The effect of Li-salt additions on the densification of tin oxide

Yuan, D.-W.; Wang, Sea‐Fue; Huebner, Wayne; Simkovich, G.

doi:10.1557/jmr.1993.1675

Cited by 16 publications

(4 citation statements)

References 11 publications

(6 reference statements)

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“…They attributed the high densification to the increased concentration of oxygen vacancies in the grain boundary region, with the proposed reaction for the formation of oxygen vacancies when SnO 2 is doped with Co. These results are in agreement with the work of Yuan et al [23] who demonstrated that the Li + ion also promotes SnO 2 densification by increasing the flux of species that diffuse inside the material. Pianaro et al [24] observed that when the basic SnO 2 varistor is doped with Cr 2 O 3 the grain size decreased, indicating that Cr 2 O 3 inhibits grain growth during sintering.…”

Section: Microstructural Characterizationsupporting

confidence: 86%

Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2

Ferreira

Vaz

Rubinger

et al. 2019

PAC

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Low resistive electrodes based on Co and Mo co-doped SnO2 were prepared by the conventional solid-state reaction and sintered at 1250?C for 2 h. Concentration of Co2O3 precursor was unchanged (1mol%), while MoO3 was varied (0.25, 0.50 to 0.75mol%) to promote conductivity. The structural and microstructural characterization revealed that the samples have a rutile-type structure without secondary phases and large rutile grains with low porosity. Electrical measurements on DC mode have shown a semiconductor behaviour of the SnO2 samples doped with 0.25 and 0.75 at.% of Mo at temperatures below 50K, indicating their suitability for low-temperature electronic applications. Impedance measurements indicate reduced energy barriers of less than 1meV formed between highly conductive crystallites for the SnO2 samples doped with 0.25 and 0.75 at.% of Mo. The sample with Mo content of 0.50 at.% presented a higher energy barrier at a few hundredths of eV, with space charges at the crystallite boundaries.

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Section: Microstructural Characterizationsupporting

confidence: 86%

Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2

Ferreira

Vaz

Rubinger

et al. 2019

PAC

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“…This is potentially an important point as several papers have reported improved performance for ceramic materials sintered in the presence of a liquid phase. [49][50][51] Figure 2 shows XRD data and Raman spectra for films sprayed from nickel nitrate solutions with and without 5 wt % LiNO 3 added. The lithium nitrate loading level was fixed based on separate experiments that demonstrated no significant improvement in film performance for loadings higher than 5% ͑data not shown͒.…”

Section: Resultsmentioning

confidence: 99%

Fast-Switching Electrochromic Li[sup +]-Doped NiO Films by Ultrasonic Spray Deposition

Tenent

Gillaspie

Miedaner

et al. 2010

J. Electrochem. Soc.

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A low cost, high throughput deposition method for films of nickel oxide (NiO) and lithium-doped nickel oxide with improved electrochromic performance is demonstrated. This method is based on ultrasonic spray deposition of aqueous-based precursor solutions in air at atmospheric pressure, which represents a significant cost savings compared to vacuum deposition methods. The resultant materials are characterized by X-ray diffraction, Raman spectroscopy, electron microscopy, and electrochemical measurements. Electrochromic performance is demonstrated with in situ optical transmission measurements during electrochemical characterization. Nickel oxide materials color anodically and are thereby ideally suited to be used as counter electrode for the well-known tungsten oxide (WnormalO3) system in “smart” window applications. The coloration of nickel oxide materials is known to be slow when compared to WnormalO3 and thereby limits the overall response time of a NiO∕WnormalO3 tandem device. The analysis of potential step response data shows that our lithium-doped nickel oxide material achieves 90% of its total coloration change in 29s , which is comparable to reported measurements for WnormalO3 . These results significantly mitigate a potential bottleneck to the adoption of metal oxide electrochromic windows not only by demonstrating similar performance between NiO and WnormalO3 , but by achieving this result via low cost, highly scalable processing methods.

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“…LabVIEW has been already used in X-ray imaging for large scale CT tomographic reconstruction software development [5], X-ray flat-panel detector driver design [6] and CT imaging system software building [7][8][9] by different teams. In addition, the LabVIEW's Vision Development Module (VDM) provides an excellent tool to perform digital image processing [10,11], the utilization of the VDM reduces the complexity and shortens the development cycle. The newly released LabVIEW Biomedical Workbench Toolkit (BWT) includes also a 3D image reconstruction module, which could reconstruct a 3D model from a set of 2D image slices.…”

Section: Introductionmentioning

confidence: 99%

A user-friendly nano-CT image alignment and 3D reconstruction platform based on LabVIEW

Zhang

et al. 2015

Chinese Phys. C

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X-ray computed tomography at the nanometer scale (nano-CT) offers a wide range of applications in scientific and industrial areas. Here we describe a reliable, user-friendly and fast software package based on LabVIEW that may allow to perform all procedures after the acquisition of raw projection images in order to obtain the inner structure of the investigated sample. A suitable image alignment process to address misalignment problems among image series due to mechanical manufacturing errors, thermal expansion and other external factors has been considered together with a novel fast parallel beam 3D reconstruction procedure, developed ad hoc to perform the tomographic reconstruction. Remarkably improved reconstruction results obtained at the Beijing Synchrotron Radiation Facility after the image calibration confirmed the fundamental role of this image alignment procedure that minimizes unwanted blurs and additional streaking artifacts always present in reconstructed slices. Moreover, this nano-CT image alignment and its associated 3D reconstruction procedure fully based on LabVIEW routines, significantly reduce the data post-processing cycle, thus making faster and easier the activity of the users during experimental runs.

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The effect of Li-salt additions on the densification of tin oxide

Cited by 16 publications

References 11 publications

Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2

Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2

Fast-Switching Electrochromic Li[sup +]-Doped NiO Films by Ultrasonic Spray Deposition

A user-friendly nano-CT image alignment and 3D reconstruction platform based on LabVIEW

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