Porous media reinforced with carbon soots

Fals, Andres E.; Hadjiev, V. G.; Hernández, Francisco C. Robles

doi:10.1016/j.matchemphys.2013.04.019

Cited by 11 publications

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here we identify the presence of the reflections around 40-45; 2θ degrees. Those reflections were previously reported as diamond peaks [24][25][26][27], and more recently are attributed to a new carbon allotrope [28]. This allotrope has sixfold helical chains forming pure sp 2 arrangements.…”

Section: X-rays Diffractionmentioning

confidence: 79%

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

Estrada-Guel

Hernandez

Martínez-Sánchez

2015

Materials Characterization

View full text Add to dashboard Cite

In the present work, we proposed a method to manufacture exfoliated graphene. This method is low cost and environmentally friendly by mechanochemical means and avoids the use of highly corrosive and dangerous reagents. Our raw material consists of natural graphite and sodium carbonate. The mix is milled followed by a citric acid treatment used as defoliation agents. The mixture consists of an equiatomic mix of graphite and sodium carbonate that is processed in a high-energy ball mill. The milled and raw mixtures are leached with an aqueous acid solution, hot refluxed, washed, and overnight dried. Observed morphological and chemical evidence exhibits a notable reduction of particle size with an important increased level of defoliation that improved the surface area values.

show abstract

Section: X-rays Diffractionmentioning

confidence: 79%

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

Estrada-Guel

Hernandez

Martínez-Sánchez

2015

Materials Characterization

View full text Add to dashboard Cite

show abstract

“…The main goal is to identify the effect of milling in the synthesis of this new allotrope. In our previous work [17][18][19][20][21][22] we identified a crystalline carbon structure that do not correspond to any known phase of carbon. The identification was closed to a diamond-like structure based on the reported structures known as 2H and 4H in [23] Table 1.…”

Section: Resultsmentioning

confidence: 99%

Morphed graphene nanostructures: Experimental evidence for existence

Calderón

Estrada-Guel

Alvarez-Ramírez

et al. 2016

Carbon

Self Cite

View full text Add to dashboard Cite

We present experimental evidence for morphed graphene nanostructures in which corrugated graphene layers are cross-linked covalently thus making either sp 2 or sp 3 type carbon allotropes. The structures are akin to recently derived by ab initio simulations [1] hexagonal carbon allotropes with R-3m crystal symmetry. The morphing effect comes from the hexagonal carbon rings bridging graphene-like layers. The key technological approach is by means of high-energy milling of amorphous carbon soot derived from fullerene production. The morphed graphene nanostructures are documented by a thorough characterization using HRTEM, XRD, and spectroscopies.

show abstract

“…We now establish the experimental connection of rh6 carbon. Several experiments in recent years have discovered a new carbon structure in detonation soot or similar materials 20 21 22 23 24 25 26 27 28 29 30 , but have not been able to identify its structural features that hold the key to further understanding and exploration of this new carbon phase. Experimental x-ray diffraction (XRD) of a TNT/dissel oil detonation soot 28 (see Fig.…”

Section: Resultsmentioning

confidence: 99%

“…This finding suggests a new approach to constructing covalent network structures. In particular, the matching helical chain configuration offers a new strategy for solving structures of yet unidentified carbon phases seen in recent experiments, including carbon blacks, soot, or similar materials 20 21 22 23 24 25 26 27 28 29 30 .…”

mentioning

confidence: 99%

A New Carbon Allotrope with Six-Fold Helical Chains in all-sp2 Bonding Networks

Wang

Chen

Wang

et al. 2014

Sci Rep

View full text Add to dashboard Cite

Using a recently developed approach to constructing covalent network structures from linear carbyne, we identify by ab initio calculations a new carbon allotrope in () symmetry that comprises six-fold helical chains with alternating sp2-type single and double bonds along the chains that are connected via zigzag benzene rings. This 6-fold carbene is characterized as a three-dimensional three-connected chiral crystalline modification of graphite. Phonon and electronic band calculations indicate that this new structure is dynamically stable and is a semiconductor with a band gap of 0.47 eV, in contrast to the semimetallic nature of graphite. Simulated x-ray diffraction patterns of the 6-fold carbene provide an excellent match to the previously unexplained distinct diffraction peak of a new carbon allotrope found in recent detonation experiments. These results establish a new carbon phase and offer insights into its outstanding structural and electronic properties.

show abstract

Porous media reinforced with carbon soots

Cited by 11 publications

References 39 publications

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

Morphed graphene nanostructures: Experimental evidence for existence

A New Carbon Allotrope with Six-Fold Helical Chains in all-sp2 Bonding Networks

Contact Info

Product

Resources

About