Institution
Cabot Corporation
Company•Boston, Massachusetts, United States•
About: Cabot Corporation is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Carbon black & Carbon. The organization has 1279 authors who have published 1399 publications receiving 36736 citations.
Topics: Carbon black, Carbon, Alloy, Oxide, Tantalum
Papers published on a yearly basis
Papers
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TL;DR: The overall weight of evidence indicates that carbon black should not be considered a direct genotoxicant or reproductive toxicant in humans.
Abstract: Carbon black is produced industrially by the partial combustion or thermal decomposition of gaseous or liquid hydrocarbons under controlled conditions. It is considered a poorly soluble, low toxicity (PSLT) particle. Recently, results from a number of published studies have suggested that carbon black may be directly genotoxic, and that it may also cause reproductive toxicity. Here, we review the evidence from these studies to determine whether carbon black is likely to act as a primary genotoxicant or reproductive toxicant in humans. For the genotoxicity endpoint, the available evidence clearly shows that carbon black does not directly interact with DNA. However, the study results are consistent with the mechanism that, at high enough concentrations, carbon black causes inflammation and oxidative stress in the lung leading to mutations, which is a secondary genotoxic mechanism. For the reproductive toxicity endpoint for carbon black, to date, there are various lung instillation studies and one short-term inhalation study that evaluated a selected number of reproduction endpoints (e.g. gestational and litter parameters) as well as other general endpoints (e.g. gene expression, neurofunction, DNA damage); usually at one time point or using a single dose. It is possible that some of the adverse effects observed in these studies may be the result of non-specific inflammatory effects caused by high exposure doses. An oral gavage study reported no adverse reproductive or developmental effects at the highest dose tested. The overall weight of evidence indicates that carbon black should not be considered a direct genotoxicant or reproductive toxicant.
51 citations
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01 Aug 2002TL;DR: In this paper, carbon composite electrocatalyst powders have a well-controlled microstructure and morphology, and the method includes forming the particles from an aerosol of precursors by heating the aerosol to a relatively low temperature.
Abstract: Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by heating the aerosol to a relatively low temperature, such as not greater than about 400° C.
51 citations
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51 citations
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10 Oct 2000TL;DR: In this paper, gas-diffusion electrodes containing modified carbon products are described, wherein the modified carbon product is a carbon product having attached at least one organic group and at least two hydrophilic groups.
Abstract: Gas-diffusion electrodes containing modified carbon products are described wherein the modified carbon product is a carbon product having attached at least one organic group. The modified carbon product comprises a carbon product having attached at least one hydrophobic organic group and at least one hydrophilic group. The modified carbon product can be used for at least one component of the electrodes such as the active layer and/or the blocking layer. Methods to extend the service life of electrodes as well as methods to reduce the amount of fluorine containing compounds are also described.
51 citations
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09 Apr 1998TL;DR: In this article, the authors proposed a process for producing low-density gel compositions without the need for a supercritical drying step or thermal treatment, which can be used to produce low density gel compositions.
Abstract: Processes for producing gel compositions comprising: esterifying a portion of the surface of a gel composition sufficient to produce a gel composition having a rod density of less than or equal to 0.27 g/cc, and/or a tap density of less than or equal to 0.2 g/cc through contact with at least one esterification agent and at least one catalyst. The processes may be utilized to produce low density gel compositions without the need for a supercritical drying step or thermal treatment.
51 citations
Authors
Showing all 1279 results
Name | H-index | Papers | Citations |
---|---|---|---|
Plamen Atanassov | 73 | 439 | 21442 |
Marek Skowronski | 48 | 264 | 7679 |
Toivo T. Kodas | 47 | 240 | 8342 |
Andrew A. Peterson | 41 | 87 | 12292 |
Hong Liang | 39 | 297 | 5981 |
Mark J. Hampden-Smith | 35 | 162 | 5631 |
Karel Vanheusden | 31 | 89 | 9289 |
Paolina Atanassova | 29 | 66 | 2919 |
Narasi Sridhar | 27 | 202 | 3017 |
James A. Belmont | 25 | 52 | 2387 |
Berislav Blizanac | 22 | 44 | 4047 |
Andreas Zimmermann | 21 | 71 | 1193 |
Quint H. Powell | 21 | 45 | 1918 |
Klaus Kunze | 21 | 37 | 2074 |
Rimple Bhatia | 21 | 49 | 1380 |