Unraveling the dominance of intrinsic catalytic activities over electrical properties in electrocatalytic performance of two-dimensional chromium chalcogenide nanosheets

Yang, Jiefu; Zheng, Mei; Wu, Yao; Le Goualher, Frédéric; Di, Jun; Salim, Teddy; Deng, Ya; Zhu, Chao; Guo, Shasha; Tang, Bijun; Li, Shuzhou; Liu, Zheng

doi:10.1016/j.apcatb.2023.123478

Cited by 6 publications

(1 citation statement)

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“…Metal chalcogenides (sulfides, selenides, and tellurides) with high conductivity and activity are active materials for both HER and OER. [93][94][95][96] For increasing the active sites and boosting the intrinsic activity of metal chalcogenides, dual cation doping is adopted to alter the electronic structure of catalysts and introduce active sites. Cu/Co co-doped Ni 3 S 2 , 69 Cu/Fe co-doped Ni 3 S 4 , 97 Fe/Mn co-doped Ni 3 S 2 , 70 Co/V co-doped NiS x , 98 Fe/V co-doped Ni 3 S 2 , 99,100 Fe/Co dual-doped Ni 3 S 4 , 101 Co/Mn co-doped Fe 9 S 11 @Ni 9 S 8 , 102 Fe/Co co-doped Ni 3 Se 4 , 103 and Ni/Fe co-doped CoSe 2 , 104 which insert two transition metals into metal chalcogenides are representative of efficient catalysts for water electrolysis.…”

Section: Cation-cation Dual-doped Metal Chalcogenidesmentioning

confidence: 99%

Dual doping: An emerging strategy to construct efficient metal catalysts for water electrolysis

Chen,

Han,

Wei

et al. 2024

EcoEnergy

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Developing efficient electrocatalysts for water electrolysis is critical for sustainable hydrogen energy development. For enhancing the catalytic performance of metal catalysts, dual doping has attracted enormous interest for its high effectiveness and facile realization. Dual doping is effective for tuning the electronic properties, enhancing the electrical conductivity, populating active sites, and improving the stability of metal catalysts. In this review, recent developments in cation–cation, cation–anion, and anion–anion dual‐doped catalysts for water splitting are comprehensively summarized and discussed. An emphasis is put on illustrating how dual doping regulates the external and internal properties and boosts the catalytic performance of catalysts. Additionally, perspectives are pointed out to guide future research on engineering high‐performance heteroatom‐doped electrocatalysts.

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Section: Cation-cation Dual-doped Metal Chalcogenidesmentioning

confidence: 99%

Dual doping: An emerging strategy to construct efficient metal catalysts for water electrolysis

Chen,

Han,

Wei

et al. 2024

EcoEnergy

View full text Add to dashboard Cite

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Liquid Phase Exfoliation of Few‐Layer Non‐Van der Waals Chromium Sulfide

Su,

Kuklin,

Jin

et al. 2024

Advanced Science

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Exfoliation of 2D non‐Van der Waals (non‐vdW) semiconductor nanoplates (NPs) from inorganic analogs presents many challenges ahead for further exploring of their advanced applications on account of the strong bonding energies. In this study, the exfoliation of ultrathin 2D non‐vdW chromium sulfide (2D Cr2S3) by means of a combined facile liquid‐phase exfoliation (LPE) method is successfully demonstrated. The morphology and structure of the 2D Cr2S3 material are systematically examined. Magnetic studies show an obvious temperature‐dependent uncompensated antiferromagnetic behavior of 2D Cr2S3. The material is further loaded on TiO2 nanorod arrays to form an S‐scheme heterojunction. Experimental measurements and density functional theory (DFT) calculations confirm that the formed TiO2@Cr2S3 S‐scheme heterojunction facilitates the separation and transmission of photo‐induced electron/hole pairs, resulting in a significantly enhanced photocatalytic activity in the visible region.

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