A sodium tantalum phosphate with a noncentrosymmetric structure: Na5Ta8P5O35

Zhang, Qiaoxin; Li, Rukang

doi:10.1016/j.jssc.2022.123544

Cited by 2 publications

(2 citation statements)

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“…The Ta 5+ being a [Xe]4f 14 5d 0 system the presence of the unpaired electron is nullified and therefore will possess much less or negligible magnetic moment. The magnetic moments observed in the Ta 5+ system like a noncentrosymmetric moiety of Na 5 Ta 8 P 5 O 35 is rather explained by the second-order Jahn− Teller distortion or by nonlinear effects for the Jahn−Teller distortions 35 which may be absent for the Sr 2 YbTaO 6 system. Therefore, mostly doping of the Ta in the double perovskites with Sr 2 YbRu 1−x Ta x O 6 series will surely lower the magnetic moment as can be observed in Table 5.…”

Section: Xps Analysismentioning

confidence: 96%

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr₂YbRu_1–xTa_xO₆ (x = 0, 0.25, 0.5, 0.75, and 1)

et al. 2023

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We report the effect of substitution of Ru by Ta in Sr 2 YbRuO 6 on its magnetic and photoelectrocatalytic properties. The powder X-ray diffraction data, was satisfactorily refined in the monoclinic space group, P2 1 /n. The DC magnetization studies indicated that Sr 2 YbRuO 6 shows antiferromagnetic interaction through Yb−O−Ru orbital ordering, with the highest Weiss temperature, among Sr 2 YbRu 1−x Ta x O 6 (x = 0, 0.25, 0.5, and 0.75) which have values of −148, −125, −118, and −102 K, respectively. The difference in observed and theoretical magnetic moments was found to increase as x increases. It was also observed that with the increase of Ta concentration in Sr 2 YbRu 1−x Ta x O 6 , the band gap increased almost linearly, from 1.78(1) eV (x = 0) to 2.08(1) (x = 0.75), and thereafter a sharp increase 2.65(1) eV (x = 1) was observed, with the lowering of energy level of valence band, along with disruption in orbital ordering as x increases. The photoelectrocatalytic oxygen evolution reaction (OER) studies carried out on the series yield a maximum photocurrent density of 17 μA/cm 2 and photoresponse current of 5.5 μA/cm 2 at 0.8 V at an onset potential at 0.29 V vs Ag/AgCl for Sr 2 YbRuO 6 . The XPS analysis showed Ta and Ru to be in +5/+4 oxidation states, with the highest concentration of Ru 4+ ion observed for Sr 2 YbRuO 6 . The presence of oxygen vacancies was confirmed by XPS as well as EPR studies.Article pubs.acs.org/IC

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Section: Xps Analysismentioning

confidence: 96%

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr₂YbRu_1–xTa_xO₆ (x = 0, 0.25, 0.5, 0.75, and 1)

et al. 2023

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“…A related scientific research study to explore the octahedral-coordinated d 0 transition metal phosphate system has been in progress. In 2022, two kinds of non-centrosymmetric tantalum phosphate crystals, Na 3 TaP 2 O 9 13 and Na 5 Ta 8 P 5 O 35 , 14 were discovered by our group. Both crystals had the characteristics of phase-matchability, a large band gap, a wide transmission range and high transmittance.…”

Section: Introductionmentioning

confidence: 99%

Na₁₁Ta₈P₇O₄₃: (Ta₈O₃₃) bi-capped triangular prisms connected by PO₄ groups resulting in a phase-matched second harmonic response

Lv,

2023

Dalton Trans.

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A sodium tantalum phosphate with a noncentrosymmetric structure: Na5Ta8P5O35

Cited by 2 publications

References 35 publications

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr₂YbRu_1–xTa_xO₆ (x = 0, 0.25, 0.5, 0.75, and 1)

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr₂YbRu_1–xTa_xO₆ (x = 0, 0.25, 0.5, 0.75, and 1)

Na₁₁Ta₈P₇O₄₃: (Ta₈O₃₃) bi-capped triangular prisms connected by PO₄ groups resulting in a phase-matched second harmonic response

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A sodium tantalum phosphate with a noncentrosymmetric structure: Na5Ta8P5O35

Cited by 2 publications

References 35 publications

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr2YbRu1–xTaxO6 (x = 0, 0.25, 0.5, 0.75, and 1)

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr2YbRu1–xTaxO6 (x = 0, 0.25, 0.5, 0.75, and 1)

Na11Ta8P7O43: (Ta8O33) bi-capped triangular prisms connected by PO4 groups resulting in a phase-matched second harmonic response

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Investigation of Photoelectrocatalytic and Magnetic Properties of Sr₂YbRu_1–xTa_xO₆ (x = 0, 0.25, 0.5, 0.75, and 1)

Investigation of Photoelectrocatalytic and Magnetic Properties of Sr₂YbRu_1–xTa_xO₆ (x = 0, 0.25, 0.5, 0.75, and 1)

Na₁₁Ta₈P₇O₄₃: (Ta₈O₃₃) bi-capped triangular prisms connected by PO₄ groups resulting in a phase-matched second harmonic response