Modified chemical synthesis of porous α-Sm2S3 thin films

Kumbhar, Vijay S.; Jagadale, Ajay D.; Gaikwad, N.S.; Lokhande, C.D.

doi:10.1016/j.materresbull.2014.04.020

Cited by 20 publications

(6 citation statements)

References 21 publications

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“…Figure S10 exhibits the Sm 3d XPS spectra of different samples. According to the previous studies, , the main strong peaks at 1109.6 and 1082.5 eV with the spin-energy separation of 27.1 eV represent the presence of the Sm 3+ state in different samples. Particularly, in the SCMO-Cu-HT sample, a peak at 1072 eV is observed, which stems from Na ions according to our XPS full spectra.…”

Section: Resultssupporting

confidence: 83%

Nanoporous CeO₂-Decorated Cu-SmMn₂O₅ Composite Mullite Oxide Catalyst for Toluene Oxidation

Dun,

Ma,

Liu

et al. 2024

ACS Appl. Nano Mater.

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Mullite-type AMn 2 O 5 materials represent a group of promising candidates to substitute noble metal catalysts for the catalytic removal of volatile organic compounds (VOCs). When applied to catalytic oxidation of aromatic hydrocarbons such as toluene, AMn 2 O 5 exhibits undesirable performance due to its poor intrinsic activity of oxygen species, leading to a light-off temperature above 250 °C. In this work, we have developed a synthesis route combining a two-step calcination and cation-exchange process to prepare a nanoporous CeO 2 -decorated Cu-SmMn 2 O 5 composite mullite oxide catalyst applied in toluene oxidation. The best performing sample reached 90% toluene conversion at 190 °C, surpassing other transition metal oxide catalysts. Comprehensive characterizations reveal that Cu ion doping into the crystal lattice of the mullite phase is achieved via the cation-exchange process. In this catalyst design, surface CeO 2 decoration and Cu doping promote the reduction ability and improve oxygen species activity to accelerate toluene oxidation. Overall, this work provides a strategy to prepare composite mullite oxide catalysts with high performance in the removal of VOCs, broadening the industrial application prospects of mullite-type materials.

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Section: Resultssupporting

confidence: 83%

Nanoporous CeO₂-Decorated Cu-SmMn₂O₅ Composite Mullite Oxide Catalyst for Toluene Oxidation

Dun,

Ma,

Liu

et al. 2024

ACS Appl. Nano Mater.

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“…1b. Kumbhar et al [24] observed 45° water contact angle for α -Sm 2 S 3 thin film synthesized using SILAR method. Pujari et al [25] observed 49.7° water contact angle for ytterbium sulfide thin film synthesized by where α is known as absorption coefficient, A is constant, Eg is optical band gap of material, υ is frequency of radiation and h is Planks constant, n is 2 for indirect band gap and 1/2 for direct band gap material.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical behavior of hydrothermally synthesized porous groundnuts-like samarium oxide thin films

et al. 2020

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One pot hydrothermal method is used for synthesis of groundnuts-like samarium oxide (Sm 2 O 3) thin film on stainless steel substrate. The Sm 2 O 3 film is characterized by X-ray diffraction, water contact angle, UV-visible spectrophotometer, photoluminescence, and field emission scanning electron microscopy techniques. The hydrothermal method allows the formation of cubic Sm 2 O 3 film with porous groundnuts-like morphology. The Sm 2 O 3 film is hydrophilic with the optical band gap of 3.70 eV. Electrochemical capacitive behavior of Sm 2 O 3 film is studied using cyclic voltammetry, galvanostatic charge-discharge measurement and electrochemical impedance spectroscopy. The Sm 2 O 3 film exhibits maximum specific capacitance of 155 Fg −1 at 5 mVs −1 scan rate in 1 M KOH electrolyte.

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“…The drop of the liquid applied on the solid substrate is 1 µl. For the controlling or modifying of electrode surface, wettability is an important aspect of the application of supercapacitor [18]. The water contact angle measurement photographs of films are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Lanthanum sulfide/graphene oxide composite thin films and their supercapacitor application

et al. 2018

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In this study, graphene oxide, lanthanum sulfide and their composite thin films are prepared using simple and inexpensive chemical methods and their supercapacitive performance is evaluated. The X-ray diffraction study shows the formation of mixed-phase lanthanum sulfide with monoclinic α-LaS 2 and tetragonal La 5 S 7. Field emission scanning electron microscopy images show porous surface morphology of lanthanum sulfide and composite thin films. The supercapacitive performance of composite film tested in 1 M Na 2 SO 4 electrolyte shows highest specific capacitance of 312 F g −1 at a 5 mV s −1 scan rate.

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Modified chemical synthesis of porous α-Sm2S3 thin films

Cited by 20 publications

References 21 publications

Nanoporous CeO₂-Decorated Cu-SmMn₂O₅ Composite Mullite Oxide Catalyst for Toluene Oxidation

Nanoporous CeO₂-Decorated Cu-SmMn₂O₅ Composite Mullite Oxide Catalyst for Toluene Oxidation

Electrochemical behavior of hydrothermally synthesized porous groundnuts-like samarium oxide thin films

Lanthanum sulfide/graphene oxide composite thin films and their supercapacitor application

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Modified chemical synthesis of porous α-Sm2S3 thin films

Cited by 20 publications

References 21 publications

Nanoporous CeO2-Decorated Cu-SmMn2O5 Composite Mullite Oxide Catalyst for Toluene Oxidation

Nanoporous CeO2-Decorated Cu-SmMn2O5 Composite Mullite Oxide Catalyst for Toluene Oxidation

Electrochemical behavior of hydrothermally synthesized porous groundnuts-like samarium oxide thin films

Lanthanum sulfide/graphene oxide composite thin films and their supercapacitor application

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Nanoporous CeO₂-Decorated Cu-SmMn₂O₅ Composite Mullite Oxide Catalyst for Toluene Oxidation

Nanoporous CeO₂-Decorated Cu-SmMn₂O₅ Composite Mullite Oxide Catalyst for Toluene Oxidation