外文题目: Structural Studies of Bi2O3-NaPO3 Glasses by Solid State Nuclear Magnetic Resonance and X-ray Photoelectron Spectroscopy
作者: Zhang, Ruili; Ren, Jinjun; Yuan, Xinqiang; Cui, Yun; Zhang, Lei; Zhang, Long
刊名: J. Phys. Chem. C
年: 2017 卷: 121 期: 18 页： 10087--10094
英文关键词:

METAL OXIDE GLASSES; DOPED SILICA GLASS; OPTICAL AMPLIFICATION; QUADRUPOLAR NUCLEI; MULTISPIN SYSTEMS; NMR-SPECTROSCOPY; LUMINESCENCE; LASER; PHOSPHATES; PHOSPHORS
英文摘要:
Glasses in the system xBi(2)O(3)-(100 - x)NaPO3 were prepared using transitional melting quenching and characterized using solid state nuclear magnetic resonance (SSNMR), X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared spectroscopy (FT-IR). The addition of Bi2O3 results in the depolymerization of the phosphorus chain and the formation of Q((n)) (n = 0, 1, 2) phosphorus species, where n represents the number of P-Q-P bonds that can be quantified using P-31 magic angle spinning (MAS) NMR and constant-time double-quantum based,dipolar recoupling effects nuclear alignment reduction (CT-DQDRENAR). The Na-23{P-31}, P-31{Na-23}, and XPS results, consistently prove that both Na+ and Bi3+ ions are bounded by phosphorus tetrahedron [PO4](3-). Unlike other trivalent ions such as Ga3+ and Al3+, which connect with the phosphorus tetrahedron by corner-sharing, Bi3+ ions were first proved to share edge with the phosphorus tetrahedron by the analysis of P-31 spectra, taking the charge balance,and bond valence consideration into account. Such a difference in connectivity result in significant structural differences.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1021/acs.jpcc.7b01871


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