In-situ growth of graphene decorations for high-performance LiFePO4 cathode through solid-state reaction

Surface Modification of Carbon Fibres for Interface Improvement in Textile Composites

“…Iron was selected as the catalyst and pre-deposited on carbon fibres directly for the formation of carbon nano-tubes (CNT). Small holes were observed on some fracture surfaces of the CNT-grafted fibre composites and the formation of the pits was attributed to Bthe dissolution of iron into the carbon fibres^at the reaction temperature [13], leading to weakened carbon fibres. Also based on the CVD methods, Zhang et al [7] constructed in-situ 2D graphene sheets on the bulk metal substrates by introducing a trace amount of transition metal salts and solid carbon sources with strictly controlled content and ratio.…”

“…The mixed solution, made by dissolving ferrous sulfate heptahydrate (FeSO 4 · 7H 2 O) as the catalyst precursor and glucose monohydrate (C 6 H 12 O 6 · H 2 O) as the carbon source into deionized water at a weight ratio of 1:10:16, was used to coat the carbon fibre [7,13], aiming at the in-situ growth of porous carbon structures on the surface of carbon fibres. In order to exclude the possible effects of commercial sizing on the interfacial shear strength and to improve the uniformity of the porous Fig.…”

“…Using the first method, the carbon fibres were immersed into 65 wt% HNO 3 for 1.5 h. Another method allows the carbon fibres to be immersed in acetone solution for 48 h. After the removal of the size from the carbon fibre surface, the carbon fibres were fully immersed into the mixed solution mentioned above before drying the fibres in an oven at 80°C for 12 h. Then the samples were then transferred to the tube furnace with the protection of Ar/H 2 gas in a (95:5) ratio atmosphere. The maximum temperature was rasied to 950°C at a rate of 5°C/min and maintained for 6 h according to the findings in previous studies [7,[13][14][15]. Finally, the sample was cooled down to room temperature.…”

“…Inspired by the in situ growth of three-dimensional graphene coatings on nanomaterials [7,[12][13][14][15], this paper proposes a method of in-situ growth of graphene-related structure on the surface of carbon fibres, aiming for the improvement of the fibre/resin interface. A mixed solution of a catalyst, ferrous sulfate heptahydrate (FeSO 4 · 7H 2 O), and a carbon source, Dglucose monohydrate (C 6 H 12 O 6 · H 2 O), is used to treat the carbon fibres, before Heating the treated carbon fibres in a tube-furnace under specific conditions to in-situ grow a graphenerelated coating on the surface of carbon fibres.…”

Synthesis of Carbon-Coated LiFePO4Cathode Material by One-Step Microwave-Assisted Pyrolysis of Ionic Liquid Process

“…The polymeric sources include polypropylene, [9][10][11][12][13] polypyrrole, [14][15][16][17][18] polyvinyl alcohol 19,20 and polythiophene. 21,22 And the glucose, [23][24][25][26] citric acid 27,28 and lauric acid 29,30 are the widely used nonpolymeric sources. The polymeric sources are unstable at high temperature.…”