One-pot solvothermal synthesis of flower-like Fe-doped In2S3/Fe3S4 S-scheme hetero-microspheres with enhanced interfacial electric field and boosted visible-light-driven CO2 reduction

Xu, Tongfei; Su, Xiaoxuan; Zhu, Yijia; Khan, Shahid Ullah; Chen, De-Li; Guo, Changfa; Ning, Jiqiang; Zhong, Yijun; Hu, Yong‐Jie

doi:10.1016/j.jcis.2022.09.132

Cited by 32 publications

(6 citation statements)

References 68 publications

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“…11. 141 Fe atoms are doped into the In 2 S 3 of flower-like In 2 S 3 /Fe 3 S 4 hetero-microspheres (Fe–In 2 S 3 /Fe 3 S 4 HMSs) via a facile one-pot solvothermal. DFT calculation shows that Fe atoms in the form of Fe 2+ replace a part of In 3+ at the In1 site and removes adjacent S1 atoms to form a defect scheme of vacancy and heteroatom (Fig.…”

Section: Applications In Solar Energy Conversionmentioning

confidence: 99%

Dual-defect semiconductor photocatalysts for solar-to-chemical conversion: advances and challenges

Li,

Guo

et al. 2024

Chem. Commun.

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Section: Applications In Solar Energy Conversionmentioning

confidence: 99%

Dual-defect semiconductor photocatalysts for solar-to-chemical conversion: advances and challenges

Li,

Guo

et al. 2024

Chem. Commun.

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“…Previous studies have discovered that the iron sulfides can effectively modulate the material's hydrophobicity, [32,33] and they exhibit a relatively smaller bandgap and higher conductivity. [34][35][36] We therefore proposed to employ iron sulfides to engineer the hydrophobicity and electrochemical activity of air electrodes. In this case, in situ growth of CoS/Fe 3 S 4 nanoparticles on S, N co-doped carbon plate (denoted as CoS/ Fe 3 S 4 @SNCP) arrays are demonstrated as an advanced selfsupported air cathode.…”

Section: Introductionmentioning

confidence: 99%

Engineering Self‐Supported Hydrophobic–Aerophilic Air Cathode with CoS/Fe₃S₄ Nanoparticles Embedded in S, N Co‐Doped Carbon Plate Arrays for Long‐Life Rechargeable Zn–Air Batteries

Yan

Xie

Chen

et al. 2023

Advanced Energy Materials

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The highly sluggish kinetics of oxygen reduction/evolution reactions (ORR/OER) at air cathodes lead to problems such as low power density and unsatisfactory cycling life with rechargeable Zn–air batteries (RZABs). To engineer the reaction kinetics at the air cathodes, a hydrophobic–aerophilic strategy is developed to fabricate a self‐supported air cathode based on CoS/Fe3S4 nanoparticles encapsulated in S, N co‐doped carbon plate arrays (CoS/Fe3S4@SNCP). It is experimentally shown that the in situ growth of bimetallic sulfides nanoparticles on the carbon plate arrays improves the intrinsic electrocatalytic activity and electron conduction of the air cathode. Meanwhile, the ab initio molecular dynamics simulations reveal that the hydrophobic–aerophilic surface can repel water molecules to create abundant solid–liquid–gas three‐phase reaction interfaces as well as to expose Fe‐sites, which consequently promote the diffusion of reactive molecules/ions across the interface and the oxygen adsorption. As a result, the CoS/Fe3S4@SNCP electrode exhibits excellent OER and ORR activities with a smaller potential gap of 0.65 V. For the engineered hydrophobicity of the catalyst, the RZAB demonstrates a high power density of 272 mW cm−2, a narrow discharge/charge gap of 0.75 V at 10 mA cm−2, and long‐term cycling stability over 1400 h, outperforming its hydrophilic CoS@SNCP counterparts.

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“…In addition, according to the principle of electroneutrality, the replacement of Sn 4+ by Fe 3+ introduces S vacancies. S vacancies exhibit electron donors, allowing Sn and S atoms to have more electrons, and thus the binding energy is reduced …”

Section: Resultsmentioning

confidence: 99%

“…S vacancies exhibit electron donors, allowing Sn and S atoms to have more electrons, and thus the binding energy is reduced. 51 As shown in Figure 5a, the optical properties of Fe x Sn 1−x S 2 nanoflowers (x = 0, 0.02, 0.04, 0.06) were studied by UV−vis spectroscopy. Following the introduction of Fe doping, the absorption characteristics of SnS 2 were observed to be significantly enhanced within the long-wave range.…”

Section: Resultsmentioning

confidence: 99%

Fe-Doped SnS₂ Nanoflowers for Magnetically-Tunable Photoelectrocatalytic Hydrogen Evolution Reaction

Hu,

Bo,

et al. 2023

ACS Appl. Nano Mater.

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Because of its excellent optical and electrical properties, SnS2 has been widely used in solar cells, photocatalysis, and other fields. Here, a Fe-doped SnS2 nanoflower with room temperature ferromagnetism was constructed to investigate the effect of Fe doping and an external magnetic field on the photoelectric catalytic hydrogen production of water splitting. Enhanced visible-light absorption and electrical conductivity were observed in Fe-doped SnS2, thereby enhancing its photoelectrocatalytic hydrogen production performance. Moreover, the application of an external magnetic field leads to a negative potential shift, resulting in a decreased photocurrent response for Fe-doped SnS2. In addition, the first-principles calculations also indicate the origin of the magnetic properties and improved catalytic activity of a SnS2 nanoflower with Fe doping.

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One-pot solvothermal synthesis of flower-like Fe-doped In2S3/Fe3S4 S-scheme hetero-microspheres with enhanced interfacial electric field and boosted visible-light-driven CO2 reduction

Cited by 32 publications

References 68 publications

Dual-defect semiconductor photocatalysts for solar-to-chemical conversion: advances and challenges

Dual-defect semiconductor photocatalysts for solar-to-chemical conversion: advances and challenges

Engineering Self‐Supported Hydrophobic–Aerophilic Air Cathode with CoS/Fe₃S₄ Nanoparticles Embedded in S, N Co‐Doped Carbon Plate Arrays for Long‐Life Rechargeable Zn–Air Batteries

Fe-Doped SnS₂ Nanoflowers for Magnetically-Tunable Photoelectrocatalytic Hydrogen Evolution Reaction

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One-pot solvothermal synthesis of flower-like Fe-doped In2S3/Fe3S4 S-scheme hetero-microspheres with enhanced interfacial electric field and boosted visible-light-driven CO2 reduction

Cited by 32 publications

References 68 publications

Dual-defect semiconductor photocatalysts for solar-to-chemical conversion: advances and challenges

Dual-defect semiconductor photocatalysts for solar-to-chemical conversion: advances and challenges

Engineering Self‐Supported Hydrophobic–Aerophilic Air Cathode with CoS/Fe3S4 Nanoparticles Embedded in S, N Co‐Doped Carbon Plate Arrays for Long‐Life Rechargeable Zn–Air Batteries

Fe-Doped SnS2 Nanoflowers for Magnetically-Tunable Photoelectrocatalytic Hydrogen Evolution Reaction

Contact Info

Product

Resources

About

Engineering Self‐Supported Hydrophobic–Aerophilic Air Cathode with CoS/Fe₃S₄ Nanoparticles Embedded in S, N Co‐Doped Carbon Plate Arrays for Long‐Life Rechargeable Zn–Air Batteries

Fe-Doped SnS₂ Nanoflowers for Magnetically-Tunable Photoelectrocatalytic Hydrogen Evolution Reaction