Synthesis and microstructure studies of nano-sized cerium-zinc phosphates

Hanna, Adly Abdella; Mousa, Ahmed S.; Sherief, Marwa A.; Elkomy, Gehan Mahmoud

doi:10.5155/eurjchem.2.4.503-508.441

Eur. J. Chem.

2011

DOI: 10.5155/eurjchem.2.4.503-508.441

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Synthesis and microstructure studies of nano-sized cerium-zinc phosphates

Adly Abdella Hanna

Ahmed S. Mousa

Marwa A. Sherief

et al.

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2014

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“…As we continue our policy for preparation and application of the metal phosphates (12)(13)(14)(15) . This work aimed to prepare and characterize YPO 4 and its substituted samples with Mg 2 P 2 O 7 to be used as new humidity sensors based on the dependence of the electric conductivity on the relative humidity.…”

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Studies on Preparation, Characterization and Humidity Sensing of Mg- Substituted YPO4

2014

Egypt. J. Chem.

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PO 4 and Mg 2 P 2 O 7 mixed ceramic semiconductor samples were .........prepared and investigated to be used as humidity sensors. The samples were characterized using XRD. Surface area, SEM, and electrical conductivity under the effect of humidity at room temperature were measured and discussed. X-ray patterns showed the formation of YPO 4 in tetragonal phase and Mg 2 P 2 O 7 in monoclinic form. Adding Mg 2 P 2 O 7 improves the surface area of YPO 4 which affected the electric conductivity. The humidity sensing of the pure and mixture samples was studied by dependences of the electrical conductivity on the mixture content and the sensitivity was also calculated. The results indicated that the electrical conductivity increased as relative humidity increased up to 76% due to the protonic conductivity which specified the action of water content on the phosphate molecules. After 76% relative humidity (RH), the value the electrical conductivity and sensitivity started to decrease due to the blocking of the phosphates molecules under high humidity value.

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Studies on Preparation, Characterization and Humidity Sensing of Mg- Substituted YPO4

2014

Egypt. J. Chem.

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Synthesis and microstructure studies of nano-sized cerium-zinc phosphates

Cited by 1 publication

References 22 publications

Studies on Preparation, Characterization and Humidity Sensing of Mg- Substituted YPO4

Studies on Preparation, Characterization and Humidity Sensing of Mg- Substituted YPO4

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