Ageing remarkably alters the toxicity of carbon black particles towards susceptible cells: determined by differential changes of surface oxygen groups

2020 ◽  
Vol 7 (6) ◽  
pp. 1633-1641
Author(s):  
Shuting Wei ◽  
Yu Qi ◽  
Li Ma ◽  
Yongchun Liu ◽  
Guangke Li ◽  
...  
Keyword(s):  
Carbon Black ◽  
Ageing Process ◽  
Surface Oxygen ◽  
Surface Oxygen Groups ◽  
Oxygen Groups

Ageing process remarkably alters the toxicity of carbon black particles towards susceptible cells via changing the species of their surface oxygen groups.

Water isotherms of activated carbons with small amounts of surface oxygen groups: fitting the mesopore region

Carbon ◽  
2001 ◽  
Vol 39 (2) ◽  
pp. 309-310 ◽  
Author(s):  
P Lodewyckx ◽  
D Van Rompaey ◽  
L Verhoeven ◽  
E.F Vansant
Keyword(s):  
Activated Carbons ◽  
Surface Oxygen ◽  
Surface Oxygen Groups ◽  
Oxygen Groups

Contribution of surface oxygen groups to the measured capacitance of porous carbon supercapacitors

2018 ◽  
Vol 395 ◽  
pp. 271-279 ◽  
Author(s):  
Jocelyn E. Zuliani ◽  
Shitang Tong ◽  
Charles Q. Jia ◽  
Donald W. Kirk
Keyword(s):  
Porous Carbon ◽  
Surface Oxygen ◽  
Surface Oxygen Groups ◽  
Oxygen Groups ◽  
Carbon Supercapacitors

Catalytic properties of a Rh–diamine complex anchored on activated carbon: Effect of different surface oxygen groups

2007 ◽  
Vol 331 ◽  
pp. 26-33 ◽  
Author(s):  
L.J. Lemus-Yegres ◽  
I. Such-Basáñez ◽  
M.C. Román-Martínez ◽  
C. Salinas-Martínez de Lecea
Keyword(s):  
Activated Carbon ◽  
Catalytic Properties ◽  
Surface Oxygen ◽  
Surface Oxygen Groups ◽  
Oxygen Groups

scholarly journals Photocatalytic Performance of Carbon Monolith/TiO2Composite

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Marina Maletić ◽  
Marija Vukčević ◽  
Ana Kalijadis ◽  
Zoran Laušević ◽  
Mila Laušević
Keyword(s):  
Photocatalytic Activity ◽  
Thermal Treatment ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Dip Coating ◽  
Surface Oxygen ◽  
Surface Oxygen Groups ◽  
Carbon Monolith ◽  
Oxygen Groups

The new and simple approach for deposition of catalytically active TiO2coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2particles induced by binder absence.

Tailoring of CNT surface oxygen groups by gas-phase oxidation and its implications for lithium ion batteries

2012 ◽  
Vol 15 (1) ◽  
pp. 10-13 ◽  
Author(s):  
Stefan Klink ◽  
Edgar Ventosa ◽  
Wei Xia ◽  
Fabio La Mantia ◽  
Martin Muhler ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Gas Phase ◽  
Lithium Ion ◽  
Surface Oxygen ◽  
Surface Oxygen Groups ◽  
Phase Oxidation ◽  
Gas Phase Oxidation ◽  
Oxygen Groups

New insights into the influence of activated carbon surface oxygen groups on H2O2 decomposition and oxidation of pre-adsorbed volatile organic compounds

Carbon ◽  
2014 ◽  
Vol 77 ◽  
pp. 89-98 ◽  
Author(s):  
Alba Anfruns ◽  
Eduardo J. García-Suárez ◽  
Miguel A. Montes-Morán ◽  
Rafael Gonzalez-Olmos ◽  
María J. Martin
Keyword(s):  
Activated Carbon ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Carbon Surface ◽  
Surface Oxygen ◽  
H2o2 Decomposition ◽  
Surface Oxygen Groups ◽  
Volatile Organic ◽  
Oxygen Groups

Highly Active Electrode With Efficiently Added Surface Oxygen Groups for a Vanadium Redox Flow Battery

2019 ◽  
Vol 17 (3) ◽  
Author(s):  
Hirokazu Ishitobi ◽  
Satoshi Sugawara ◽  
Kosuke Oba ◽  
Takumi Hirano ◽  
Honoka Doki ◽  
...  
Keyword(s):  
Vanadium Redox Flow Battery ◽  
Carbon Paper ◽  
Surface Oxygen ◽  
Redox Flow Battery ◽  
Air Oxidation ◽  
Flow Battery ◽  
Surface Oxygen Groups ◽  
Kinetic Resistance ◽  
Oxygen Groups ◽  
Vanadium Redox

Abstract Higher power output by a lower kinetic resistance of the vanadium redox flow battery is needed for its commercialization. In this study, we focused on the air oxidation conditions of carbon paper, which is the electrode material, to reduce the kinetic resistance. The air oxidation is considered to affect the number of surface oxygen groups such as the phenol-type hydroxyl group due to oxidation of the carbon fiber. The surface oxygen groups may correspond to the active sites for the charge/discharge reaction. We quantitatively evaluated the number of surface oxygen groups by temperature-programmed desorption. In addition, we measured the double-layer capacitances of the carbon papers, which may reflect the surface area of the carbon fiber. The single-cell performances, i.e., current–voltage curves and charge–discharge profile, of the electrodes were studied. The air oxidized carbon paper, heat-treated at 500 °C for 3 h (8.4% mass decrease from the pristine sample), showed the highest power density (960 mW cm−2) in this study with thin electrode material (ca., 0.2 mm for one sheet). The negative half-reaction was enhanced by air oxidation. This result could be explained by the reduction of the kinetic resistance by increasing the number of phenol groups, and this power output was relatively high as the vanadium redox flow battery by using a commercial carbon paper and the standard flow field.

Sign in / Sign up

Export Citation Format

Share Document