Multifunctional Graphene-Based Composite Sponge
Although graphene has been widely used as a nano-filler to enhance the conductivity of porous materials, it is still an unsatisfactory requirement to prepare graphene-based sponge porous materials by simple and low-cost methods to enhance their mechanical properties and make them have good sensing a...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/2/329 |
| _version_ | 1811263311698722816 |
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| author | Xu Cui Jiayu Tian Yin Yu Aron Chand Shuocheng Zhang Qingshi Meng Xiaodong Li Shuo Wang |
| author_facet | Xu Cui Jiayu Tian Yin Yu Aron Chand Shuocheng Zhang Qingshi Meng Xiaodong Li Shuo Wang |
| author_sort | Xu Cui |
| collection | DOAJ |
| description | Although graphene has been widely used as a nano-filler to enhance the conductivity of porous materials, it is still an unsatisfactory requirement to prepare graphene-based sponge porous materials by simple and low-cost methods to enhance their mechanical properties and make them have good sensing and capacitive properties. Graphene platelets (GnPs) were prepared by the thermal expansion method. Graphene-based sponge porous materials were prepared by a simple method. A flexible sensor was formed and supercapacitors were assembled. Compared with other graphene-based composites, the graphene-based composite sponge has good electrical response under bending and torsion loading. Under 180° bending and torsion loading, the maximum resistance change rate can reach 13.9% and 52.5%, respectively. The linearity under tension is 0.01. The mechanical properties and capacitance properties of the sponge nanocomposites were optimized when the filler fraction was 1.43 wt.%. The tensile strength was 0.236 MPa and capacitance was 21.4 F/g. In cycles, the capacitance retention rate is 94.45%. The experimental results show that the graphene-based sponge porous material can be used as a multifunctional flexible sensor and supercapacitor, and it is a promising and multifunctional porous nanocomposite material. |
| first_indexed | 2024-04-12T19:42:25Z |
| format | Article |
| id | doaj.art-a3280aa18a504955b1a42a93d8a35228 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-12T19:42:25Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a3280aa18a504955b1a42a93d8a352282022-12-22T03:19:03ZengMDPI AGSensors1424-82202020-01-0120232910.3390/s20020329s20020329Multifunctional Graphene-Based Composite SpongeXu Cui0Jiayu Tian1Yin Yu2Aron Chand3Shuocheng Zhang4Qingshi Meng5Xiaodong Li6Shuo Wang7College of Civil Aviation, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaCollege of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaAlthough graphene has been widely used as a nano-filler to enhance the conductivity of porous materials, it is still an unsatisfactory requirement to prepare graphene-based sponge porous materials by simple and low-cost methods to enhance their mechanical properties and make them have good sensing and capacitive properties. Graphene platelets (GnPs) were prepared by the thermal expansion method. Graphene-based sponge porous materials were prepared by a simple method. A flexible sensor was formed and supercapacitors were assembled. Compared with other graphene-based composites, the graphene-based composite sponge has good electrical response under bending and torsion loading. Under 180° bending and torsion loading, the maximum resistance change rate can reach 13.9% and 52.5%, respectively. The linearity under tension is 0.01. The mechanical properties and capacitance properties of the sponge nanocomposites were optimized when the filler fraction was 1.43 wt.%. The tensile strength was 0.236 MPa and capacitance was 21.4 F/g. In cycles, the capacitance retention rate is 94.45%. The experimental results show that the graphene-based sponge porous material can be used as a multifunctional flexible sensor and supercapacitor, and it is a promising and multifunctional porous nanocomposite material.https://www.mdpi.com/1424-8220/20/2/329graphenesponge porous materialsmultifunctionalflexible sensorsupercapacitor |
| spellingShingle | Xu Cui Jiayu Tian Yin Yu Aron Chand Shuocheng Zhang Qingshi Meng Xiaodong Li Shuo Wang Multifunctional Graphene-Based Composite Sponge Sensors graphene sponge porous materials multifunctional flexible sensor supercapacitor |
| title | Multifunctional Graphene-Based Composite Sponge |
| title_full | Multifunctional Graphene-Based Composite Sponge |
| title_fullStr | Multifunctional Graphene-Based Composite Sponge |
| title_full_unstemmed | Multifunctional Graphene-Based Composite Sponge |
| title_short | Multifunctional Graphene-Based Composite Sponge |
| title_sort | multifunctional graphene based composite sponge |
| topic | graphene sponge porous materials multifunctional flexible sensor supercapacitor |
| url | https://www.mdpi.com/1424-8220/20/2/329 |
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