Non-linear thermogravimetric mass spectrometry of carbon materials providing direct speciation separation of oxygen functional groups

Düngen, Pascal; Schlögl, Robert; Heumann, Saskia

doi:10.1016/j.carbon.2018.01.047

Cited by 57 publications

(53 citation statements)

References 28 publications

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“…Notably, the CO 2 release of TI‐THFS@ONF with the widest ambient temperature range of 300 to760°C (Figure 5(b)), which indicates that a more stable cross‐linking structure in TI‐THFS@ONF is formed. Besides, the release of CO 2 or CO strongly depends on the structure of oxygen‐containing functional groups 35 . There is almost no release of CO in HI‐TS@ONF and TI‐THFS@ONF (no obvious peak) due to oxygen‐containing functional groups (such as lactones and anhydrides) with higher thermal stability 35 .…”

Section: Resultsmentioning

confidence: 99%

Effects of the molecular structure from pitch fractions on the properties of pitch‐based electrospun nanofibers

Zhang

Yang

et al. 2021

J of Applied Polymer Sci

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Mesophase pitch was separated into different pitch fractions to investigate the effect of pitch fractions on the properties of their nanofibers prepared by electrospinning. The evolution of different pitch fractions‐derived nanofibers during stabilization and carbonization were explored, and the properties of the resultant carbon nanofibers (CNFs) as electrode materials for supercapacitor were compared. Results indicated that the hexane insoluble‐toluene soluble (HI‐TS) and toluene insoluble‐tetrahydrofuran (THF) soluble (TI‐THFS) fractions had good spinnability due to their narrow molecular weight distribution. Moreover, compared with HI‐TS and THF insoluble (THFI), TI‐THFS consisted of appropriate aromaticity and branched alkyl groups which promoted the stabilization and carbonization behaviors of its nanofibers, resulting in maintaining ideal fiber morphology of TI‐THFS‐derived nanofiber due to the mitigation of their exothermic reactions. Meanwhile, the TI‐THFS‐derived CNFs presented the highest surface area of 543 m2 g−1 and exhibited an excellent specific capacitance of 167 F g−1 at 0.5 A g−1 in 6 M KOH electrolyte.

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Section: Resultsmentioning

confidence: 99%

Effects of the molecular structure from pitch fractions on the properties of pitch‐based electrospun nanofibers

Zhang

Yang

et al. 2021

J of Applied Polymer Sci

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“…From the TG-MS analysis ( Fig. S4(a) and (b)), oxygen-containing groups on oCNTs are separated at different decomposition temperatures with an isothermal procedure [50] . As summarized in Fig.…”

Section: Resultsmentioning

confidence: 99%

Probing the intrinsic catalytic activity of carbon nanotubes for the metal-free oxidation of aromatic thiophene compounds in ionic liquids

Ding

Liu

et al. 2019

Journal of Energy Chemistry

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“…According to the literature, the mass loss up to 180 °C is due to the desorption of molecules, mainly water from the material surface. For functionalized carbon materials, further mass loss in a higher temperature range can be ascribed to functional groups’ degradation [49]. As can be seen in Figure 6, GCO2 and GPhos samples behave similarly in temperatures up to 180 °C, with a more substantial mass loss observed for a GPhos sample in the higher temperature range.…”

Section: Resultsmentioning

confidence: 99%

Solvent-Free Synthesis of Phosphonic Graphene Derivative and Its Application in Mercury Ions Adsorption

et al. 2019

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Functionalized graphene was efficiently prepared through ball-milling of graphite in the presence of dry ice. In this way, oxygen functional groups were introduced into material. The material was further chemically functionalized to produce graphene derivative with phosphonic groups. The obtained materials were characterized by spectroscopic and microscopic methods, along with thermogravimetric analysis. The newly developed material was used as an efficient mercury adsorbent, showing high adsorption efficiency. The adsorption isotherms were fitted using Freundlich and Langmuir models. The adsorption kinetics were fitted with pseudo-first order and pseudo-second order models. Adsorption selectivity was determined in the presence of cadmium ions and nickel ions. The presence of mentioned bivalent ions in the solution did not affect mercury adsorption efficiency.

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Non-linear thermogravimetric mass spectrometry of carbon materials providing direct speciation separation of oxygen functional groups

Cited by 57 publications

References 28 publications

Effects of the molecular structure from pitch fractions on the properties of pitch‐based electrospun nanofibers

Effects of the molecular structure from pitch fractions on the properties of pitch‐based electrospun nanofibers

Probing the intrinsic catalytic activity of carbon nanotubes for the metal-free oxidation of aromatic thiophene compounds in ionic liquids

Solvent-Free Synthesis of Phosphonic Graphene Derivative and Its Application in Mercury Ions Adsorption

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