View in EDS

Experimental evidence of the pyroelectric nature of struvite.

Saved in:
Bibliographic Details
Title: Experimental evidence of the pyroelectric nature of struvite.
Authors: Cabassi, Riccardo1 (AUTHOR), Delmonte, Davide1 (AUTHOR), Prywer, Jolanta2 (AUTHOR) jolanta.prywer@p.lodz.pl
Source: CrystEngComm. 10/28/2024, Vol. 26 Issue 40, p5826-5829. 4p.
Subjects: Sewage disposal plants, Urinary calculi, Pyroelectricity, Tourmaline, Magnesium
Abstract: Struvite (MgNH4PO4·6H2O) is a mineral first identified in 1845. It is being tested for several reasons: (1) it is a problem in liquid wastewater treatment plants; (2) on the other hand, it is recovered from these wastewaters for its phosphorus, magnesium and nitrogen; (3) is the main component of microbial-induced urinary stones. We have recently shown that struvite is ferroelectric and piezoelectric. In this paper, we present the first experimental evidence of the pyroelectric nature of struvite. Using a single-diffusion gel growth technique, we grew struvite crystals as flat, parallel plates. We performed measurements of pyroelectric currents on struvite of this shape, using it as a dielectric of a plate capacitor. The occurrence of pyroelectric effects in struvite was investigated by measuring depolarization currents as a function of temperature. This technique allows the disclosure of ferroelectric/pyroelectric transitions as well as the reconstruction of the ferroelectric loop. We found that the value of the pyroelectric coefficient p attains a maximum of 22 × 10−6 C m−2 K−1 slightly below room temperature, going down to p ≅ 10 × 10−6 C m−2 K−1 at room temperature. This value is comparable to values for other minerals. For example, the pyroelectric polarization coefficient of tourmaline, the mineral for which the pyroelectric effect was first discovered, is 4 × 10−6 C m−2 K−1. This value is 2.5 times lower than that measured for struvite, illustrating struvite's fairly strong pyroelectricity. [ABSTRACT FROM AUTHOR]
Copyright of CrystEngComm is the property of Royal Society of Chemistry 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
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 180248830
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Experimental evidence of the pyroelectric nature of struvite.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Cabassi%2C+Riccardo%22">Cabassi, Riccardo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Delmonte%2C+Davide%22">Delmonte, Davide</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Prywer%2C+Jolanta%22">Prywer, Jolanta</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> jolanta.prywer@p.lodz.pl</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22CrystEngComm%22">CrystEngComm</searchLink>. 10/28/2024, Vol. 26 Issue 40, p5826-5829. 4p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Sewage+disposal+plants%22">Sewage disposal plants</searchLink><br /><searchLink fieldCode="DE" term="%22Urinary+calculi%22">Urinary calculi</searchLink><br /><searchLink fieldCode="DE" term="%22Pyroelectricity%22">Pyroelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Tourmaline%22">Tourmaline</searchLink><br /><searchLink fieldCode="DE" term="%22Magnesium%22">Magnesium</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Struvite (MgNH4PO4·6H2O) is a mineral first identified in 1845. It is being tested for several reasons: (1) it is a problem in liquid wastewater treatment plants; (2) on the other hand, it is recovered from these wastewaters for its phosphorus, magnesium and nitrogen; (3) is the main component of microbial-induced urinary stones. We have recently shown that struvite is ferroelectric and piezoelectric. In this paper, we present the first experimental evidence of the pyroelectric nature of struvite. Using a single-diffusion gel growth technique, we grew struvite crystals as flat, parallel plates. We performed measurements of pyroelectric currents on struvite of this shape, using it as a dielectric of a plate capacitor. The occurrence of pyroelectric effects in struvite was investigated by measuring depolarization currents as a function of temperature. This technique allows the disclosure of ferroelectric/pyroelectric transitions as well as the reconstruction of the ferroelectric loop. We found that the value of the pyroelectric coefficient p attains a maximum of 22 × 10−6 C m−2 K−1 slightly below room temperature, going down to p ≅ 10 × 10−6 C m−2 K−1 at room temperature. This value is comparable to values for other minerals. For example, the pyroelectric polarization coefficient of tourmaline, the mineral for which the pyroelectric effect was first discovered, is 4 × 10−6 C m−2 K−1. This value is 2.5 times lower than that measured for struvite, illustrating struvite's fairly strong pyroelectricity. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of CrystEngComm is the property of Royal Society of Chemistry 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=180248830
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1039/d4ce00908h
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 5826
    Subjects:
      – SubjectFull: Sewage disposal plants
        Type: general
      – SubjectFull: Urinary calculi
        Type: general
      – SubjectFull: Pyroelectricity
        Type: general
      – SubjectFull: Tourmaline
        Type: general
      – SubjectFull: Magnesium
        Type: general
    Titles:
      – TitleFull: Experimental evidence of the pyroelectric nature of struvite.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Cabassi, Riccardo
      – PersonEntity:
          Name:
            NameFull: Delmonte, Davide
      – PersonEntity:
          Name:
            NameFull: Prywer, Jolanta
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 28
              M: 10
              Text: 10/28/2024
              Type: published
              Y: 2024
          Identifiers:
            – Type: issn-print
              Value: 14668033
          Numbering:
            – Type: volume
              Value: 26
            – Type: issue
              Value: 40
          Titles:
            – TitleFull: CrystEngComm
              Type: main
ResultId 1