Bi2S3 quantum dots in situ grown on MoS2 nanoflowers: An efficient electron-rich interface for photoelectrochemical N2 reduction

Gao, Nan; Yang, Huimin; Dong, Dai; Dou, Danyang; Liu, Yujie; Zhou, Wenjing; Gao, Fanfan; Cheng, Nan; Zhen, Liang; Yang, Di

doi:10.1016/j.jcis.2021.12.096

Cited by 38 publications

(17 citation statements)

References 48 publications

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“…These features closely interrelate with the orthorhombic structure of Bi 2 S 3 , of which each Bi 3+ ion is in a highly distorted octahedral geometry . Meanwhile, bismuth and bismuth sulfide have gained more attention for ammonia synthesis due to the Bi atom with p-orbital electrons exhibiting an attractive nitrogen activation. , Another characteristic is the reasonable HER activity on the Bi atom, which is conducive to improve the selectivity of target products for the electrocatalytic reduction reaction of several important small molecules, such as N 2 , NO, and CO 2 . − In addition, due to the poor conductivity and inert basal plane catalysis, the catalytic performance has been not satisfactory. Another sulfide MoS 2 as a potential cathode material has been widely concerned in the electrocatalytic synthesis of ammonia. − At present, through several synthesis strategies such as sulfur vacancy, interface engineering, and single-atom doping, the inherent electronic structures can be adjusted and more active edge sites can be exposed. ,,− Inspired by the above factors, it is very necessary to evaluate the feasibility of using the interface engineering strategy to regulate Bi 2 S 3 /MoS 2 materials as cost-effective NO 3 – RR catalysts, which has not been explored so far.…”

Section: Introductionmentioning

confidence: 94%

Heterostructured Bi₂S₃/MoS₂ Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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Developing efficient electrocatalysts to realize the nitrate reduction reaction (eNO 3 − RR) for ammonia synthesis as an alternative to the traditional Haber−Bosch production process is of great significance. Herein, the heterostructured Bi 2 S 3 /MoS 2 nanoarrays were successfully synthesized by Bi 2 S 3 nanowires anchored on MoS 2 nanosheets. Owing to the interfacial coupling effect, both particular surface area and exposure active sites increase. Density functional theory further uncovered that the excellent activity originates from charge transfer of the interface and a low potential barrier of 0.58 eV for hydrogenation of *NO to *NOH on Bi 2 S 3 /MoS 2 . Compared with pure Bi 2 S 3 and MoS 2 catalysts, the heterostructured Bi 2 S 3 /MoS 2 nanoarrays exhibit a superior NH 3 yield of 15.04 × 10 −2 mmol•h −1 •cm −2 and a Faraday efficiency of 88.4% at −0.8 V versus the reversible hydrogen electrode. This work provides a new avenue to explore advanced electrocatalysts, which is expected to shorten the distance from the practical application of the eNO 3 − RR technology.

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Section: Introductionmentioning

confidence: 94%

Heterostructured Bi₂S₃/MoS₂ Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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“…33,40,48 These results suggest that the valence state of Bi is +3 and that of S is −2, corresponding to the Bi−S bond. 33,34,43 Interestingly, the binding energy of Bi 4f and S 2p in Bi 2 S 3 /N-RGO composites shows an obvious red shift, consistent with the N 1s spectrum. Bi 2 S 3 and N-RGO have an intimate synergetic interaction, which promotes the migration of electrons.…”

Section: Characterization Of Electrocatalystsmentioning

confidence: 79%

Electrochemical Co-reduction of N₂ and CO₂ to Urea Using Bi₂S₃ Nanorods Anchored to N-Doped Reduced Graphene Oxide

Xing

Wei

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Producing "green urea" using renewable energy, N 2 , and CO 2 is a long-considered challenge. Herein, an electrocatalyst, Bi 2 S 3 /N-reduced graphene oxide (RGO), was synthesized by loading the Bi 2 S 3 nanorods onto the N-RGO via a hydrothermal method. The Bi 2 S 3 /N-RGO composites exhibit the highest yield of urea (4.4 mmol g −1 h −1 ), which is 12.6 and 3.1 times higher than that of Bi 2 S 3 (0.35 mmol g −1 h −1 ) and that of N-RGO (1.4 mmol g −1 h −1 ), respectively. N-RGO, because of its porous and openlayer structure, improves the mass transfer efficiency and stability, while the basic groups (-OH and -NH 2 ) promote the adsorption and activation of CO 2 . Bi 2 S 3 promotes the absorption and activation of inert N 2 . Finally, the defect sites and the synergistic effect on the Bi 2 S 3 /N-RGO composites work simultaneously to form urea from N 2 and CO 2 . This study provides new insights into urea synthesis under ambient conditions and a strategy for the design and development of a new material for green urea synthesis. KEYWORDS: N-doped reduced graphene oxide, Bi 2 S 3 nanorods, N 2 and CO 2 adsorption and activation, electrocatalytic synthesis of urea, couple C−N bond

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“…198,199 Among the p-block-element-based catalysts, Bi 2 S 3 quantum dots were successfully employed as cocatalysts to promote the photoelectrochemical N 2 reaction activity of MoS 2 nanoflowers. 200 The above results suggest that the p-block-elementbased materials are emerging catalysts for various sustainable ammonia production techniques.…”

Section: Conclusion Challenges and Outlookmentioning

confidence: 86%

“…Some p-block-element-based materials, such as BiVO 4 , − BiOBr, and black phosphorus can serve as viable photoelectrodes because they possess suitable band structures to generate abundant photoinduced electrons. In addition to the semiconductor materials for harvesting solar energy, the photoelectrocatalytic NRR systems also require noble metal cocatalysts (e.g., Au) to boost the charge transfer. , Among the p-block-element-based catalysts, Bi 2 S 3 quantum dots were successfully employed as cocatalysts to promote the photoelectrochemical N 2 reaction activity of MoS 2 nanoflowers . The above results suggest that the p-block-element-based materials are emerging catalysts for various sustainable ammonia production techniques.…”

Section: Conclusion Challenges and Outlookmentioning

confidence: 99%

Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

Liu

Lee

et al. 2022

ACS Nano

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Artificial nitrogen conversion reactions, such as the production of ammonia via dinitrogen or nitrate reduction and the synthesis of organonitrogen compounds via C−N coupling, play a pivotal role in the modern life. As alternatives to the traditional industrial processes that are energy-and carbon-emission-intensive, electrocatalytic nitrogen conversion reactions under mild conditions have attracted significant research interests. However, the electrosynthesis process still suffers from low product yield and Faradaic efficiency, which highlight the importance of developing efficient catalysts. In contrast to the transition-metal-based catalysts that have been widely studied, the p-block-element-based catalysts have recently shown promising performance because of their intriguing physiochemical properties and intrinsically poor hydrogen adsorption ability. In this Perspective, we summarize the latest breakthroughs in the development of p-block-elementbased electrocatalysts toward nitrogen conversion applications, including ammonia electrosynthesis from N 2 reduction and nitrate reduction and urea electrosynthesis using nitrogen-containing feedstocks and carbon dioxide. The catalyst design strategies and the underlying reaction mechanisms are discussed. Finally, major challenges and opportunities in future research directions are also proposed.

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Bi2S3 quantum dots in situ grown on MoS2 nanoflowers: An efficient electron-rich interface for photoelectrochemical N2 reduction

Cited by 38 publications

References 48 publications

Heterostructured Bi₂S₃/MoS₂ Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Heterostructured Bi₂S₃/MoS₂ Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Electrochemical Co-reduction of N₂ and CO₂ to Urea Using Bi₂S₃ Nanorods Anchored to N-Doped Reduced Graphene Oxide

Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

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Bi2S3 quantum dots in situ grown on MoS2 nanoflowers: An efficient electron-rich interface for photoelectrochemical N2 reduction

Cited by 38 publications

References 48 publications

Heterostructured Bi2S3/MoS2 Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Heterostructured Bi2S3/MoS2 Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Electrochemical Co-reduction of N2 and CO2 to Urea Using Bi2S3 Nanorods Anchored to N-Doped Reduced Graphene Oxide

Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

Contact Info

Product

Resources

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Heterostructured Bi₂S₃/MoS₂ Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Heterostructured Bi₂S₃/MoS₂ Nanoarrays for Efficient Electrocatalytic Nitrate Reduction to Ammonia Under Ambient Conditions

Electrochemical Co-reduction of N₂ and CO₂ to Urea Using Bi₂S₃ Nanorods Anchored to N-Doped Reduced Graphene Oxide