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Superionic–protonic behavior of a new mixed sodium dihydrogen phosphate–arsenate at room temperature

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Title: Superionic–protonic behavior of a new mixed sodium dihydrogen phosphate–arsenate at room temperature
Authors: Jarraya, Khaled1 khaledjarraya@yahoo.fr, Ennaceur, Nasreddine1,2, El Marssi, Mimoun2, Mhiri, Tahar1
Source: Physica B. Apr2011, Vol. 406 Issue 8, p1546-1549. 4p.
Subjects: Mixtures, Phase transitions, Electric conductivity, Relaxation phenomena, Spectrum analysis, Transport theory, Sodium compounds
Abstract: Abstract: The elaborate mixed material of the formula NaH2(PO4)0.48(AsO4)0.52·H2O denoted by NDAP belongs to a group of compounds having properties that are intermediate between those of a normal salt and an acid, and undergoes a transition from a paraelectric to a superprotonic phase transition at room temperature. The temperature phase transition (296K) leading to a superionic–protonic phase characterized by an unusual high conductivity at room temperature was found. The conductivity relaxation parameters associated with the high-disorder protonic conduction have been determined from the analysis of the M″/M″ max spectrum and measured in a wide temperature range. Transport properties in this material appear to be due to proton hopping mechanism. [Copyright &y& Elsevier]
Copyright of Physica B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 59172074
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: <searchLink fieldCode="JN" term="%22Physica+B%22">Physica B</searchLink>. Apr2011, Vol. 406 Issue 8, p1546-1549. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Mixtures%22">Mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Relaxation+phenomena%22">Relaxation phenomena</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Transport+theory%22">Transport theory</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium+compounds%22">Sodium compounds</searchLink>
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  Data: Abstract: The elaborate mixed material of the formula NaH2(PO4)0.48(AsO4)0.52·H2O denoted by NDAP belongs to a group of compounds having properties that are intermediate between those of a normal salt and an acid, and undergoes a transition from a paraelectric to a superprotonic phase transition at room temperature. The temperature phase transition (296K) leading to a superionic–protonic phase characterized by an unusual high conductivity at room temperature was found. The conductivity relaxation parameters associated with the high-disorder protonic conduction have been determined from the analysis of the M″/M″ max spectrum and measured in a wide temperature range. Transport properties in this material appear to be due to proton hopping mechanism. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Physica B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.physb.2011.01.066
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      – Code: eng
        Text: English
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        PageCount: 4
        StartPage: 1546
    Subjects:
      – SubjectFull: Mixtures
        Type: general
      – SubjectFull: Phase transitions
        Type: general
      – SubjectFull: Electric conductivity
        Type: general
      – SubjectFull: Relaxation phenomena
        Type: general
      – SubjectFull: Spectrum analysis
        Type: general
      – SubjectFull: Transport theory
        Type: general
      – SubjectFull: Sodium compounds
        Type: general
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      – TitleFull: Superionic–protonic behavior of a new mixed sodium dihydrogen phosphate–arsenate at room temperature
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              Text: Apr2011
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