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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Li, Q.
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Topics
Publications (24/24 displayed)
- 2024Advanced Materials for Energy Harvesting and Soft Robotics: Emerging Frontiers to Enhance Piezoelectric Performance and Functionalitycitations
- 2024ABC block copolymer micelles driving the thermogelation: scattering, imaging and spectroscopycitations
- 2023Signature of quantum criticality in cuprates by charge density fluctuationscitations
- 2023A feed direction cutting force prediction model and analysis for ceramic matrix composites C/SiC based on rotary ultrasonic profile millingcitations
- 2022Local Structural Investigation of (Ba,Ca)(Zr,Ti)O<sub>3</sub> and Ca(Zr,Ti)O<sub>3</sub> by X-Ray Fluorescence Holographycitations
- 2021Co-hydrothermal carbonization of swine and chicken manurecitations
- 2021Simulation of deterministic tyre noise based on a monopole substitution modelcitations
- 2020Knocking on giants' doors: I. The evolution of the dust-to-stellar mass ratio in distant dusty galaxies
- 2020In pursuit of giants. I. The evolution of the dust-to-stellar mass ratio in distant dusty galaxiescitations
- 2017Promotion of neuronal regeneration by using self-polymerized dendritic polypeptide scaffold for spinal cord tissue engineering.citations
- 2016Self-assembled periodical polycrystalline-ZnO/a-C nanolayers on Zn nanowire.citations
- 20151,2,4-Triazolium perfluorobutanesulfonate as an archetypal pure protic organic ionic plastic crystal electrolyte for all-solid-state fuel cellscitations
- 2015The effect of preparation method on the proton conductivity of indium doped tin pyrophosphatescitations
- 2015Experimental and theoretical investigations of the electronic band structure of metal-organic frameworks of HKUST-1 typecitations
- 2014Mechanical properties and microstructure of single-wall carbon nanotube/elastomeric epoxy composites with block copolymerscitations
- 2012Electric field computation for a 400 kV composite cross-armcitations
- 2012Nanosession: Multiferroic Thin Films and Heterostructures
- 2012Influence of MWCNT dispersion on corrosion behaviour of their Mg compositescitations
- 2012Temperature-dependent electrical, elastic and magnetic properties of sol–gel synthesized Bi0.9Ln0.1FeO3Ln = Nd, Sm)citations
- 2011Corrosion behaviour of multiwall carbon nanotube/magnesium composites in 3.5% NaClcitations
- 2008Two-color InGaAsGaAs quantum dot infrared photodetectors by selective area interdiffusioncitations
- 2007Ultrafast Terahertz Conductivity of Photoexcited Nanocrystalline Siliconcitations
- 2006Thermal and electrical conductivity of single- and multi-walled carbon nanotube-epoxy compositescitations
- 2004Carbon nanotube/epoxy resin composites using a block copolymer as a dispersing agentcitations
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article
The effect of preparation method on the proton conductivity of indium doped tin pyrophosphates
Abstract
<p>Indium doped tin pyrophosphates were prepared by three synthetic routes. A heterogeneous synthesis from metal oxides with excess phosphoric acid produces crystalline phosphate particles with a phosphorus rich amorphous phase along the grain boundaries. The amorphous phase prevents the agglomeration of particles, hydrolyzes in moist atmosphere as revealed by FT-IR and solid state NMR, and facilitates a high proton conductivity (above 2.5 × 10<sup>-2</sup> Scm<sup>- 1</sup>) with high stability at above 120 °C under a water partial pressure of 0.15 atm. This phase can be removed by washing with water, resulting in a dramatic decrease in conductivity as well as significant agglomeration of the particles, as evident in TEM and from particle size distribution measurements. Homogeneous synthesis with soluble metal acetates or chlorides as precursors results in a single crystalline phase with a small particle size, but strongly agglomerated, and a low conductivity at 10<sup>- 7</sup>-10<sup>- 6</sup> Scm<sup>- 1</sup> level. Further impregnation of the agglomerates with phosphoric acid does not lead to formation of the phosphorus rich amorphous layers on the surface of the crystals. An intermediate conductivity of 10<sup>- 3</sup> Scm<sup>- 1</sup> was observed for the acid treated phosphates from the chloride synthesis but no improvement for the acid treated phosphates from the acetate synthesis was observed.</p>