Structural, magnetic and electrochemical characteristics of Ni/C composites fabricated from modified hydrolytic lignin

•Hydrolytic lignin can use for fabrication of magnetic sorbents and materials for save of energy.•ZnCl2 and NiCl2 promotes the creation of the porosity and magnetization of the composite.•The porosity and crystalline phase of nickel in composite can be reason it’s of high capacitance. The synthesis...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2023-12, Vol.352, p.135120, Article 135120
Main Authors: Tsyganova, S.I., Yu. Fetisova, O., Velikanov, D.A., Taran, O.P.
Format: Article
Language:English
Subjects:
Carbonization
Hydrolytic lignin
Magnetic properties
Ni/C composite
Porosity
Specific capacity
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Hydrolytic lignin can use for fabrication of magnetic sorbents and materials for save of energy.•ZnCl2 and NiCl2 promotes the creation of the porosity and magnetization of the composite.•The porosity and crystalline phase of nickel in composite can be reason it’s of high capacitance. The synthesis of metal–carbon materials based on hydrolytic lignin by its modification with subsequent carbonation is studied. It is shown the modification of hydrolysis lignin with ZnCl2 and NiCl2 leads to a significant increase of specific surface area up to 716 m2/g and the apparent specific capacity up to 350F/g of carbonized composite. It was found out that fabricated Ni/C composites are characterized by a coercive force of 80–105 Oe, a saturation magnetization of 4–11 Gs∙cm3/g, and a residual magnetization of 0.28–0.45 Gs∙cm3/g. This indicates the prospects of their use as a magnetically soft material.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2023.135120