Large-scale synthesis of onion-like carbon nanoparticles by carbonization of phenolic resin

Zhao, Mingguo; Song, Huaihe; Chen, Xiaohong; Lian, Wentao

doi:10.1016/j.actamat.2007.07.013

Cited by 85 publications

(53 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…OLCs are spherical carbon nanoparticles, but unlike fullerenes [3,4] they consist not of just one but of several concentric stacks of graphene-like carbon shells. Depending on the synthesis method and processing parameters, the size of carbon onions may range from around 2-50 nm [5,6]. So far, carbon onions have been synthesized by several techniques, such as arc discharge [7][8][9], electron beam irradiation [2,10], catalytic decomposition of carbon-containing precursors [11][12][13][14], heat treatment of nanodiamonds [15][16][17], mechanical milling [18], carbon ion beam implantation [19,20], and detonation reactions [21].…”

Section: Introductionmentioning

confidence: 99%

Understanding structure and porosity of nanodiamond-derived carbon onions

Zeiger

Jäckel

Aslan

et al. 2015

Carbon

132

141

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Understanding structure and porosity of nanodiamond-derived carbon onions

Zeiger

Jäckel

Aslan

et al. 2015

Carbon

132

141

View full text Add to dashboard Cite

“…During this process, polymers first decompose to amorphous carbon (AC), after which AC, as the solid carbon source, dissolves in and precipitates out of the catalyst [16][17][18][19][20][21]. The dissolution and precipitation of AC is affected by the thermal treatment temperatures.…”

Section: Introductionmentioning

confidence: 99%

Carbon-Based Nanomaterials from Biopolymer Lignin via Catalytic Thermal Treatment at 700 to 1000 °C

Zhang

Yan

et al. 2018

Polymers

View full text Add to dashboard Cite

Abstract:We report the preparation of carbon-based nanomaterials from biopolymer kraft lignin via an iron catalytic thermal treatment process. Both the carbonaceous gases and amorphous carbon (AC) from lignin thermal decomposition were found to have participated in the formation of graphitic-carbon-encapsulated iron nanoparticles (GCEINs). GCEINs originating from carbonaceous gases have thick-walled graphitic-carbon layers (10 to 50) and form at a temperature of 700 • C. By contrast, GCEINs from AC usually have thin-walled graphitic-carbon layers (1 to 3) and form at a temperature of at least 800 • C. Iron catalyst nanoparticles started their phase transition from α-Fe to γ-Fe at 700 • C, and then from γ-Fe to Fe 3 C at 1000 • C. Furthermore, we derived a formula to calculate the maximum number of graphitic-carbon layers formed on iron nanoparticles via the AC dissolution-precipitation mechanism.

show abstract

“…With temperature increasing, Ni particles would react with the amorphous carbon to form CNCs. Due to this procedure, the slit-shaped mesopores formed, which may be derived from the interspaces of CNCs, CNC and carbon matrix and the gaps on the surface of CNCs [24]. During this procedure, however, some micropores could be reserved as indicated by the N 2 sorption isotherms (Fig.…”

mentioning

confidence: 97%

“…2 is the N 2 sorption isotherms of the CNC/CFoamx with high V meso /V micro , and these are typical type-IV curves which describe adsorption in mixed situations of micropores and mesopores. These isotherms exhibit clear hysteresis loop at higher p/p 0 , indicative of slit-shaped mesopore structures that may be derived from the interspaces of CNCs, CNC and carbon matrix, and the gaps on the surface of CNCs [24].…”

mentioning

confidence: 99%