Formation and Structure of a Tin−Iron Oxide Solid-State System with Potential Applications in Carbon Monoxide Sensing through the Use of Cyanogel Chemistry

Sharp, Stefanie L.; Kumar, Gireesh; Vicenzi, Edward P.; Bocarsly, Andrew Bruce; Heibel, Marija

doi:10.1021/cm970646z

Cited by 26 publications

(12 citation statements)

References 14 publications

(19 reference statements)

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“…SnO 2 is an n‐type semiconductor with surface deficient oxygen,3–5 and there have been numerous reports of its activity as a gas sensor 6–9. Studies on SnO 2 as a catalyst are fewer, although it was tried as a catalyst for SO 2 oxidation into SO 3 as early as the 1920s for H 2 SO 4 production as mentioned in Ref 10.…”

Section: Introductionmentioning

confidence: 99%

Effects of La, Ce, and Y Oxides on SnO₂ Catalysts for CO and CH₄ Oxidation

Zhang

Zeng

et al. 2013

ChemCatChem

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SnO2‐based catalysts modified by La, Ce, and Y with a Sn/Ln (Ln=La, Ce, Y) atomic ratio of 2:1 were prepared by using a co‐precipitation method and used for CO and CH4 oxidation. The catalysts were characterized by N2 adsorption–desorption, XRD, energy dispersive X‐ray spectroscopy (EDS)‐SEM, H2 temperature‐programmed reduction (TPR), X‐ray photoelectron spectroscopy (XPS), and thermogravimetric analysis differential scanning calorimetry (TGA‐DSC) techniques. All three rare earth metal oxides were found to improve the thermal stability of SnO2, which resulted in catalysts with much higher surface areas and smaller crystallite and particle sizes. However, only the addition of Ce resulted in a catalyst with improved activity for both CO and CH4 oxidation. In contrast, La and Y modification resulted in samples with decreased activity for both reactions. For the Ce‐modified sample, Ce cations were found to dope into the lattice of rutile SnO2 to form a solid‐solution structure. As a lattice impurity, ceria, the well‐known oxygen storage component (OSC), led to the formation of more defects in the matrix of SnO2 and impeded the crystallization process, which resulted in a catalyst with a higher surface area and more active oxygen species. In contrast, XRD proved that the addition of La and Y mainly led to the formation of more stable and inert pyrochlore compounds, Sn2La2O7 and Sn2Y2O7, which disrupted a major part of the active sites based on SnO2. Consequently, the oxidation activity was impaired, although these two samples also have higher surface areas than pure SnO2. The Ce‐modified sample showed not only high activity but also good reaction durability and thermal stability. Furthermore, Sn‐Ce binary oxide is a better support than SnO2, CeO2, and traditional Al2O3 supports for Pd, which gives it the potential to be applied in some real after‐treatment applications.

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Section: Introductionmentioning

confidence: 99%

Effects of La, Ce, and Y Oxides on SnO₂ Catalysts for CO and CH₄ Oxidation

Zhang

Zeng

et al. 2013

ChemCatChem

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“…The SnO 2 NPs were synthesized using an already reported procedure [38]. The synthesized SnO 2 NPs were characterized by Fourier transform-infrared spectroscopy, powder X-ray diffraction, field emission scanning electron microscopy and energy dispersive X-ray spectroscopy.…”

Section: Characterization Of Sno 2 Npsmentioning

confidence: 99%

“…Therefore, we extend our present research work by employing SnO 2 nanoparticles as a heterogeneous catalyst for the synthesis of phthalazine derivatives. Tin oxide (SnO 2 ) has a broad spectrum of applications which includes its use in electrochemical [36] and photo-catalytical processes [37], gas sensors [38,39], optical electronic devices [40] and solar cells [41]. Additionally, the SnO 2 NPs have an excellent catalytic behavior in the synthesis of various heterocyclic compounds [42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

SnO2 nanoparticles as an efficient heterogeneous catalyst for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones

Maheswari

Shanmugapriya²,

Revathy³

et al. 2017

J Nanostruct Chem

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A new protocol for the synthesis of 2H-indazolo[2,1-b]phthalazine-trione derivatives is described via a one-pot three-component condensation reaction of phthalhydrazide, dimedone or 1,3-cyclohexanedione and aromatic aldehydes catalyzed by SnO 2 nanoparticles as a heterogeneous catalyst under solvent-free conditions. The SnO 2 nanoparticles (NPs) were characterized by FT-IR, X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray analyzer (EDAX). The advantages of the protocol are the shorter reaction time, simple work-up procedure and reusable catalyst. Graphical AbstractKeywords New protocol Á 2H-indazolo [21-b]phthalazinetrione Á SnO 2 nanoparticles Á Solvent-free Á Heterogeneous catalyst Á Reusable catalyst Electronic supplementary material The online version of this article (

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“…The large surface area of SnO 2 allows more surface to be available for CO adsorption and the subsequent desorption of CO 2 , which in turn would allow for an increase in its sensitivity (Sharp, et al, 1998;Farrukh, Heng and Adnan, 2010). Nanosized SnO 2 could enhance the sensor performance because of its microstructural characteristics and electronic properties.…”

Section: Introductionmentioning

confidence: 99%

Tin Oxide Nanoparticles: Synthesis, Characterization and Study their Particle Size at Different Current Density

Omar

2013

ARO

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Formation and Structure of a Tin−Iron Oxide Solid-State System with Potential Applications in Carbon Monoxide Sensing through the Use of Cyanogel Chemistry

Cited by 26 publications

References 14 publications

Effects of La, Ce, and Y Oxides on SnO₂ Catalysts for CO and CH₄ Oxidation

Effects of La, Ce, and Y Oxides on SnO₂ Catalysts for CO and CH₄ Oxidation

SnO2 nanoparticles as an efficient heterogeneous catalyst for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones

Tin Oxide Nanoparticles: Synthesis, Characterization and Study their Particle Size at Different Current Density

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Formation and Structure of a Tin−Iron Oxide Solid-State System with Potential Applications in Carbon Monoxide Sensing through the Use of Cyanogel Chemistry

Cited by 26 publications

References 14 publications

Effects of La, Ce, and Y Oxides on SnO2 Catalysts for CO and CH4 Oxidation

Effects of La, Ce, and Y Oxides on SnO2 Catalysts for CO and CH4 Oxidation

SnO2 nanoparticles as an efficient heterogeneous catalyst for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones

Tin Oxide Nanoparticles: Synthesis, Characterization and Study their Particle Size at Different Current Density

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Effects of La, Ce, and Y Oxides on SnO₂ Catalysts for CO and CH₄ Oxidation

Effects of La, Ce, and Y Oxides on SnO₂ Catalysts for CO and CH₄ Oxidation