Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106330
DC Field | Value | Language |
---|---|---|
dc.contributor | Interdisciplinary Division of Aeronautical and Aviation Engineering | en_US |
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Weng, Z | en_US |
dc.creator | Guan, R | en_US |
dc.creator | Zou, F | en_US |
dc.creator | Zhou, P | en_US |
dc.creator | Liao, Y | en_US |
dc.creator | Su, Z | en_US |
dc.creator | Huang, L | en_US |
dc.creator | Liu, F | en_US |
dc.date.accessioned | 2024-05-09T00:52:47Z | - |
dc.date.available | 2024-05-09T00:52:47Z | - |
dc.identifier.issn | 0008-6223 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106330 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | © 2020 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Weng, Z., Guan, R., Zou, F., Zhou, P., Liao, Y., Su, Z., ... & Liu, F. (2020). A highly sensitive polydopamine@ hybrid carbon nanofillers based nanocomposite sensor for acquiring high-frequency ultrasonic waves. Carbon, 170, 403-413 is available at https://doi.org/10.1016/j.carbon.2020.08.030. | en_US |
dc.subject | Condition monitoring | en_US |
dc.subject | Hybrid nanofiller | en_US |
dc.subject | Nanocomposite strain sensor | en_US |
dc.subject | Piezoresistive effect | en_US |
dc.subject | Polydopamine | en_US |
dc.subject | Tunneling effect | en_US |
dc.subject | Ultrasonic wave | en_US |
dc.title | A highly sensitive polydopamine@hybrid carbon nanofillers based nanocomposite sensor for acquiring high-frequency ultrasonic waves | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 403 | en_US |
dc.identifier.epage | 413 | en_US |
dc.identifier.volume | 170 | en_US |
dc.identifier.doi | 10.1016/j.carbon.2020.08.030 | en_US |
dcterms.abstract | Nanocomposite strain sensors have shown application prospect in a wide range of applications. However, the sensitivities of the existing nanocomposite strain sensors to high-frequency, microscope dynamic strains are rather unsatisfactory. Herein, we fabricate a highly sensitive nanocomposite sensor for acquiring micro-vibrations generated by ultrasonic waves, from polydopamine(PDA)-coated hybrid carbon nanofillers. First, multi-walled carbon nanotubes (MWCNTs) are coated by 10s nm thick viscous PDA to improve their compatibility with polyvinylidene fluoride substrates. Compared to uncoated MWCNTs, the use of 15 wt% PDA-coated MWCNTs leads to a 40% increase in sensitivity. Then, one-dimensional PDA@MWCNTs are mixed with two-dimensional single-layer graphene to enhance the geometric contact between nanofillers. The sensitivity of sensors with hybrid nanofillers far exceeds that of PDA@MWCNT sensors. Also, as the mass fraction of graphene within hybrid nanofillers expands from 33% to 66%, the sensitivity of the proposed sensor improves by approximately 120%, surpassing that of pure graphene sensors. The high sensitivity of the proposed sensor, which actually utilizes a lower graphene content, was shown to be derived from the synergy between the two types of nanofillers which are of different dimensionalities. This study presents a novel approach for optimizing the sensitivity of nanocomposite strain sensors to high-frequency micro-vibrations. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Carbon, Dec. 2020, v. 170, p. 403-413 | en_US |
dcterms.isPartOf | Carbon | en_US |
dcterms.issued | 2020-12 | - |
dc.identifier.scopus | 2-s2.0-85090562001 | - |
dc.identifier.eissn | 1873-3891 | en_US |
dc.description.validate | 202405 bcch | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0162 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | The Hong Kong Polytechnic University under Start-up Fund for New Recruits; Natural Science Foundation of China; Ministry of Science and Technology of the People's Republic of China | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 30213568 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Weng_Highly_Sensitive_Polydopamine.pdf | Pre-Published version | 2.07 MB | Adobe PDF | View/Open |
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