Universidad Complutense de Madrid
E-Prints Complutense

From spent alkaline batteries to Zn_xMn_3__xO_4 by_xO4 by a hydrometallurgical route: synthesis and characterization

Impacto

Downloads

Downloads per month over past year

Alcaraz Romo, Lorena and Lopez Fernandez, Ana and García Díaz, Irene and Fernández Sánchez, Paloma and Urbieta Quiroga, Ana Irene and López, Félix A. (2018) From spent alkaline batteries to Zn_xMn_3__xO_4 by_xO4 by a hydrometallurgical route: synthesis and characterization. RSC advances, 8 (58). pp. 33496-33505. ISSN 2046-2069

[img]
Preview
PDF
Creative Commons Attribution.

1MB

Official URL: http://dx.doi.org/10.1039/c8ra06789a


URLURL Type
https://pubs.rsc.orgPublisher


Abstract

A series of Zn/Mn binary oxides with different molar ratios (1.4-11) were synthesized via co-precipitation from a solution obtained through the acidic (HCl) leaching of a black mass originating from the mechanical recycling of spent alkaline and Zn-C batteries. The oxides obtained were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Magnetic properties of the samples were also investigated. The Raman spectroscopy results showed all the binary metallic oxides belong to the ZnxMn3-xO4 (0.25 <= x >= 1.75) type. All showed a spinel crystalline structure. The saturation magnetization decreases with the Zn_xMn_3_xO_4 (0.25 # x $ 1.75) type. All showed a spinel crystalline structure. The saturation magnetization decreases with the Zn/Mn molar ratio; a maximum of 13.19 emu g__1 was found for the molar ratio of 11 at the Curie temperature (25.5 K). XPS showed that all the synthesized compounds contained Mn_2_+, Mn_3_+ and Mn4+. Mn_2_+ was the most prominent at a molar ratio of 11, Mn_3_+ was most common at a molar ratio of 2, and Mn_4_+ at 1.4.


Item Type:Article
Additional Information:

© The Royal Society of Chemistry 2018.
Lorena Alcaraz was funded by the Comunidad de Madrid vía a Postdoctoral Grant (Ref. PEJD-2016/AMN-2314) contract co-nanced by the European Social Fund. Ana López Fernández was funded by the Comunidad de Madrid vía a Junior Technical Grant (Ref. PEJ15/AMB/Al-0049) contract co-financed by the European Social Fund. This work has been partially supported by MINECO/FEDER (MAT2015-65274-R).

Uncontrolled Keywords:Lithium-Ion batteries; Room-temperature ferromagnetism; Ray photoelectron-spectroscopy; Mn-Doped Zno; Anode material; Zinc-carbon; Supercapacitor applications; Photocatalytic degradation; Electron-spectroscopy; Mn3o4 nanoparticles
Subjects:Sciences > Physics > Materials
ID Code:50436
Deposited On:20 Dec 2018 19:32
Last Modified:08 Jan 2019 09:38

Origin of downloads

Repository Staff Only: item control page