Enhanced Properties of Tin(IV) Oxide Based Materials by Field‐Activated Sintering

Scarlat, Oana; Mihaiu, Susana; Aldica, G.; Zaharescu, M.; Groza, Joanna R.

doi:10.1111/j.1151-2916.2003.tb03393.x

Cited by 28 publications

(22 citation statements)

References 25 publications

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“…Previously, in order to overcome the low sintering ability of the SnO 2 -based ceramics a special sintering method, Spark Plasma Sintering, was reported [41].…”

Section: Sintering Abilitymentioning

confidence: 99%

Advanced ceramics in the SnO2–ZnO binary system

Mihaiu¹,

Toader²,

Atkinson³

et al. 2015

Ceramics International

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“…Previously, in order to overcome the low sintering ability of the SnO 2 -based ceramics a special sintering method, Spark Plasma Sintering, was reported [41].…”

Section: Sintering Abilitymentioning

confidence: 99%

Advanced ceramics in the SnO2–ZnO binary system

Mihaiu¹,

Toader²,

Atkinson³

et al. 2015

Ceramics International

Self Cite

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“…19), 20) In fact, fully-densified, Sb 5+ -doped SnO 2 with a good electrical conductivity has been consolidated by the SPS technique.…”

Section: )13)mentioning

confidence: 99%

Low temperature spark plasma sintering of tin oxide doped with tantalum oxide

Yoshida

Morita

Kim

et al. 2016

J. Ceram. Soc. Japan

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Tantalum oxide-doped, nano-sized tin oxide powder was consolidated by spark plasma sintering by systematically varying the sintering temperature, heating rate, holding time at the sintering temperature, and doping amount. The relative densities of the TaO 2.5 -doped SnO 2 sintered specimens increased with the increasing sintering temperature from 800 to 1000°C, but were almost independent of the heating rate and holding time in the ranges from 3090°C/min and 5120 min, respectively. The DC electrical conductivity, in contrast, reached a maximum value at the sintering temperature of 900°C, but decreased at 1000°C due to decomposition of the SnO 2 . In addition, a faster heating rate and shorter holding time resulted in a higher electrical conductivity of the TaO 2.5 -doped SnO 2 specimens due to the solution of Ta 5+ in the SnO 2 and formation of a metastable compound.

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“…[22] Despite their great electrochemical behavior in the EAOP context, these anodes have not reached a full implementation at industrial scale due to their high cost and low manageability. In literature two methods have been proposed in order to tackle this problem: the use of special sintering techniques, [27] such as the Field Activated Sintering Technique (FAST); [28] or the use of sintering aids, such as copper, zinc and manganese oxides. [23] SnO 2 has a high ability for generating hydroxyl radicals, compared with Pt and other dimensionally stable anodes.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Electrochemical Behavior of (Sb, Sn, Cu)O Ceramic Electrodes as Electrochemical Advanced Oxidation Anodes

et al. 2019

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This work explores the possibility of increasing the active surface of a Sb-doped SnO 2 ceramic electrode using CuO as sintering aid, by incorporating petroleum coke as a pore generator. In order to fulfil this goal, three series of (Sb, Sn, Cu) O electrodes with different coke contents were synthetized. The properties of the electrodes, and their microstructure, change significantly as a function of the coke content before sintering. The electrochemical characterization of the synthesized electrodes showed that the coke addition before sintering causes two antagonist effects on the performance of the (Sn, Sb, Cu)O as anodes in electrochemical advanced oxidation processes (EAOP). On one hand, it significantly improves the electro-chemical roughness factor of the electrode, solving the densification problem in this way. On the other hand, it worsens the electrochemical behavior of the electrode: narrowing its electrochemical window; and "activating" it slightly. The addition of coke before sintering changes the kinetic parameters, leading to a kinetic situation in which the accumulation of hydroxyl radicals is slightly lower. A balance must be sought: an intermediate coke content will improve significantly the electrochemical roughness factor of the electrode, but will only worsen slightly its electrochemical behavior, leading to an optimum (Sn, Sb, Cu)O EAOP anode.

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Enhanced Properties of Tin(IV) Oxide Based Materials by Field‐Activated Sintering

Cited by 28 publications

References 25 publications

Advanced ceramics in the SnO2–ZnO binary system

Advanced ceramics in the SnO2–ZnO binary system

Low temperature spark plasma sintering of tin oxide doped with tantalum oxide

Improvement of the Electrochemical Behavior of (Sb, Sn, Cu)O Ceramic Electrodes as Electrochemical Advanced Oxidation Anodes

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