals (CSNCs) with strong localized surface plasmon resonance (LSPR) characteristics in the IR light region showing enhanced photocatalytic activity in hydrogen evolution reaction (HER). A unique “plasmon-induced defect-mediated carrier transfer” (PIDCT) at the heterointerfaces of the CSNCs divulged by time-resolved transient spectroscopy enables producing a high quantum yield of 29.2%. The CuS@ZnS CSNCs exhibit high activity and stability in H2 evolution under near-IR light irradiation. The HER rate of CuS@ZnS CSNCs at 26.9 μmol h–1 g–1 is significantly higher than those of CuS NCs (0.4 μmol h–1 g–1) and CuS/ZnS core/satellite heterostructured NCs (15.6 μmol h–1 g–1). The PIDCT may provide a viable strategy for the tuning of LSPR-generated carrier kinetics through controlling the defect engineering to improve photocatalytic performance.

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Section: ■ Results and Discussionmentioning

confidence: 91%

Infrared Light-Induced Anomalous Defect-Mediated Plasmonic Hot Electron Transfer for Enhanced Photocatalytic Hydrogen Evolution

Lian

et al. 2023

J. Am. Chem. Soc.

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“…Current status of TMCs as electrocatalysts toward (a) HER and (b) OER in literature since 2018. Data were extracted from refs − . Every circle represents an individual work in literature with filled colors of yellow-green, cyan, and red corresponding to single-metal, binary-metal, and ternary-metal based TMC electrocatalysts.…”

Section: Strategies Of Promoting the Activity Of Transition Metal Cha...mentioning

confidence: 99%

A Mini Review on Transition Metal Chalcogenides for Electrocatalytic Water Splitting: Bridging Material Design and Practical Application

et al. 2023

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Hydrogen is believed to be one of the essential clean secondary energy sources in the energy structure revolution of both industry and daily life. Driven by renewable electricity such as solar and wind power, water electrolysis for hydrogen production is deemed as one of the main processes of green hydrogen production in the future by both academia and industry. Transition metal chalcogenides (TMCs) are promising candidates to replace noble metals as earth-abundant electrocatalysts for water splitting. However, it remains challenging to further improve the electrocatalytic activity and long-term stability of TMCs, especially in a practical water electrolyzer. This Review summarizes the recent advances and the strategies of optimizing the electrocatalytic activities of TMCs toward water splitting as well as the latest investigations on the surface reconstructions of TMCs during water electrolysis. The performances of TMCs in practical electrocatalytic water splitting cells are particularly discussed. Finally, a concluding remark and perspective is provided, and we hope to inspire future works in this area, narrowing the gap between material design and practical application.

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“…These results suggest that the surface may turn into metal oxyhydroxide/sulfate, which is supposed to host the true catalysis. Such induced species are believed to be more conductive (since they are in the vicinity of a more conductive chalcogenide) [65]. To get more insight into the surface reconstruction during OER, we compared the valence band spectra before and after OER activity (Fig.…”

Section: Post-catalytic Studiesmentioning

confidence: 99%

Interfacing CrOx and CuS for synergistically enhanced water oxidation catalysis

Shifa

Gradone²,

Yusupov³

et al. 2023

Chemical Engineering Journal

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Electronic modulation and vacancy engineering of Ni9S8 to synergistically boost efficient water splitting: Active vacancy-metal pairs

Cited by 58 publications

References 57 publications

Infrared Light-Induced Anomalous Defect-Mediated Plasmonic Hot Electron Transfer for Enhanced Photocatalytic Hydrogen Evolution

Infrared Light-Induced Anomalous Defect-Mediated Plasmonic Hot Electron Transfer for Enhanced Photocatalytic Hydrogen Evolution

A Mini Review on Transition Metal Chalcogenides for Electrocatalytic Water Splitting: Bridging Material Design and Practical Application

Interfacing CrOx and CuS for synergistically enhanced water oxidation catalysis

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