S-doped carbon materials: Synthesis, properties and applications

Ma, Guixuan; Gao, Ning; Wei, Qiang

doi:10.1016/j.carbon.2022.03.043

Cited by 92 publications

(36 citation statements)

References 193 publications

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“…For example, the hydrogen evolution activities can be boosted dramatically via S-doping into the metal-free carbon nanosheets/graphene, or the supported RuP nanoparticles/Pt clusters . Generally, S-doped carbon materials can be prepared by the in situ (using sulfur-containing compounds as carbon precursors) or post-treatment (doping sulfur into the presynthesized carbon) synthetic routes. , While loading the metal nanoparticles on S-doped carbon materials can enhance the metal–support interaction, but without efficient S-doping into the metal nanoparticles, , introduction of excessive sulfur species during synthesis of the carbon supported metal nanoparticles is prone to form metal sulfide phase or poison the metal active sites. − Since the above-mentioned approaches often suffer from the problems of insufficient control of S-doping structure and low utilization of S-source, the development of efficient synthetic strategies toward the precise fabrication of S-doped metal/carbon materials is highly desirable.…”

Section: Introductionmentioning

confidence: 99%

A General and Scalable Approach to Sulfur-Doped Mono-/Bi-/Trimetallic Nanoparticles Confined in Mesoporous Carbon

et al. 2023

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Metal nanoparticles confined in porous carbon materials have been widely used in various heterogeneous catalytic processes due to their enhanced activity and stability. However, fabrication of such catalysts in a facile and scalable way remains challenging. Herein, we report a general and scalable thiol-assisted strategy to synthesize sulfur-doped mono-/bi-/trimetallic nanoparticles confined in mesoporous carbon (S-M@MC, M = Pt, Pd, Rh, Co, Zn, etc.), involving only two synthetic steps, i.e., a hydrothermal process and pyrolysis. The strategy is based on coordination chemistry and hydro-phobic interaction that the metal precursors coordinated with the hydrophobic thiol ligands are located at the hydrophobic core of micelles, in situ confined in the hydrothermally prepared mesostructured polymer, and then converted into sulfur-doped metal nanoparticles confined in MC after pyrolysis. It is demonstrated that the S-PtCo@MC exhibits enhanced catalytic activity and improved durability toward acidic hydrogen evolution reaction due to the confinement effect and S-doping.

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Section: Introductionmentioning

confidence: 99%

A General and Scalable Approach to Sulfur-Doped Mono-/Bi-/Trimetallic Nanoparticles Confined in Mesoporous Carbon

et al. 2023

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“…For the non-metallic atom-doped CDs, elements close to C in the periodic table, such as B, N, S, and P, can be incorporated as dopants into the carbon frameworks [ 82 ]. N-doped and S-doped CDs are widely studied among the reported non-metallic atom-doped CDs.…”

Section: Preparation and Modification Of Cdsmentioning

confidence: 99%

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Pundi

Chang

2022

Polymers

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Although there is significant progress in the research of carbon dots (CDs), some challenges such as difficulty in large-scale synthesis, complicated purification, low quantum yield, ambiguity in structure-property correlation, electronic structures, and photophysics are still major obstacles that hinder the commercial use of CDs. Recent advances in synthesis, modification, characterization, and applications of CDs are summarized in this review. We illustrate some examples to correlate process parameters, structures, compositions, properties, and performances of CDs-based materials. The advances in the synthesis approach, purification methods, and modification/doping methods for the synthesis of CDs are also presented. Moreover, some examples of the kilogram-scale fabrication of CDs are given. The properties and performance of CDs can be tuned by some synthesis parameters, such as the incubation time and precursor ratio, the laser pulse width, and the average molar mass of the polymeric precursor. Surface passivation also has a significant influence on the particle sizes of CDs. Moreover, some factors affect the properties and performance of CDs, such as the polarity-sensitive fluorescence effect and concentration-dependent multicolor luminescence, together with the size and surface states of CDs. The synchrotron near-edge X-ray absorption fine structure (NEXAFS) test has been proved to be a useful tool to explore the correlation among structural features, photophysics, and emission performance of CDs. Recent advances of CDs in bioimaging, sensing, therapy, energy, fertilizer, separation, security authentication, food packing, flame retardant, and co-catalyst for environmental remediation applications were reviewed in this article. Furthermore, the roles of CDs, doped CDs, and their composites in these applications were also demonstrated.

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“…With larger radii, smaller electronegativity and multiple covalent bonds, S atoms play unique roles in different applications. Compared to N-doped porous carbon, the S-doped counterpart has more outstanding electrical conductivity, and N-containing functional groups can help dissociate oxygen molecules in the field of electrocatalysis, while S can facilitate proton transfer [ 1 ]. Owing to the presence of P-containing functional groups, researchers can develop plant-derived carbon materials with high carboxylation, dehydration, aromatization and oligomerization activities, which are promising catalyst candidates to raise the yields of some compounds.…”

Section: Advantages Of Plant-derived Carbon Materialsmentioning

confidence: 99%

“…Carbon materials can exist in a 0D to 3D structure stably in nature due to their outstanding chemical stability. The multiple allotropes of carbon make it diverse in structure and versatile [ 1 ]. Novel carbon materials mainly include graphene [ 2 ], carbon nanotubes [ 3 ], porous carbon [ 4 ] and fullerene [ 5 ], derived from resins [ 6 ], gels [ 7 ], biomass materials [ 8 ], petroleum pitch [ 9 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Advances in Micro-/Mesopore Regulation Methods for Plant-Derived Carbon Materials

et al. 2022

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In recent years, renewable and clean energy has become increasingly important due to energy shortage and environmental pollution. Selecting plants as the carbon precursors to replace costly non-renewable energy sources causing severe pollution is a good choice. In addition, owing to their diverse microstructure and the rich chemical composition, plant-based carbon materials are widely used in many fields. However, some of the plant-based carbon materials have the disadvantage of possessing a large percentage of macroporosity, limiting their functionality. In this paper, we first introduce two characteristics of plant-derived carbon materials: diverse microstructure and rich chemical composition. Then, we propose improvement measures to cope with a high proportion of macropores of plant-derived carbon materials. Emphatically, size regulation methods are summarized for micropores (KOH activation, foam activation, physical activation, freezing treatment, and fungal treatment) and mesopores (H3PO4 activation, enzymolysis, molten salt activation, and template method). Their advantages and disadvantages are also compared and analyzed. Finally, the paper makes suggestions on the pore structure improvement of plant-derived carbon materials.

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S-doped carbon materials: Synthesis, properties and applications

Cited by 92 publications

References 193 publications

A General and Scalable Approach to Sulfur-Doped Mono-/Bi-/Trimetallic Nanoparticles Confined in Mesoporous Carbon

A General and Scalable Approach to Sulfur-Doped Mono-/Bi-/Trimetallic Nanoparticles Confined in Mesoporous Carbon

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Advances in Micro-/Mesopore Regulation Methods for Plant-Derived Carbon Materials

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