<i>In situ</i> synthesis of small Pt nanoparticles on chitin aerogel derived N doped ultra-thin carbon nanofibers for superior hydrogen evolution catalysis

Liu, Wenjie; Zhu, Han; Ying, Liangri; Zhu, Zhiliang; Li, Huining; Lu, Shuanglong; Duan, Fang

doi:10.1039/c9nj03675j

Cited by 12 publications

(8 citation statements)

References 47 publications

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“…Polysaccharides are capable of crosslinking or entangling with other precursors due to the presence of several functional groups on the cell wall, such as hydroxyl, phosphate, sulfate, and carboxyl groups. These functional groups are common in biomass-derived carbon, allowing it to function as good an adsorbent [ 55 ]. In addition to sustainability, these groups can provide coordination sites for various applications [ 2 ].…”

Section: Preparation Of Porous Polysaccharidesmentioning

confidence: 99%

“…For instance, one study has shown that pristine isotropic nanochitin aerogels exhibit low densities and high porosities that are comparable to those of nanocellulose aerogels [ 34 ]. In another study, the in situ synthesis of platinum (Pt) nanoparticle on a chitin aerogel derived from doped ultra-thin carbon nanofibers (CN-Pt) was developed for application in the hydrogen evolution reaction [ 55 ]. Chitosan aerogel is superior to chitosan powder for its well-defined structure with respect to surface area, molecular weight distribution, and accessibility of the amine functional groups [ 56 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Muhammad¹,

Lee²,

Shin³

et al. 2021

Polymers

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Porous polysaccharides have recently attracted attention due to their porosity, abundance, and excellent properties such as sustainability and biocompatibility, thereby resulting in their numerous applications. Recent years have seen a rise in the number of studies on the utilization of polysaccharides such as cellulose, chitosan, chitin, and starch as aerogels due to their unique performance for the fabrication of porous structures. The present review explores recent progress in porous polysaccharides, particularly cellulose and chitosan, including their synthesis, application, and future outlook. Since the synthetic process is an important aspect of aerogel formation, particularly during the drying step, the process is reviewed in some detail, and a comparison is drawn between the supercritical CO2 and freeze drying processes in order to understand the aerogel formation of porous polysaccharides. Finally, the current applications of polysaccharide aerogels in drug delivery, wastewater, wound dressing, and air filtration are explored, and the limitations and outlook of the porous aerogels are discussed with respect to their future commercialization.

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Section: Preparation Of Porous Polysaccharidesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Muhammad¹,

Lee²,

Shin³

et al. 2021

Polymers

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“…Metal ions, possessing additional electrons, unoccupied orbitals, and larger atomic radii compared to non-metallic atoms, play a crucial role in this modulation. For example, Du et al reported that Pt nanoparticles are prepared in situ on carbon nanofibers (NCN–Pt, using chitin aerogel as the carbon source) by combining adsorbing, freeze-drying, and pyrolysis processes . The schematic synthetic process and the HER performance are shown in Figure .…”

Section: Applications In the Hydrogen Evolution Reactionmentioning

confidence: 99%

Review on Biomass-Derived Carbon-Based Materials for Electrocatalytic Hydrogen Production: State of the Art and Outlook

Li,

Lu,

Fang

et al. 2023

Energy Fuels

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The increasing demand for sustainable hydrogen production is driven by the rapid expansion of global energy consumption. Electrocatalytic H 2 production is one of the preferred methods for future energy technology. The hydrogen evolution reaction (HER) has attracted extensive attention as an important half-reaction for traditional water electrolysis. However, cost-effective and efficient electrode materials for HER are scarce. Biomass-derived carbon-based materials could offer a promising solution by utilizing biomass waste through rational engineering design, which can address biomass pollution but also enable the synthesis of effective electrocatalytic materials, aligning with the principles of green chemistry. This study provides a comprehensive review of multiple synthetic methods for producing carbon-based materials from biomass, such as pyrolysis, hydrothermal carbonization, ionothermal carbonization, and molten salt carbonization. The diverse applications of these materials in H 2 production are explored. Effective treatment strategies and valuable insights for future biomass-derived carbon-based material design in H 2 production are also presented. This progress contributes to a better understanding of these materials and offers valuable insights for future explorations.

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“…The catalysis property of aerogels has been demonstrated in various ways [136,[161][162][163][164]. Carbon nanofibers are typically used as a catalyst carrier or substrate for supporting precious metal catalysts.…”

Section: Catalysismentioning

confidence: 99%

“…Carbon nanofibers are typically used as a catalyst carrier or substrate for supporting precious metal catalysts. Liu et al [161] dispersed small Pt nanoparticles (NPs) on chitin aerogel derived N doped ultra-thin composite carbon nanofibers for hydrogen generation catalysis. The Pt-loaded chitin aerogel derived N-doped ultra-thin carbon nanofibers (NCN-Pt) was made by an integrated process combining adsorbing, freeze-drying and pyrolysis.…”

Section: Catalysismentioning

confidence: 99%

Advances in Manufacturing Composite Carbon Nanofiber-Based Aerogels

Gan

2020

J. Compos. Sci.

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This article provides an overview on manufacturing composite carbon nanofiber-based aerogels through freeze casting technology. As known, freeze casting is a relatively new manufacturing technique for generating highly porous structures. During the process, deep cooling is used first to rapidly solidify a well-dispersed slurry. Then, vacuum drying is conducted to sublimate the solvent. This allows the creation of highly porous materials. Although the freeze casting technique was initially developed for porous ceramics processing, it has found various applications, especially for making aerogels. Aerogels are highly porous materials with extremely high volume of free spaces, which contributes to the characteristics of high porosity, ultralight, large specific surface area, huge interface area, and in addition, super low thermal conductivity. Recently, carbon nanofiber aerogels have been studied to achieve exceptional properties of high stiffness, flame-retardant and thermal-insulating. The freeze casting technology has been reported for preparing carbon nanofiber composite aerogels for energy storage, energy conversion, water purification, catalysis, fire prevention etc. This review deals with freeze casting carbon nanofiber composite materials consisting of functional nanoparticles with exceptional properties. The content of this review article is organized as follows. The first part will introduce the general freeze casting manufacturing technology of aerogels with the emphasis on how to use the technology to make nanoparticle-containing composite carbon nanofiber aerogels. Then, modeling and characterization of the freeze cast particle-containing carbon nanofibers will be presented with an emphasis on modeling the thermal conductivity and electrical conductivity of the carbon nanofiber network aerogels. After that, the applications of the carbon nanofiber aerogels will be described. Examples of energy converters, supercapacitors, secondary battery electrodes, dye absorbents, sensors, and catalysts made from composite carbon nanofiber aerogels will be shown. Finally, the perspectives to future work will be presented.

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In situ synthesis of small Pt nanoparticles on chitin aerogel derived N doped ultra-thin carbon nanofibers for superior hydrogen evolution catalysis

Abstract: Small and uniform Pt NPs were in situ synthesized on chitin aerogel derived N doped ultra-thin carbon nanofibers.

Cited by 12 publications

References 47 publications

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Review on Biomass-Derived Carbon-Based Materials for Electrocatalytic Hydrogen Production: State of the Art and Outlook

Advances in Manufacturing Composite Carbon Nanofiber-Based Aerogels

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