Nickel(III) oxide explained

Nickel (III) oxide is the inorganic compound with the formula Ni₂O₃. It is not well characterized, and is sometimes referred to as black nickel oxide. Traces of Ni₂O₃ on nickel surfaces have been mentioned.^{[1] [2]}

Nickel (III) oxide has been studied theoretically since the early 1930s,^[3] supporting its unstable nature at standard temperatures. A nanostructured pure phase of the material was synthesized and stabilized for the first time in 2015 from the reaction of nickel(II) nitrate with sodium hypochlorite and characterized using powder X-ray diffraction and electron microscopy.^[4]

Notes and References

1. Aggarwal. P. S.. Goswami. A.. 1961. An oxide of tervalent nickel. The Journal of Physical Chemistry. en. 65. 11. 2105. 10.1021/j100828a503. 0022-3654.
2. Kang. Jin-Kyu. Rhee. Shi-Woo. 2001. Chemical vapor deposition of nickel oxide films from Ni(C₅H₅)₂/O₂. Thin Solid Films. en. 391. 1. 57–61. 10.1016/S0040-6090(01)00962-2. 2001TSF...391...57K.
3. Cairns . R. W. . Ott . Emil . February 1933 . X-Ray Studies of the System Nickel—Oxygen—Water. I. Nickelous Oxide and Hydroxide 1 . Journal of the American Chemical Society . en . 55 . 2 . 527–533 . 10.1021/ja01329a013 . 0002-7863.
4. Dey . Sayan . Bhattacharjee . Swarupananda . Chaudhuri . Mahua Ghosh . Bose . Raj Shekhar . Halder . Suman . Ghosh . Chandan Kr . 2015-06-18 . Synthesis of pure nickel(III) oxide nanoparticles at room temperature for Cr(VI) ion removal . RSC Advances . en . 5 . 67 . 54717–54726 . 10.1039/C5RA05810D . 2015RSCAd...554717D . 2046-2069.