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[PDF] Catalytic Mechanisms of Sulfur-Doped …

Density functional theory (DFT) was applied to study sulfur-doped graphene clusters as oxygen reduction reaction (ORR) cathode catalysts for fuel cells. Several sulfur-doped graphene clusters with/without Stone–Wales defects were investigated and their electronic structures, reaction free energy, transition states, and energy barriers were calculated to predict their catalytic properties.

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Synthesis of sulfur-doped p-type graphene by …

Sulfur‐doped graphene was synthesized by chemical vapor deposition and characterized experimentally and theoretically. as‐prepared sulfur‐doped graphene was applied for the synthesis of 1,5 ...

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Sulfur-Doped Reduced Graphene Oxide for Enhanced …

Sodium-ion capacitors (NICs) are considered an important candidate for large-scale energy storage in virtue of their superior energy–power properties, as well as availability of rich Na+ reserves. To fabricate high-performance NIC electrode material, a hydrothermal method was proposed to synthesize sulfur-doped reduced graphene oxide (SG), which exhibited unique layered structures and showed ...

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Sulfur-doped graphene via thermal exfoliation of …

2013-6-25 · Sulfur-doped graphene via thermal exfoliation of graphite oxide in H2S, SO2, or CS2 gas. Poh HL(1), Šimek P, Sofer Z, Pumera M. Author information: (1)Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.

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Sulfur-doped graphene via thermal exfoliation of …

2013-6-25 · Sulfur-doped graphene via thermal exfoliation of graphite oxide in H2S, SO2, or CS2 gas. Poh HL(1), Šimek P, Sofer Z, Pumera M. Author information: (1)Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.

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Sulfur-doped graphene quantum dots as a novel …

Sulfur-doped graphene quantum dots (S-GQDs) with stable blue-green fluorescence were synthesized by one-step electrolysis of graphite in sodium p-toluenesulfonate aqueous solution. Compared with GQDs, the S-GQDs drastically improved the electronic properties and surface chemical reactivities, which …

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Sulfur-doped graphene quantum dots as a novel …

Sulfur-doped graphene quantum dots (S-GQDs) with stable blue-green fluorescence were synthesized by one-step electrolysis of graphite in sodium p-toluenesulfonate aqueous solution. Compared with GQDs, the S-GQDs drastically improved the electronic properties and surface chemical reactivities, which …

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Sulfur-doped Graphene Powder – Nano Market

Sulfur-doped Graphene Powder. Material: Functionalised Graphene Element Name: Carbon Purity (%): C: 85-95 at% O: . 5 at% S: 1.0-3.0 at% Specification: N/A Description: BET surface area: > 500 m2/g C: 85-95 at% O: . 5 at% S: 1.0-3.0 at% The standard S content is 1.0-3.0 at%. Customized products with controllable S content (1-5 at%) are available at Graphitene.

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Sulfur-doped Graphene Powder – Nano Market

Sulfur-doped Graphene Powder. Material: Functionalised Graphene Element Name: Carbon Purity (%): C: 85-95 at% O: . 5 at% S: 1.0-3.0 at% Specification: N/A Description: BET surface area: > 500 m2/g C: 85-95 at% O: . 5 at% S: 1.0-3.0 at% The standard S content is 1.0-3.0 at%. Customized products with controllable S content (1-5 at%) are available at Graphitene.

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Sulfur‐Doped Graphene Oxide Quantum Dots as …

Sulfur‐doped graphene oxide quantum dots (S‐GOQDs) were synthesized and investigated for efficient photocatalytic hydrogen generation application. The UV/Vis, FTIR, and photoluminescence spectra of the synthesized S‐GOQDs exhibit three absorption bands at 333, 395, ...

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Sulfur-doped graphene as an efficient metal-free …

Sulfur-doped graphene as an efficient metal-free cathode catalyst for oxygen reduction ACS Nano. 2012 Jan 24;6(1):205-11. doi: 10.1021/nn203393d. Epub 2011 Dec 30. Authors Zhi Yang 1 , Zhen Yao, Guifa Li, Guoyong Fang, Huagui Nie, Zheng Liu, Xuemei Zhou, Xi'an Chen, Shaoming Huang. Affiliation 1 Nanomaterials and ...

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Sulfur-doped Graphene | AMERICAN ELEMENTS

2020-10-10 · Sulfur-doped Graphene is a novel nanomaterial based on graphene, a single sheet of carbon atoms in a hexagonal lattice.The addition of sulfur atom impurities into pure graphene increases the activation region on its surface, enhances its catalytic ability, accelerates redox reactions, and opens the band gap, giving it numerous applications in fuel cell chemistry, semiconductor devices ...

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Sulfur-Doped Alkylated Graphene Oxide as High …

Sulfur-doped graphene oxide (SA-GO) prepared by sulfuration and alkylation of graphene oxide is applied as an efficient green anti-wear additive for harsh operation conditions of engines. X-ray photoelectron spectroscopy analysis reveals the sulfur content of octadecylamine-modified SA-GO (sulfuration follows alkylation) is increased by 79 ...

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Sulfur-Doped Alkylated Graphene Oxide as High ...

2015 - Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems 2001 - Heat transfer – a review of 1999 literature 2010 - Heat transfer—A review of 2005 literature 2001 - Heat transfer: a review of 1998 literature 2005

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Nitrogen/Sulfur co-doped graphene | Sigma-Aldrich

Nitrogen/Sulfur co-doped graphene; Synonym: N/S co-doped graphene, NSG, S/N co-doped graphene, SNG; find Sigma-Aldrich-900530 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich.

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Oxygen Reduction on Graphene Carbon Nanotube …

2018-1-24 · sulfur-doped graphene−CNT nanocomposites prepared by a unique and scalable sequential doping process. Electrochemical evaluations revealed excellent electrochemical stability, along with significant ORR activity improvements linked to the incorporation of sulfur as a co-dopant, and synergistic enhancements provided by the nanocomposite ...

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Interaction between Nitrogen and Sulfur in Co-Doped ...

The co-doping of graphene with nitrogen and sulfur was investigated aiming at understanding their interactions with the presence of oxygen in graphene. The co-doped graphene (NS-G) was synthesized via a one-pot hydrothermal route using graphene oxide as starting material and L-cysteine, an amino acid containing both N and S, as the doping agent.

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Interaction between Nitrogen and Sulfur in Co-Doped ...

The co-doping of graphene with nitrogen and sulfur was investigated aiming at understanding their interactions with the presence of oxygen in graphene. The co-doped graphene (NS-G) was synthesized via a one-pot hydrothermal route using graphene oxide as starting material and L-cysteine, an amino acid containing both N and S, as the doping agent.