Chemical characterization carbon

Hontoria-Lucas C, Lopez-Peinado AJ, de D. Lopez-Gonzalez J, Rojas-Cervantes ML, Martfn-Aranda RM. Study of oxygen-containing groups in a series of graphite oxides Physical and chemical characterization, Carbon 1995, 33,1585-1592. 

Incompletely Characterized Carbon Sulfides. A poorly characterized black soHd, known as carsul, occurs as a residue ia sulfur distillation or as a precipitate ia molten Frasch sulfur (12,13). Although this material may approach the composition of a carbon sulfide, it is more likely also to contain some chemically bound hydrogen and possibly other elements. Carbon—sulfur surface compounds of the formula C S, where xis greater than 4,... 

Municipal landfill leachate typically contains dissolved organic carbon (DOC) concentrations up to several thousand (typically >1700 ppm), even in a landfill that is decades old (Christensen et al. 1998). More than 200 organic compounds have been identified in municipal landfill leachate (Paxe us 2000). Therefore, an effective chemical characterization of landfill leachate by numerous analytical techniques requires a previous isolation procedure in order to remove possible interferences. In our previous study, we tested the advantage of the ultrafiltration... 

Ballinger and McKee [55] have discussed the chemical characterization of organic nitrogen and carbon compounds in sediments. 

The synthesis, chemical characterization, and physical characterization of transition metal complexes of new carbon-containing ligands constitute important ongoing objectives of organometallic chemists. In recent... 

Previous work in our laboratory (3) and in others (4) has established that the primary photoprocess in a variety of excited carbanions involves electron ejection. This photooxidation will generate a reactive free radical if recapture of the electron is inhibited. Parallel generation of these same carbon radicals by electrochemical oxidation reveals an irreversible anodic wave, consistent with rapid chemical reaction by the oxidized organic species (5). Little chemical characterization of the products has been attempted, however (6). 

A program of chemical characterization of factors has begun, aimed at improvement of the demineralization capacity. Ion-responsive functional groups have been built into carbon electrodes. Further improvement of electrodes will determine whether an eventual application of this method will be economically important. 

Timonen H, Aurela M, Carbone S, Saamio K, Saarikoski S, Makela T, Kulmala M, Kerminen V-M, Worsnop DR, Hillamo R (2010) High time-resolution chemical characterization of the water-soluble fraction of ambient aerosols with PILS-TOC-IC and AMS. Atmos Meas Tech 3 1063-1074... 

The first step in the activation of carbon dioxide by transition metal compounds is the formation of a M-C02 complex, since it is through coordination that the electronic structure of this molecule, and hence its reactivity, can be substantially modified. Transition metal complexes containing carbon dioxide in its intact form have received considable attention in the last decade (Inone et al, 1982), mainly with the aim of finding model systems for the activation of C02 and subsequent transformation into organic chemicals of comercial interest (Aresta et al, 1987). Despite considerable and intensive work in this area, the number of structurally characterized carbon dioxide complexes is stilt very limited, and they have been found to contain side-on (Alvarez et al, 1986), 72 -coordinated and, l2 C-coordinated (Calabrese et al, 1983) C02. 

Bondi, S. N., et al. (2006), Laser assisted chemical vapor deposition synthesis of carbon nanotubes and their characterization, Carbon, 44,1393-1403. 

Chemically activated carbon fibers (CACF) manufactured KOH impregnated to ACF and confirmed selective adsorption conduct of NO and NO in fixed bed adsorption column. NOx desorption studied on He at Stl/min up to SOOC using temperature programmed desorption (TPD), and observed surface characteristic at absorption-desorption. CACF was increased adsorptivity with offers selective adsorptivity by KOH in NOx adsorption, and CACF (KOH ACF == I 3) had an adsorptivity that was four times higher than that of ACF. NOx desorption on ACF was mostly occurred within 200 C. The results of surface characterization were found that NOx was produced as a KNOx(x=2,3) after adsorption and potassium ions were distributed without loss after desorption. 

---