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Synthesis and characterization of diamonds using C3H5N3O as organic additive under high pressure and high temperature

Abstract

In the NiMnCo–C system, diamond single crystals have been successfully synthesized by adding C3H5N3O as organic additive under 5.5-6.2 GPa and 1280- 1320 °C. The synthesized diamonds are initially characterized using OM, SEM, FTIR, Raman, XPS and powder XRD. With the increase of the C3H5N3O contents, the color of diamonds changes from light yellow to green. The FTIR spetra of the diamond synthesized indacate that its ntrogen concentration increase with an ncrease of the C3H5N3O additive. The typical peaks of oxygen and hydrogen related are appear and the absorption intensity increase with addition of C3H5N3O. Raman spectrum and XRD spectrum show synthesized diamonds with well quality phase of crystallization. The XPS results again confirmed that oxygen, hydrogen and nitrogen related impurities exist in the diamond. It is meaningful provide reference data to further recognize the composition of nature diamond growth environment.

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Publication details

The article was received on 01 Jun 2018, accepted on 06 Aug 2018 and first published on 07 Aug 2018


Article type: Paper
DOI: 10.1039/C8CE00912K
Citation: CrystEngComm, 2018, Accepted Manuscript
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    Synthesis and characterization of diamonds using C3H5N3O as organic additive under high pressure and high temperature

    L. Guo, H. Ma, L. Chen, N. Chen, X. Miao, Y. Wang, S. Fang, Z. Yang, C. Fang and X. Jia, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE00912K

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