Nickel niobate
Names
Other names
Nickel niobium oxide
Identifiers
3D model (JSmol)
  • [Ni+2].O=[Nb](=O)[O-].O=[Nb](=O)[O-]
Properties
Nb2NiO6
Molar mass 340.50256 g/mol[1]
Appearance Yellow powder[2]
Hazards[3]
GHS labelling:
GHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
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
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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

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. 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. 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. 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. 12: 2102972. doi:10.1002/aenm.202102972. ISSN 1614-6840. S2CID 244144580.
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