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Advanced Synthesis and 3D-AFM-Structural Features of Mono-Metalized Cyclotetraphosphates

Received: 12 March 2017     Accepted: 29 March 2017     Published: 19 April 2017
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Abstract

Solution route applying the precursor of metaldihydrogen phosphate dihydrate was used to synthesize M-cyclophosphatesat ambient temperature (cobalt (II) was selected as model for metal in these investigations). The precursor was fired and sintered at different temperatures (600, 800, 1000 and 1100°C) respectively to optimize best conditions to obtain Co2P4O12 crystal form with high purity. The products were monitored by both of XRD, IR spectra by additional to accurate imaging via scanning electron microscope (SEM) and AFM-microscopeto analyzesurface topology and microstructural features of the metal cyclotetraphosphate. Structural investigations via XRD proved that the product obtained at 1100°C is the best and fine structure with monoclinic structure phase and C12/C1 space group with lattice parameter a=11.809(2), b=8.293(1), c=9.923(2) A respectively. A visualized investigations were performed to confirm structure validity and stability at temperature of sintering (1100°C). Visualization studies indicated that variations of bond distances between Co1, Co2, P1 and P2 and different six oxygen atoms (O1, O2, O3, O4, O5 and O6) inside crystal lattice are responsible for increasing lattice flexibility factor (by controlling in shrinkage and expansion coefficient) and consequently increase its bonds stability to break.

Published in American Journal of Materials Synthesis and Processing (Volume 2, Issue 1)
DOI 10.11648/j.ajmsp.20170201.12
Page(s) 5-16
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Synthesis, Ceramics, XRD, IR, SEM, AFM, Visualization

References
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[14] Trojan, M.; Brandova´, D.; Paulik, F.; Arnold. M. Mechanism of the thermal dehydration of Co1/2Ca1/2(H2PO4)2.2H2O. J. Therm. Anal. Calorim.1990, 36, p.929.
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  • APA Style

    Khaled M. Elsabawy, A. El-Maghraby. (2017). Advanced Synthesis and 3D-AFM-Structural Features of Mono-Metalized Cyclotetraphosphates. American Journal of Materials Synthesis and Processing, 2(1), 5-16. https://doi.org/10.11648/j.ajmsp.20170201.12

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    ACS Style

    Khaled M. Elsabawy; A. El-Maghraby. Advanced Synthesis and 3D-AFM-Structural Features of Mono-Metalized Cyclotetraphosphates. Am. J. Mater. Synth. Process. 2017, 2(1), 5-16. doi: 10.11648/j.ajmsp.20170201.12

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    AMA Style

    Khaled M. Elsabawy, A. El-Maghraby. Advanced Synthesis and 3D-AFM-Structural Features of Mono-Metalized Cyclotetraphosphates. Am J Mater Synth Process. 2017;2(1):5-16. doi: 10.11648/j.ajmsp.20170201.12

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  • @article{10.11648/j.ajmsp.20170201.12,
      author = {Khaled M. Elsabawy and A. El-Maghraby},
      title = {Advanced Synthesis and 3D-AFM-Structural Features of Mono-Metalized Cyclotetraphosphates},
      journal = {American Journal of Materials Synthesis and Processing},
      volume = {2},
      number = {1},
      pages = {5-16},
      doi = {10.11648/j.ajmsp.20170201.12},
      url = {https://doi.org/10.11648/j.ajmsp.20170201.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmsp.20170201.12},
      abstract = {Solution route applying the precursor of metaldihydrogen phosphate dihydrate was used to synthesize M-cyclophosphatesat ambient temperature (cobalt (II) was selected as model for metal in these investigations). The precursor was fired and sintered at different temperatures (600, 800, 1000 and 1100°C) respectively to optimize best conditions to obtain Co2P4O12 crystal form with high purity. The products were monitored by both of XRD, IR spectra by additional to accurate imaging via scanning electron microscope (SEM) and AFM-microscopeto analyzesurface topology and microstructural features of the metal cyclotetraphosphate. Structural investigations via XRD proved that the product obtained at 1100°C is the best and fine structure with monoclinic structure phase and C12/C1 space group with lattice parameter a=11.809(2), b=8.293(1), c=9.923(2) A respectively. A visualized investigations were performed to confirm structure validity and stability at temperature of sintering (1100°C). Visualization studies indicated that variations of bond distances between Co1, Co2, P1 and P2 and different six oxygen atoms (O1, O2, O3, O4, O5 and O6) inside crystal lattice are responsible for increasing lattice flexibility factor (by controlling in shrinkage and expansion coefficient) and consequently increase its bonds stability to break.},
     year = {2017}
    }
    

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    T1  - Advanced Synthesis and 3D-AFM-Structural Features of Mono-Metalized Cyclotetraphosphates
    AU  - Khaled M. Elsabawy
    AU  - A. El-Maghraby
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    N1  - https://doi.org/10.11648/j.ajmsp.20170201.12
    DO  - 10.11648/j.ajmsp.20170201.12
    T2  - American Journal of Materials Synthesis and Processing
    JF  - American Journal of Materials Synthesis and Processing
    JO  - American Journal of Materials Synthesis and Processing
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    PB  - Science Publishing Group
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    UR  - https://doi.org/10.11648/j.ajmsp.20170201.12
    AB  - Solution route applying the precursor of metaldihydrogen phosphate dihydrate was used to synthesize M-cyclophosphatesat ambient temperature (cobalt (II) was selected as model for metal in these investigations). The precursor was fired and sintered at different temperatures (600, 800, 1000 and 1100°C) respectively to optimize best conditions to obtain Co2P4O12 crystal form with high purity. The products were monitored by both of XRD, IR spectra by additional to accurate imaging via scanning electron microscope (SEM) and AFM-microscopeto analyzesurface topology and microstructural features of the metal cyclotetraphosphate. Structural investigations via XRD proved that the product obtained at 1100°C is the best and fine structure with monoclinic structure phase and C12/C1 space group with lattice parameter a=11.809(2), b=8.293(1), c=9.923(2) A respectively. A visualized investigations were performed to confirm structure validity and stability at temperature of sintering (1100°C). Visualization studies indicated that variations of bond distances between Co1, Co2, P1 and P2 and different six oxygen atoms (O1, O2, O3, O4, O5 and O6) inside crystal lattice are responsible for increasing lattice flexibility factor (by controlling in shrinkage and expansion coefficient) and consequently increase its bonds stability to break.
    VL  - 2
    IS  - 1
    ER  - 

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Author Information
  • Materials Science Unit, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt

  • Department of Chemistry, Faculty of Science, Taif University, Taif, Kingdom of Saudi Arabia

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