View in EDS

The synthesis and characterization of germanium oxide aerogel

Saved in:
Bibliographic Details
Title: The synthesis and characterization of germanium oxide aerogel
Authors: Chen, Geng1,2,3, Chen, Bowei2,3,4, Liu, Tianshi1,2,3, Mei, Yang2,4, Ren, Hongbo2, Bi, Yutie2,3, Luo, Xuan2, Zhang, Lin1,2,3 zhlmy@sina.com
Source: Journal of Non-Crystalline Solids. Dec2012, Vol. 358 Issue 23, p3322-3326. 5p.
Subjects: Aerogel synthesis, Metallic oxides, Germanium compounds, Supercritical carbon dioxide, Thermogravimetry, Fourier transform infrared spectroscopy, Microstructure, Crystal structure
Abstract: Abstract: In the present work, we have shown the first detailed report of monolithic pure germanium oxide aerogel. The aerogels have been prepared by the sol–gel method and subsequent supercritical drying with carbon dioxide. The orthogonal tests with different molar ratios of reactants (Ge(OEt)4, H2O, EtOH, HCl) have been applied to analyze the influence of each reactant. The replacement of ethanol with other solvents resulted in immediate precipitation. A presumption was given for that phenomenon. Chemical and structural investigations of the as-synthesized aerogels have been performed by field-emission scanning electron microscope (FESEM), thermogravimetry (TG), fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD) and the Brunauer–Emmett–Teller (BET) method. The aerogels possessed a fine microstructure, a surface area of 155m2/g and a high percentage of mesopores. TG analysis showed excellent thermal stability with very small weight loss. FTIR diagram demonstrated the complete hydrolysis of germanium ethoxide and the corresponding chemical bonds have been observed. The result from XRD indicated that the porous material exhibited outstanding hexagonal crystalline structure. [Copyright &y& Elsevier]
Copyright of Journal of Non-Crystalline Solids 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
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 83215011
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: The synthesis and characterization of germanium oxide aerogel
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Geng%22">Chen, Geng</searchLink><relatesTo>1,2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Bowei%22">Chen, Bowei</searchLink><relatesTo>2,3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Tianshi%22">Liu, Tianshi</searchLink><relatesTo>1,2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Mei%2C+Yang%22">Mei, Yang</searchLink><relatesTo>2,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Ren%2C+Hongbo%22">Ren, Hongbo</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Bi%2C+Yutie%22">Bi, Yutie</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Luo%2C+Xuan%22">Luo, Xuan</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Lin%22">Zhang, Lin</searchLink><relatesTo>1,2,3</relatesTo><i> zhlmy@sina.com</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Non-Crystalline+Solids%22">Journal of Non-Crystalline Solids</searchLink>. Dec2012, Vol. 358 Issue 23, p3322-3326. 5p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Aerogel+synthesis%22">Aerogel synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+oxides%22">Metallic oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Germanium+compounds%22">Germanium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Supercritical+carbon+dioxide%22">Supercritical carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Thermogravimetry%22">Thermogravimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: In the present work, we have shown the first detailed report of monolithic pure germanium oxide aerogel. The aerogels have been prepared by the sol–gel method and subsequent supercritical drying with carbon dioxide. The orthogonal tests with different molar ratios of reactants (Ge(OEt)4, H2O, EtOH, HCl) have been applied to analyze the influence of each reactant. The replacement of ethanol with other solvents resulted in immediate precipitation. A presumption was given for that phenomenon. Chemical and structural investigations of the as-synthesized aerogels have been performed by field-emission scanning electron microscope (FESEM), thermogravimetry (TG), fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD) and the Brunauer–Emmett–Teller (BET) method. The aerogels possessed a fine microstructure, a surface area of 155m2/g and a high percentage of mesopores. TG analysis showed excellent thermal stability with very small weight loss. FTIR diagram demonstrated the complete hydrolysis of germanium ethoxide and the corresponding chemical bonds have been observed. The result from XRD indicated that the porous material exhibited outstanding hexagonal crystalline structure. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Non-Crystalline Solids 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=83215011
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jnoncrysol.2012.08.028
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 3322
    Subjects:
      – SubjectFull: Aerogel synthesis
        Type: general
      – SubjectFull: Metallic oxides
        Type: general
      – SubjectFull: Germanium compounds
        Type: general
      – SubjectFull: Supercritical carbon dioxide
        Type: general
      – SubjectFull: Thermogravimetry
        Type: general
      – SubjectFull: Fourier transform infrared spectroscopy
        Type: general
      – SubjectFull: Microstructure
        Type: general
      – SubjectFull: Crystal structure
        Type: general
    Titles:
      – TitleFull: The synthesis and characterization of germanium oxide aerogel
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Chen, Geng
      – PersonEntity:
          Name:
            NameFull: Chen, Bowei
      – PersonEntity:
          Name:
            NameFull: Liu, Tianshi
      – PersonEntity:
          Name:
            NameFull: Mei, Yang
      – PersonEntity:
          Name:
            NameFull: Ren, Hongbo
      – PersonEntity:
          Name:
            NameFull: Bi, Yutie
      – PersonEntity:
          Name:
            NameFull: Luo, Xuan
      – PersonEntity:
          Name:
            NameFull: Zhang, Lin
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 12
              Text: Dec2012
              Type: published
              Y: 2012
          Identifiers:
            – Type: issn-print
              Value: 00223093
          Numbering:
            – Type: volume
              Value: 358
            – Type: issue
              Value: 23
          Titles:
            – TitleFull: Journal of Non-Crystalline Solids
              Type: main
ResultId 1