scholarly journals Correction to: Preparation of high-crystallinity synthetic graphite from hard carbon-based carbon black

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
Min Il Kim ◽  
Jong Hoon Cho ◽  
Jin Ung Hwang ◽  
Byong Chol Bai ◽  
Ji Sun Im
Keyword(s):  
Carbon Black ◽  
Hard Carbon ◽  
High Crystallinity ◽  
Synthetic Graphite ◽  
Carbon Based

Preparation of high-crystallinity synthetic graphite from hard carbon-based carbon black

2021 ◽  
Vol 127 (2) ◽  
Author(s):  
Min Il Kim ◽  
Jong Hoon Cho ◽  
Jin Ung Hwang ◽  
Byong Chol Bai ◽  
Ji Sun Im
Keyword(s):  
Carbon Black ◽  
Hard Carbon ◽  
High Crystallinity ◽  
Synthetic Graphite ◽  
Carbon Based

scholarly journals Thermal and Physical Characterization of PEG Phase Change Materials Enhanced by Carbon-Based Nanoparticles

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1168 ◽  
Author(s):  
David Cabaleiro ◽  
Samah Hamze ◽  
Jacek Fal ◽  
Marco A. Marcos ◽  
Patrice Estellé ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Surface Tension ◽  
Carbon Black ◽  
Phase Change ◽  
Phase Change Materials ◽  
Physical Characterization ◽  
Plastic Behavior ◽  
Diamond Nanopowders ◽  
Carbon Based

This paper presents the preparation and thermal/physical characterization of phase change materials (PCMs) based on poly(ethylene glycol) 400 g·mol−1 and nano-enhanced by either carbon black (CB), a raw graphite/diamond nanomixture (G/D-r), a purified graphite/diamond nanomixture (G/D-p) or nano-Diamond nanopowders with purity grades of 87% or 97% (nD87 and nD97, respectively). Differential scanning calorimetry and oscillatory rheology experiments were used to provide an insight into the thermal and mechanical changes taking place during solid-liquid phase transitions of the carbon-based suspensions. PEG400-based samples loaded with 1.0 wt.% of raw graphite/diamond nanomixture (G/D-r) exhibited the lowest sub-cooling effect (with a reduction of ~2 K regarding neat PEG400). The influences that the type of carbon-based nanoadditive and nanoparticle loading (0.50 and 1.0 wt.%) have on dynamic viscosity, thermal conductivity, density and surface tension were also investigated in the temperature range from 288 to 318 K. Non-linear rheological experiments showed that all dispersions exhibited a non-Newtonian pseudo-plastic behavior, which was more noticeable in the case of carbon black nanofluids at low shear rates. The highest enhancements in thermal conductivity were observed for graphite/diamond nanomixtures (3.3–3.6%), while nano-diamond suspensions showed the largest modifications in density (0.64–0.66%). Reductions in surface tension were measured for the two nano-diamond nanopowders (nD87 and nD97), while slight increases (within experimental uncertainties) were observed for dispersions prepared using the other three carbon-based nanopowders. Finally, a good agreement was observed between the experimental surface tension measurements performed using a Du Noüy ring tensiometer and a drop-shape analyzer.

Synthesis of few-layer graphene-like sheets from carbon-based powders via electrochemical exfoliation, using carbon black as an example

2017 ◽  
Vol 52 (18) ◽  
pp. 11004-11013 ◽  
Author(s):  
Saad Asadullah Sharief ◽  
Rahmat Agung Susantyoko ◽  
Mayada Alhashem ◽  
Saif Almheiri
Keyword(s):  
Carbon Black ◽  
Electrochemical Exfoliation ◽  
Layer Graphene ◽  
Few Layer Graphene ◽  
Carbon Based

scholarly journals Hard Carbon Derived from Avocado Peels as a High-Capacity, High-Performance Anode Material for Sodium-Ion Batteries

2021 ◽  
Author(s):  
Francielli Genier ◽  
Shreyas Pathreeker ◽  
Robson Schuarca ◽  
Mohammad Islam ◽  
Ian Hosein
Keyword(s):  
High Performance ◽  
High Capacity ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hard Carbon ◽  
Storage Technologies ◽  
Carbon Based

Deriving battery grade materials from natural sources is a key element to establishing sustainable energy storage technologies. In this work, we present the use of avocado peels as a sustainable source for conversion into hard carbon based anodes for sodium ion batteries. The avocado peels are simply washed and dried then proceeded to a high temperature conversion step. Materials characterization reveals conversion of the avocado peels in high purity, highly porous hard carbon powders. When prepared as anode materials they show to the capability to reversibly store and release sodium ions. The hard carbon-based electrodes exhibit excellent cycling performance, namely, a reversible capacity of 352.55 mAh/g at 0.05 A/g, rate capability up to 86 mAh/g at 3500 mA/g, capacity retention of >90%, and 99.9% coulombic efficiencies after 500 cycles. This study demonstrates avocado derived hard carbon as a sustainable source that can provide excellent electrochemical and battery performance as anodes in sodium ion batteries.

Carbon-Based Materials from Borassus flabellifer and their Applications

2021 ◽  
Vol 10 (4) ◽  
pp. 08-12
Author(s):  
C. Thevamirtha ◽  
Sherin Monichan ◽  
P. Mosae Selvakumar
Keyword(s):  
Sustainable Development ◽  
Activated Carbon ◽  
Water Purification ◽  
Anode Materials ◽  
Carbon Materials ◽  
Low Cost ◽  
Carbon Nanodots ◽  
Hard Carbon ◽  
High Demand ◽  
Carbon Based

Plant-based carbon materials are a high-demand source nowadays, as they are low-cost, eco-friendly, easily available, and sustainable.  Borassus flabellifer (Palmyra palm) is a gift of nature that gives numerous benefits, as all parts of the tree can be used for multiple purposes. Palmyraculture is the practice of cultivating Palmyra palms and utilizing them to live a self-reliant life in working towards sustainable development. Due to the advancement of technology, Borassus flabellifer is used to synthesize carbon materials, including hard carbon, carbon nanodots, charcoal, and activated carbon.  These carbon materials can be used in electrochemistry as anode materials, biosensing, bioimaging, catalysts, and water purification. This review mainly focuses on the carbon materials derived from the Borassus flabellifer, their applications in various fields, and further aspects that have to be considered.

scholarly journals Preparation and Characterization of Core-Shell Structure Hard Carbon/Si-Carbon Composites with Multiple Shell Structures as Anode Materials for Lithium-Ion Batteries

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2104
Author(s):  
Jong-Chan Kim ◽  
Kyung-Jin Kim ◽  
Sung-Man Lee
Keyword(s):  
Carbon Black ◽  
Black Carbon ◽  
Lithium Ion ◽  
Core Shell ◽  
Carbon Composites ◽  
Electrochemical Performances ◽  
Hard Carbon ◽  
Graphite Nanosheets ◽  
The Core ◽  
Core Shell Structure

Novel core-shell structure hard carbon/Si-carbon composites are prepared, and their electrochemical performances as an anode material for lithium-ion batteries are reported. Three different types of shell coating are applied using Si-carbon, Si-carbon black-carbon and Si-carbon black-carbon/graphite nanosheets. It appears that the use of n-Si/carbon black/carbon composite particles in place of n-Si for the shell coating is of great importance to achieve enhanced electrochemical performances from the core-shell composite samples, and additional wrapping with graphite nanosheets leads to a more stable cycle performance of the core-shell composites.

Elastic response of Carbon Black reinforced polyester based composites using micromechanical models: Role of interphase

2022 ◽  
pp. 239779142110701
Author(s):  
Mehdi Karevan
Keyword(s):  
Carbon Black ◽  
Thermal Studies ◽  
Elastic Response ◽  
Elastic Behavior ◽  
Analytical Prediction ◽  
Morphological Studies ◽  
Micromechanical Models ◽  
The Impact ◽  
Carbon Based

Carbon-based reinforcements have been widely reported in improving mechanical properties of polymers. However, still few studies exist on the incorporation of the interphase as a result of the interfacial interactions into analytical prediction tools. To better understand the effect of interfacial interphase, this study compares and correlates the experimental mechanical response of polyester based composites filled with carbon black (CB) with the elastic behavior obtained from the micromechanical models. Mold cast composites of polyester reinforced with 0 wt%–10 wt% of CB were fabricated. To determine the length of cooperative rearranging region (CRR) as a measure of the interphase, thermal studies focusing on the variations in the specific heat capacity or the relaxation strength of the composites around the glass transition temperature ( Tg) range were performed using a thermodynamical model. Micromechanical models such as the Halpin-Tsai and Tandon-Weng were used to determine the Young’s modulus with respect to the CB wt% and diameter as well as the interphase thickness and modulus. The results exhibited the sensitivity of the models to the existence of the interphase as a secondary mechanism, which was correlated to the cross-link density and interfacial bonding. The impact results showed the decrease in the impact resistance upon the addition of higher filler loadings ascribed to the destroyed bonding at the interface and CBs agglomeration confirmed by morphological studies. The research results can be further utilized in the explanation of the changes in the elastic response of carbon-based reinforced thermosetting composites emphasizing the key role of interphase.

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