Heteroatom-doped carbon gels from phenols and heterocyclic aldehydes: Sulfur-doped carbon xerogels

Kiciński, Wojciech; Dziura, A.

doi:10.1016/j.carbon.2014.02.085

Cited by 68 publications

(42 citation statements)

References 43 publications

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“…The elemental mapping images (Supporting Information, Figure S4) revealed that the C, N, S, and Co atoms are well distributed at the same area, indicating the uniform composition of the sulfur-containing cobalt coordination complex. [34,35] Finally,t he yield of carbonizationw as 34 %a ccording aT Gcurve (Supporting Information, Figure S5). The complex encountered thermald ecomposition when the temperature increased from 300 8Ct o5 00 8C, resulting in the fast weightl oss.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

Qian

Tang

Wang

et al. 2016

Chemistry A European J

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Cobalt sulfide/sulfur dopedc arbon composites (Co 9 S 8 /S-C) were synthesized by calcining ar ationally designed sulfur-containing cobalt coordinationc omplexi na n inert atmosphere.F rom the detailed transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analyses,t he electrocatalytically active Co 9 S 8 nanoparticles were clearly obtained and combined with the thin sulfur doped carbon layers. Electrochemical data showed that Co 9 S 8 /S-C had ag ood activity and long-term stability in catalyzing oxygen evolution reactioni na lkaline electrolyte, even better than the traditional RuO 2 electrocatalyst. The excellente lectrocatalytic activity of Co 9 S 8 /S-C was mainly attributed to the synergistic effect between the Co 9 S 8 catalyst which contributed to the oxygen evolutionr eactiona nd the sulfurd oped carbon layer whichf acilitated the adsorption of reactants, prevented the Co 9 S 8 particles from aggregating and served as the electrically conductivebinder between each component.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

Qian

Tang

Wang

et al. 2016

Chemistry A European J

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“…It is known that the G band corresponds to the rst order scattering of E 2g mode of sp 2 carbon hybridized graphitic carbon atoms, while the D band is attributed to the defects and the degree of disorder. 52 What's more, the relative strength of the D band compared to the G band depends on the amount of disorder in the graphitic materials, in this case, it could be deduced that reduced graphene oxide was obtained aer the heat treatment.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and electrochemical performance of xLiV₃O₈·yLi₃V₂(PO₄)₃/rGO composite cathode materials for lithium ion batteries

Xie

Zhang

et al. 2015

J. Mater. Chem. A

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A series of xLiV 3 O 8 $yLi 3 V 2 (PO 4 ) 3 /rGO (x : y ¼ 2 : 1, 3 : 1, 1 : 1, 1 : 2, and 1 : 3) composites are synthesized by simple mechanical mixing of LiV 3 O 8 and Li 3 V 2 (PO 4 )/rGO, which are prepared by the hydrothermal method and the sol-gel route, respectively. From scanning electron microscopy (SEM) and transmission electron microscopy (TEM) micrographs, the composites are found to be a mixture of rod-like LiV 3 O 8 particles and flower-shaped Li 3 V 2 (PO 4 )/rGO. Among these composites, the 2LiV 3 O 8 $Li 3 V 2 (PO 4 )/rGO electrode delivers an initial discharge capacity of 197 mA h g À1 at a current density of 100 mA g À1 between 2.0 V and 4.3 V, and shows the best comprehensive electrochemical property. The diffusion coefficients of Li ions in the 2LiV 3 O 8 $Li 3 V 2 (PO 4 )/rGO electrode are in the range of 10 À11.5 to 10 À9.5 cm 2 s À1 obtained using the galvanostatic intermittent titration technique (GITT).

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“…80 This methodology allows for a conveniently controlled texture and morphology by a simple process modification of the sol-gel conditions, while introducing significant amounts of sulfur (as high as 19.6 wt%, dropping to 14% after calcination at 873 K).…”

Section: Sulfur-doped Carbonsmentioning

confidence: 99%

Doped Nanostructured Carbon Materials as Catalysts

2015

Nanostructured Carbon Materials for Catalysis

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Metallic nanoparticles are undoubtedly the most vibrant catalysts due to their good performance in a series of important chemical reactions in modern chemistry. However, their use on an industrial scale is restricted by limited reserves, high cost and low stability. In moving towards green and sustainable chemistry, carbon nanostructured materials without metal elements have been explored and studied extensively in catalysis.Heteroatom doped carbon materials represent one of the most prominent families of materials that are used in energy related applications, such as fuel cells, batteries, hydrogen storage or super-capacitors. 1-3 Doping substantially modifies the atomic scale structures, surface energy, chemical reactivity and mechanical properties of carbon nanomaterials. 4,5 While doping carbons with nitrogen atoms has seen great progress throughout the past decades and yielded promising material concepts, other doping candidates such as boron, phosphorus or sulfur have gathered increasing interest over the last few years. Boron is already widely studied, and as its electronic situation is contrary to the one of nitrogen, co-doping carbons with both heteroatoms can probably create synergistic effects. Sulfur and phosphorus have just recently entered the world of carbon synthesis, but already several studies published prove their potential, especially as electrocatalysts in the cathodic compartment of fuel cells. Given that their size and electronegativity are lower than those of carbon, structural distortions and changes of the charge densities are induced in the carbon materials.

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Heteroatom-doped carbon gels from phenols and heterocyclic aldehydes: Sulfur-doped carbon xerogels

Cited by 68 publications

References 43 publications

Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

Synthesis and electrochemical performance of xLiV₃O₈·yLi₃V₂(PO₄)₃/rGO composite cathode materials for lithium ion batteries

Doped Nanostructured Carbon Materials as Catalysts

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Heteroatom-doped carbon gels from phenols and heterocyclic aldehydes: Sulfur-doped carbon xerogels

Cited by 68 publications

References 43 publications

Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

Synthesis of Cobalt Sulfide/Sulfur Doped Carbon Nanocomposites with Efficient Catalytic Activity in the Oxygen Evolution Reaction

Synthesis and electrochemical performance of xLiV3O8·yLi3V2(PO4)3/rGO composite cathode materials for lithium ion batteries

Doped Nanostructured Carbon Materials as Catalysts

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Synthesis and electrochemical performance of xLiV₃O₈·yLi₃V₂(PO₄)₃/rGO composite cathode materials for lithium ion batteries