Preparation of lignin-based carbon/polyaniline composites for advanced microwave absorber
Lignin and polyaniline (PANI) as raw materials were pretreated and calcined to prepare a lignin-based carbon/PANI composite microwave absorbent. The microscopic, structural, and microwave absorption performance of lignin-based carbon/PANI composites were investigated using X-ray diffraction, Raman s...
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| Veröffentlicht in: | Diamond and related materials 2021-01, Vol.111, p.108219, Article 108219 |
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| creator | Wen, Minyue Zhao, Yan Li, Zongru Lai, Shengfa Zeng, Qiuyu Liu, Changlang Liu, Yin |
| description | Lignin and polyaniline (PANI) as raw materials were pretreated and calcined to prepare a lignin-based carbon/PANI composite microwave absorbent. The microscopic, structural, and microwave absorption performance of lignin-based carbon/PANI composites were investigated using X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and vector network analyzer. Results show that the optimized reflection loss (RL) of the lignin-based carbon/PANI composites is −50.96 dB, its matching thickness is 3.09 mm, and its effective absorption frequency range is 6.8–10.8 GHz (RL |
| doi_str_mv | 10.1016/j.diamond.2020.108219 |
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[Display omitted]
•This work provides a strategy for cleaner and more efficient use of lignin.•The minimum reflection loss reaches −50.96 dB, while the matching thickness is only 3.09 mm.•The impedance matching is improved due to the introduction of PANI.•Enhanced microwave absorption properties due to suitable impedance matching.</description><identifier>ISSN: 0925-9635</identifier><identifier>EISSN: 1879-0062</identifier><identifier>DOI: 10.1016/j.diamond.2020.108219</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>C band ; Carbon ; Composite ; Electron microscopy ; Fourier transforms ; Frequency ranges ; Impedance matching ; Infrared analysis ; Lignin ; Lignin-based carbon ; Microscopy ; Microwave absorbers ; Microwave absorption ; Network analysers ; Polyaniline ; Polyanilines ; Polymer matrix composites ; Raman spectroscopy ; Raw materials ; Spectrum analysis ; Superhigh frequencies ; Weight reduction</subject><ispartof>Diamond and related materials, 2021-01, Vol.111, p.108219, Article 108219</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jan 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-626b1c7e7b30208ca193a8eadb089df3217744c948c25e688dde4b6edf3ce5e13</citedby><cites>FETCH-LOGICAL-c337t-626b1c7e7b30208ca193a8eadb089df3217744c948c25e688dde4b6edf3ce5e13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925963520307743$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Wen, Minyue</creatorcontrib><creatorcontrib>Zhao, Yan</creatorcontrib><creatorcontrib>Li, Zongru</creatorcontrib><creatorcontrib>Lai, Shengfa</creatorcontrib><creatorcontrib>Zeng, Qiuyu</creatorcontrib><creatorcontrib>Liu, Changlang</creatorcontrib><creatorcontrib>Liu, Yin</creatorcontrib><title>Preparation of lignin-based carbon/polyaniline composites for advanced microwave absorber</title><title>Diamond and related materials</title><description>Lignin and polyaniline (PANI) as raw materials were pretreated and calcined to prepare a lignin-based carbon/PANI composite microwave absorbent. The microscopic, structural, and microwave absorption performance of lignin-based carbon/PANI composites were investigated using X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and vector network analyzer. Results show that the optimized reflection loss (RL) of the lignin-based carbon/PANI composites is −50.96 dB, its matching thickness is 3.09 mm, and its effective absorption frequency range is 6.8–10.8 GHz (RL < −10 dB), covering C-band and X-band. Compared with untreated lignin, lignin-based carbon/PANI composites possess broader effective absorption bandwidth and higher absorption intensity. The outstanding absorption properties are closely related to the suitable impedance matching and the multiple loss mechanisms. This work can be used as the basis for the design and preparation of lignin-based and PANI polymer composites and serves as a feasible method for the design and synthesis of microwave absorbents with light weight and high performance.
[Display omitted]
•This work provides a strategy for cleaner and more efficient use of lignin.•The minimum reflection loss reaches −50.96 dB, while the matching thickness is only 3.09 mm.•The impedance matching is improved due to the introduction of PANI.•Enhanced microwave absorption properties due to suitable impedance matching.</description><subject>C band</subject><subject>Carbon</subject><subject>Composite</subject><subject>Electron microscopy</subject><subject>Fourier transforms</subject><subject>Frequency ranges</subject><subject>Impedance matching</subject><subject>Infrared analysis</subject><subject>Lignin</subject><subject>Lignin-based carbon</subject><subject>Microscopy</subject><subject>Microwave absorbers</subject><subject>Microwave absorption</subject><subject>Network analysers</subject><subject>Polyaniline</subject><subject>Polyanilines</subject><subject>Polymer matrix composites</subject><subject>Raman spectroscopy</subject><subject>Raw materials</subject><subject>Spectrum analysis</subject><subject>Superhigh frequencies</subject><subject>Weight reduction</subject><issn>0925-9635</issn><issn>1879-0062</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFUE1LxDAUDKLguvoThILn7iZpm4-TyOIXLOhBD55CmrxKSjepSXdl_70t3bunB-_NzJsZhG4JXhFM2LpdWad3wdsVxXTaCUrkGVoQwWWOMaPnaIElrXLJiuoSXaXUYkyoLMkCfb1H6HXUgws-C03WuW_vfF7rBDYzOtbBr_vQHbV3nfOQmbDrQ3IDpKwJMdP2oL0ZoTtnYvjVB8h0nUKsIV6ji0Z3CW5Oc4k-nx4_Ni_59u35dfOwzU1R8CFnlNXEcOB1MZoXRhNZaAHa1lhI2xSUcF6WRpbC0AqYENZCWTMYTwYqIMUS3c26fQw_e0iDasM--vGloqWQnLGCyxFVzajRZkoRGtVHt9PxqAhWU4uqVacW1dSimlscefczD8YIBwdRJeNgiuwimEHZ4P5R-AMXAX8z</recordid><startdate>202101</startdate><enddate>202101</enddate><creator>Wen, Minyue</creator><creator>Zhao, Yan</creator><creator>Li, Zongru</creator><creator>Lai, Shengfa</creator><creator>Zeng, Qiuyu</creator><creator>Liu, Changlang</creator><creator>Liu, Yin</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>202101</creationdate><title>Preparation of lignin-based carbon/polyaniline composites for advanced microwave absorber</title><author>Wen, Minyue ; Zhao, Yan ; Li, Zongru ; Lai, Shengfa ; Zeng, Qiuyu ; Liu, Changlang ; Liu, Yin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-626b1c7e7b30208ca193a8eadb089df3217744c948c25e688dde4b6edf3ce5e13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>C band</topic><topic>Carbon</topic><topic>Composite</topic><topic>Electron microscopy</topic><topic>Fourier transforms</topic><topic>Frequency ranges</topic><topic>Impedance matching</topic><topic>Infrared analysis</topic><topic>Lignin</topic><topic>Lignin-based carbon</topic><topic>Microscopy</topic><topic>Microwave absorbers</topic><topic>Microwave absorption</topic><topic>Network analysers</topic><topic>Polyaniline</topic><topic>Polyanilines</topic><topic>Polymer matrix composites</topic><topic>Raman spectroscopy</topic><topic>Raw materials</topic><topic>Spectrum analysis</topic><topic>Superhigh frequencies</topic><topic>Weight reduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wen, Minyue</creatorcontrib><creatorcontrib>Zhao, Yan</creatorcontrib><creatorcontrib>Li, Zongru</creatorcontrib><creatorcontrib>Lai, Shengfa</creatorcontrib><creatorcontrib>Zeng, Qiuyu</creatorcontrib><creatorcontrib>Liu, Changlang</creatorcontrib><creatorcontrib>Liu, Yin</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Diamond and related materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wen, Minyue</au><au>Zhao, Yan</au><au>Li, Zongru</au><au>Lai, Shengfa</au><au>Zeng, Qiuyu</au><au>Liu, Changlang</au><au>Liu, Yin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of lignin-based carbon/polyaniline composites for advanced microwave absorber</atitle><jtitle>Diamond and related materials</jtitle><date>2021-01</date><risdate>2021</risdate><volume>111</volume><spage>108219</spage><pages>108219-</pages><artnum>108219</artnum><issn>0925-9635</issn><eissn>1879-0062</eissn><abstract>Lignin and polyaniline (PANI) as raw materials were pretreated and calcined to prepare a lignin-based carbon/PANI composite microwave absorbent. The microscopic, structural, and microwave absorption performance of lignin-based carbon/PANI composites were investigated using X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and vector network analyzer. Results show that the optimized reflection loss (RL) of the lignin-based carbon/PANI composites is −50.96 dB, its matching thickness is 3.09 mm, and its effective absorption frequency range is 6.8–10.8 GHz (RL < −10 dB), covering C-band and X-band. Compared with untreated lignin, lignin-based carbon/PANI composites possess broader effective absorption bandwidth and higher absorption intensity. The outstanding absorption properties are closely related to the suitable impedance matching and the multiple loss mechanisms. This work can be used as the basis for the design and preparation of lignin-based and PANI polymer composites and serves as a feasible method for the design and synthesis of microwave absorbents with light weight and high performance.
[Display omitted]
•This work provides a strategy for cleaner and more efficient use of lignin.•The minimum reflection loss reaches −50.96 dB, while the matching thickness is only 3.09 mm.•The impedance matching is improved due to the introduction of PANI.•Enhanced microwave absorption properties due to suitable impedance matching.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.diamond.2020.108219</doi></addata></record> |
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| subjects | C band Carbon Composite Electron microscopy Fourier transforms Frequency ranges Impedance matching Infrared analysis Lignin Lignin-based carbon Microscopy Microwave absorbers Microwave absorption Network analysers Polyaniline Polyanilines Polymer matrix composites Raman spectroscopy Raw materials Spectrum analysis Superhigh frequencies Weight reduction |
| title | Preparation of lignin-based carbon/polyaniline composites for advanced microwave absorber |
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