Preparation of the flexible ZrO2/C composite nanofibrous film via electrospinning

Yin, Xin; Song, Lixin; Xie, Xueyao; Zhou, Yangyang; Guan, Yingli; Xiong, Jie

doi:10.1007/s00339-016-0224-3

Cited by 7 publications

(3 citation statements)

References 35 publications

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“…The stiff SiOC sample did not bend during the bending test, so no data were recorded. SiOC‐1.0Pd exhibited the greatest softness with a low flexural modulus of 2.23 kPa, which is even lower than the reported ZrO 2 /C nanofibers . Typical stress‐strain curves of the membranes are presented in Figure B.…”

Section: Resultsmentioning

confidence: 88%

“…The bending length ( l ) was recorded upon the edge of the fiber mat get in contact with the slope. Then, the flexural rigidity ( B ) and the flexural modulus ( Q ) were calculated through the following equations:

B = G \times {(0.5 l)}^{3} \times 10^{- 5} \times 9.8

Q = \frac{12 B}{t^{3}} \times 10^{- 3} \times 9.8

…”

Section: Resultsmentioning

confidence: 99%

“…The evaporation of solvent during fiber forming and decomposition of polymer and precursor during calcination process generate a large number of micro/nanopores and cracks resulting in brittle ceramic nanofibers with poor flexibility and low strength . Though several flexible ceramic nanofibers have been reported recently, the mechanism for the enhanced mechanical properties is still puzzling. Ding et al prepared the flexible silica and yttria‐stabilized zirconia nanofibrous membranes by decreasing the size of crystal grains and increasing the percentage of the boundary .…”

Section: Introductionmentioning

confidence: 99%

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Enhanced mechanical properties of amorphous SiOC nanofibrous membrane through in situ embedding nanoparticles

Wang

2018

J Am Ceram Soc

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Flexible ceramic nanofibers are highly desired due to their potential applications in free‐standing catalyst supports, fine particulate filters and flexible electronic devices. In this work, robust SiOC fibrous membranes composed of randomly oriented nanofibers with an average diameter of 550 nm were fabricated by a combination of electrospinning and post heat‐treatment process. The mechanical properties of the as‐prepared membranes were enhanced significantly through in situ embedding of palladium nanoparticles into the SiOC fibers. The optimized palladium‐doped SiOC fibrous membrane demonstrated a low flexural modulus of 7.79 kPa and a high tensile strength of 33.2 MPa. Reduced flaw size, initiation of nanocracks and pinning effect were proposed to explain the enhancement mechanism. Furthermore, the flexible SiOC membrane with excellent corrosion resistance exhibits a high filtration efficiency of 99.6% when the membrane weight is 4.8 g m−2, suggesting efficient filtration applications in harsh environments. This work also provides a feasible strategy for the design and fabrication of the flexible amorphous ceramic fiber membranes for various applications.

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Section: Resultsmentioning

confidence: 88%