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Title: Temperature effects on formation of carbon-based nanomaterials from kraft lignin

Source: Materials Letters. 203: 42-45.

Author(s)Zhang, Xuefeng ; Yan, Qiangu ; Hassan, El Barbary; Li, Jinghao ; Cai, Zhiyong ; Zhang, Jilei

Publication Year: 2017  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4706-3B

Abstract: The formation of carbon-based nanomaterials was investigated through heating iron nitrate promoted kraft lignin at different temperatures up to 600°C under argon gas at atmospheric pressure. High-resolution transmission electron microscopy and electron diffraction images showed that multi-layer turbostratic-structured graphene presented in samples heated at 600°C. X-ray diffraction results indicated that iron oxides nanoparticles started their formation as an amorphous carbon matrix at 300°C, and turned into α-Fe nanoparticles at 600°C. It is believed that the formation of observed multi-layer graphene materials is based on the dissolution and precipitation mechanism of carbonaceous gases from lignin decomposition acting as carbon sources and α-Fe working as the catalyst.

Keywords: Kraft lignin; multi-layer graphene; formation mechanism; iron oxides nanoparticles; a-Fe nanoparticles

Publication Review Process: Formally Refereed

File size: 1,024 kb(s)

Date posted: 09/27/2018

This publication is also viewable on Treesearch:  view
RITS Product ID: 92562
Current FPL Scientist associated with this product
Cai, Zhiyong
Supervisory Research Materials Engineer
  

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