Electrospinning β-SiC fibers from SiC nanoparticles dispersed in various polymer solutions as the electrospinning agents

Fuad, Abdulloh; Fatriani, N; Yogihati, Chusnana Insjaf; Taufiq, Ahmad; Latifah, Eny

doi:10.1088/1742-6596/1011/1/012013

“…To further prove the production of Pt‐SACs, the crystal structures of Pt species and SiC substrate were characterized by X‐ray diffraction (XRD). As manifested in Figure 2a, SiC substrate showed good crystallinity with characteristic peaks of 35.7°, 41.4°, 60.1°, and 71.9°, which were assigned to the corresponding (111), (200), (220), and (311) crystal planes, respectively [34,35] . Interestingly, the XRD pattern of Pt 1 /SiC‐160 were similar to pure SiC substrate, indicating the absence of any crystal materials.…”

Section: Resultsmentioning

confidence: 89%

“…As manifested in Figure 2a, SiC substrate showed good crystallinity with characteristic peaks of 35.7°, 41.4°, 60.1°, and 71.9°, which were assigned to the corresponding (111), ( 200), (220), and (311) crystal planes, respectively. [34,35] Interestingly, the XRD pattern of Pt 1 /SiC-160 were similar to pure SiC substrate, indicating the absence of any crystal materials. A possible reason for this phenomenon was that the low metal content and small size made Pt 1 / SiC-160 not detectable by XRD measurements.…”

Section: Synthesis and Characterization Of Pt-sacsmentioning

confidence: 93%

Probing Coordination Number of Single‐Atom Catalysts by d‐Band Center‐Regulated Luminescence

Guan,

Cheng,

Pei

et al. 2024

Angewandte Chemie

0

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It is essential to probe the coordination number (CN) because it is a crucial factor to ensure the catalytic capability of single‐atom catalysts (SACs). Currently, synchrotron X‐ray absorption spectroscopy (XAS) is widely used to measure the CN. However, the scarcity of synchrotron X‐ray source and complicated data analysis restrict its wide applications in determining the CN of SACs. In this contribution, we have developed a d‐band center‐regulated acetone cataluminescence (CTL) probe for a rapid screening of the CN of Pt‐SACs. It is disclosed that the CN‐triggered CTL is attributed to the fact that the increased CN could induce the downward shift of d‐band center position, which assists the acetone adsorption and promotes the subsequent catalytic reaction. In addition, the universality of the proposed acetone‐CTL probe is verified by determining the CN of Fe‐SACs. This work has opened a new avenue for exploring an alternative to synchrotron XAS for the determination of CN of SACs and even conventional metal catalysts through d‐band center‐regulated CTL.

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“…Chemie substrate showed good crystallinity with characteristic peaks of 35.7°, 41.4°, 60.1°, and 71.9°, which were assigned to the corresponding (111), ( 200), (220), and (311) crystal planes, respectively. [34,35] Interestingly, the XRD pattern of Pt 1 /SiC-160 were similar to pure SiC substrate, indicating the absence of any crystal materials. A possible reason for this phenomenon was that the low metal content and small size made Pt 1 / SiC-160 not detectable by XRD measurements.…”

Section: Methodsmentioning

confidence: 93%

Probing Coordination Number of Single‐Atom Catalysts by d‐Band Center‐Regulated Luminescence

Guan,

Cheng,

Pei

et al. 2024

Angew Chem Int Ed

4

0

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It is essential to probe the coordination number (CN) because it is a crucial factor to ensure the catalytic capability of single‐atom catalysts (SACs). Currently, synchrotron X‐ray absorption spectroscopy (XAS) is widely used to measure the CN. However, the scarcity of synchrotron X‐ray source and complicated data analysis restrict its wide applications in determining the CN of SACs. In this contribution, we have developed a d‐band center‐regulated acetone cataluminescence (CTL) probe for a rapid screening of the CN of Pt‐SACs. It is disclosed that the CN‐triggered CTL is attributed to the fact that the increased CN could induce the downward shift of d‐band center position, which assists the acetone adsorption and promotes the subsequent catalytic reaction. In addition, the universality of the proposed acetone‐CTL probe is verified by determining the CN of Fe‐SACs. This work has opened a new avenue for exploring an alternative to synchrotron XAS for the determination of CN of SACs and even conventional metal catalysts through d‐band center‐regulated CTL.

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“…136 Focusing primarily on the stability and fluid elasticity of the suspensions, Hua and coworkers demonstrated the spinning of aluminosilicate nanotubes in a PVA matrix. 137 Other promising inorganic compounds for PVA-based suspension spinning include SiC 138 and boron nitride, 139 which produced fibrous mats with high tensile strength and thermal conductivity. Incorporation of cellulose nanofibers or cellulose nanocrystals represent greener approaches to reinforce PVA fibers for improved tensile properties (Fig.…”

Section: Dispersion Electrospinningmentioning

confidence: 99%

Electrospinning based on benign solvents: current definitions, implications and strategies

Avossa

¹

,

Herwig

²

,

Toncelli

³

et al. 2022

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Electrospinning β-SiC fibers from SiC nanoparticles dispersed in various polymer solutions as the electrospinning agents

Cited by 4 publications

References 10 publications

Probing Coordination Number of Single‐Atom Catalysts by d‐Band Center‐Regulated Luminescence

Probing Coordination Number of Single‐Atom Catalysts by d‐Band Center‐Regulated Luminescence

Probing Coordination Number of Single‐Atom Catalysts by d‐Band Center‐Regulated Luminescence

Electrospinning based on benign solvents: current definitions, implications and strategies

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