نيوبات النيكل

نيوبات النيكل
الأسماء
أسماء أخرى
Nickel niobium oxide
المُعرِّفات
رقم CAS
3D model (JSmol)
الخصائص
الصيغة الجزيئية Nb2NiO6
كتلة مولية 340.47 g mol-1
المظهر Yellow powder[2]
المخاطر[3]
ن.م.ع. مخطط تصويري The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)رمز الخطر على الصحة في النظام المنسق عالمياً لتصنيف وعنونة الكيماويات (GHS)رمز البيئة في النظام المنسق عالمياً لتصنيف وعنونة الكيماويات (GHS)
ن.م.ع. كلمة الاشارة Danger
H302, H315, H317, H319, H334, H341, H350, H360, H372, H412
P202, P260, P264, P270, P271, P272, P273, P280, P284, P301+P312, P302+P352, P304+P340, P305+P351+P338, P308+P311, P342+P311, P362+P364, P405, P501
ما لم يُذكر غير ذلك، البيانات المعطاة للمواد في حالاتهم العيارية (عند 25 °س [77 °ف]، 100 kPa).
مراجع الجدول

Nickel niobate is a complex oxide which as a solid material has found potential applications in catalysis and lithium batteries.

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Properties


Complexes

Nickel niobate has been added to other elements forming bismuth nickel niobate (Bi 2O 3-NiO-Nb 2O 5), providing a dense ceramic body at low sintering temperatures. Cubic pyrochlore, tetragonal pyrochlore, and other unknown phases were found.[4]

Single-phase perovskite ceramics of Pb(Ni 1/3Nb 2/3)O 3 (PNN) have been prepared by the columbite precursor method. Dielectric studies showed that ceramic Pb(Ni 1/3Nb 2/3)O 3 is a typical relaxor ferroelectric with properties like those of its single-crystals.[5]

Applications

Nickel niobate has been examined for use as a catalyst to reduce 4-nitrophenol due to a photo-synergistic effect that exploits the synergy between thermal active sites and photogenerated electrons.[6]

Nickel niobate has also been examined in an "open and regular" crystalline form for use as the anode in a lithium ion battery. It forms a porous, nano-scale structure that eliminates the dendrite formation that can cause short circuits and other problems. The material offers energy density of 244 mAh g−1 and retains 80%+ of its capacity across 20k cycles. The manufacturing process is straightforward and does not require a clean room.[7] The anode offers a diffusion coefficient of 10−12 cm2 s−1 at 300 K, which allows fast charging/dischargine at high current densities, yielding capacities of 140 and 50 mAh g−1 for 10 and 100C respectively.[8]

References

  1. ^ "NICKEL NIOBATE". www.chemicalbook.com. Retrieved 2021-11-17.
  2. ^ "Nickel Niobate | CAS 12059-60-8 | Lorad Chemical Corporation". loradchemical.com. Retrieved 2021-11-17.
  3. ^ "Nickel Niobate | CAS 12059-60-8 | Lorad Chemical Corporation". loradchemical.com.
  4. ^ Cai, Xiukai; Sun, Xiaobo; Pang, Lufeng (May 2017). "Bismuth nickel niobate with small negative temperature coefficients of dielectric constant". 2017 Joint IEEE International Symposium on the Applications of Ferroelectric (ISAF)/International Workshop on Acoustic Transduction Materials and Devices (IWATMD)/Piezoresponse Force Microscopy (PFM). pp. 30–32. doi:10.1109/ISAF.2017.8000204. ISBN 978-1-5090-4737-6. S2CID 24400333.
  5. ^ Alberta, Edward F.; Bhalla, Amar S. (2002-05-01). "Low-temperature properties of lead nickel-niobate ceramics". Materials Letters (in الإنجليزية). 54 (1): 47–54. doi:10.1016/S0167-577X(01)00538-9. ISSN 0167-577X.
  6. ^ Su, Yiguo; Xin, Xin; Wang, Yafang; Wang, Tingting; Wang, Xiaojing (2014-03-25). "Unprecedented catalytic performance in disordered nickel niobate through photo-synergistic promotion". Chemical Communications (in الإنجليزية). 50 (32): 4200–4202. doi:10.1039/C3CC49825E. ISSN 1364-548X. PMID 24626389.
  7. ^ Lavars, Nick (2021-11-16). ""Open" structure lithium battery material enables 10x faster charging". New Atlas (in الإنجليزية الأمريكية). Retrieved 2021-11-17.
  8. ^ Xia, Rui; Zhao, Kangning; Kuo, Liang-Yin; Zhang, Lei; Cunha, Daniel M.; Wang, Yang; Huang, Sizhao; Zheng, Jie; Boukamp, Bernard; Kaghazchi, Payam; Sun, Congli (2021). "Nickel Niobate Anodes for High Rate Lithium-Ion Batteries". Advanced Energy Materials (in الإنجليزية). 12: 2102972. doi:10.1002/aenm.202102972. ISSN 1614-6840. S2CID 244144580.

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