Effects of B and Ti addition and heat treatment temperature on graphitization behavior of Fe-0.55C-2.3Si steel

Kim, Ye Jin; Bae, Sang Woo; Kim, Sang-Hoon; Lim, Nam Seok; Park, Sung Hyuk

doi:10.1016/j.jmrt.2020.08.001

Cited by 3 publications

(4 citation statements)

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“…The mechanism is also commonly used in metallurgy to explain graphite nucleation and growth in liquid metals 32,33 . At the onset of catalytic graphitization, crystal nuclei were formed according to the dissolution–precipitation mechanism between carbon and Fe 21,23 . In the presence of catalysts at high temperatures, this nucleus grew in “ a ” (graphite crystal plane extension) and “ c ” (graphene layer stacking) directions to form a larger graphite crystalline structure.…”

Section: Resultsmentioning

confidence: 99%

“…32,33 At the onset of catalytic graphitization, crystal nuclei were formed according to the dissolution-precipitation mechanism between carbon and Fe. 21,23 In the presence of catalysts at high temperatures, this nucleus grew in "a" (graphite crystal plane extension) and "c" (graphene layer stacking) directions to form a larger graphite crystalline structure. High dispersion of iron catalyst favored the formation of the crystal nucleus, which resulted in relatively high G% and α values.…”

Section: Catalytic Graphitization Of Biocharmentioning

confidence: 99%

“…For decades, scientists have been researching catalytic graphitization to convert amorphous carbon from renewable sources into graphitic carbon 21,22 . So far, most research in this area has focused on developing more efficient catalysts, and corresponding catalytic graphitization processes 22–24 . Although bio‐based graphite is primarily used as battery anode material, other potential applications, such as metallurgy and refractory, have not yet been fully explored 25–27 .…”

Section: Introductionmentioning

confidence: 99%

“…21,22 So far, most research in this area has focused on developing more efficient catalysts, and corresponding catalytic graphitization processes. [22][23][24] Although bio-based graphite is primarily used as battery anode material, other potential applications, such as metallurgy and refractory, have not yet been fully explored. [25][26][27] In addition to solid carbon materials, it is important to consider other products that can be produced from biomass to achieve high resource efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Establishment of green graphite industry: Graphite from biomass and its various applications

Wang

Jin

et al. 2023

SusMat

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Resource-and energy-efficient biomass exploitation for green graphite production is one of the most effective strategies for satisfying graphite demand while minimizing energy consumption and carbon emissions. This study investigated green graphite production from biomass waste and its applications to establish a green graphite industry. Biomass pyrolysis and catalytic graphitization of biochar were studied first to produce green graphite. The optimized green graphite exhibited a reversible capacity of 264 mA h/g and 97% capacity retention over 100 cycles in a half-cell. Green graphite electrodes with a resistivity lower than 5 μΩ m were fabricated by using organic fraction bio-oil as a green binder. Other green graphite applications, including printing, conductive printing, pencils, and refractories, were also achieved. The overall process of graphite anode and electrode synthesis from biomass waste and short-rotation energy crops was modeled. Approx. 95 kg of battery graphite or 109 kg of metallurgical graphite electrodes can be produced per ton of biomass with low primary energy consumption and carbon footprint. Prominently, the modeling result and life cycle assessment demonstrated that, for the production of battery graphite from biomass waste, net-negative-CO 2 emissions (−0.57 kg CO 2 -eq/kg graphite powders) with net-negative-primary energy consumption (−28.31 MJ/kg graphite powders) was achieved.

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Section: Resultsmentioning

confidence: 99%