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Temperature effects on formation of carbon-based nanomaterials from kraft ligninAuthor(s): Xuefeng Zhang; Qiangu Yan; El Barbary Hassan; Jinghao Li; Zhiyong Cai; Jilei Zhang
Source: Materials Letters. 203: 42-45.
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
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DescriptionThe 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.
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CitationZhang, Xuefeng; Yan, Qiangu; Hassan, El Barbary; Li, Jinghao; Cai, Zhiyong; Zhang, Jilei. 2017. Temperature effects on formation of carbon-based nanomaterials from kraft lignin. Materials Letters. 203: 42-45.
KeywordsKraft lignin, multi-layer graphene, formation mechanism, iron oxides nanoparticles, a-Fe nanoparticles
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