Conjugated Microporous Polymers with Tunable Electronic Structure for High-Performance Potassium-Ion Batteries
Conjugated microporous polymers (CMPs) with π-conjugated skeletons show great potential as energy storage materials due to their porous structure and tunable redox nature. However, CMPs and the structure–performance relationships have not been well explored for potassium-ion batteries (KIBs). Here,...
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| Veröffentlicht in: | ACS nano 2019-01, Vol.13 (1), p.745-754 |
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| creator | Zhang, Chong Qiao, Yu Xiong, Peixun Ma, Wenyan Bai, Panxing Wang, Xue Li, Qi Zhao, Jin Xu, Yunfeng Chen, Yu Zeng, Jing Hui Wang, Feng Xu, Yunhua Jiang, Jia-Xing |
| description | Conjugated microporous polymers (CMPs) with π-conjugated skeletons show great potential as energy storage materials due to their porous structure and tunable redox nature. However, CMPs and the structure–performance relationships have not been well explored for potassium-ion batteries (KIBs). Here, we report the structure-engineered CMP anodes with tunable electronic structures for high-performance KIBs. The results demonstrate that the electronic structure of the CMPs plays an important role in enhancing potassium storage capability, including the lowest unoccupied molecular orbital (LUMO) distribution, LUMO energy level, and band gap, which can be finely tuned by synthetic control. It was revealed that the poly(pyrene-co-benzothiadiazole) (PyBT) with optimized structure delivers a high reversible capacity of 428 mAh g–1 and shows an excellent cycling stability over 500 cycles. Our findings provide a fundamental understanding in the design of CMP anode materials for high-performance potassium–organic energy storage devices. |
| doi_str_mv | 10.1021/acsnano.8b08046 |
| format | Article |
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However, CMPs and the structure–performance relationships have not been well explored for potassium-ion batteries (KIBs). Here, we report the structure-engineered CMP anodes with tunable electronic structures for high-performance KIBs. The results demonstrate that the electronic structure of the CMPs plays an important role in enhancing potassium storage capability, including the lowest unoccupied molecular orbital (LUMO) distribution, LUMO energy level, and band gap, which can be finely tuned by synthetic control. It was revealed that the poly(pyrene-co-benzothiadiazole) (PyBT) with optimized structure delivers a high reversible capacity of 428 mAh g–1 and shows an excellent cycling stability over 500 cycles. Our findings provide a fundamental understanding in the design of CMP anode materials for high-performance potassium–organic energy storage devices.</description><identifier>ISSN: 1936-0851</identifier><identifier>EISSN: 1936-086X</identifier><identifier>DOI: 10.1021/acsnano.8b08046</identifier><identifier>PMID: 30604957</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>ACS nano, 2019-01, Vol.13 (1), p.745-754</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a333t-b668011ba8f6b6f5971b0c99eb712c1872381c36f700f2b6f8cb37697e7d87273</citedby><cites>FETCH-LOGICAL-a333t-b668011ba8f6b6f5971b0c99eb712c1872381c36f700f2b6f8cb37697e7d87273</cites><orcidid>0000-0003-3279-0652 ; 0000-0002-2191-3875 ; 0000-0003-1818-3661 ; 0000-0002-2833-4753</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acsnano.8b08046$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acsnano.8b08046$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30604957$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Chong</creatorcontrib><creatorcontrib>Qiao, Yu</creatorcontrib><creatorcontrib>Xiong, Peixun</creatorcontrib><creatorcontrib>Ma, Wenyan</creatorcontrib><creatorcontrib>Bai, Panxing</creatorcontrib><creatorcontrib>Wang, Xue</creatorcontrib><creatorcontrib>Li, Qi</creatorcontrib><creatorcontrib>Zhao, Jin</creatorcontrib><creatorcontrib>Xu, Yunfeng</creatorcontrib><creatorcontrib>Chen, Yu</creatorcontrib><creatorcontrib>Zeng, Jing Hui</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><creatorcontrib>Xu, Yunhua</creatorcontrib><creatorcontrib>Jiang, Jia-Xing</creatorcontrib><title>Conjugated Microporous Polymers with Tunable Electronic Structure for High-Performance Potassium-Ion Batteries</title><title>ACS nano</title><addtitle>ACS Nano</addtitle><description>Conjugated microporous polymers (CMPs) with π-conjugated skeletons show great potential as energy storage materials due to their porous structure and tunable redox nature. However, CMPs and the structure–performance relationships have not been well explored for potassium-ion batteries (KIBs). Here, we report the structure-engineered CMP anodes with tunable electronic structures for high-performance KIBs. The results demonstrate that the electronic structure of the CMPs plays an important role in enhancing potassium storage capability, including the lowest unoccupied molecular orbital (LUMO) distribution, LUMO energy level, and band gap, which can be finely tuned by synthetic control. It was revealed that the poly(pyrene-co-benzothiadiazole) (PyBT) with optimized structure delivers a high reversible capacity of 428 mAh g–1 and shows an excellent cycling stability over 500 cycles. 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However, CMPs and the structure–performance relationships have not been well explored for potassium-ion batteries (KIBs). Here, we report the structure-engineered CMP anodes with tunable electronic structures for high-performance KIBs. The results demonstrate that the electronic structure of the CMPs plays an important role in enhancing potassium storage capability, including the lowest unoccupied molecular orbital (LUMO) distribution, LUMO energy level, and band gap, which can be finely tuned by synthetic control. It was revealed that the poly(pyrene-co-benzothiadiazole) (PyBT) with optimized structure delivers a high reversible capacity of 428 mAh g–1 and shows an excellent cycling stability over 500 cycles. Our findings provide a fundamental understanding in the design of CMP anode materials for high-performance potassium–organic energy storage devices.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>30604957</pmid><doi>10.1021/acsnano.8b08046</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-3279-0652</orcidid><orcidid>https://orcid.org/0000-0002-2191-3875</orcidid><orcidid>https://orcid.org/0000-0003-1818-3661</orcidid><orcidid>https://orcid.org/0000-0002-2833-4753</orcidid></addata></record> |
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| title | Conjugated Microporous Polymers with Tunable Electronic Structure for High-Performance Potassium-Ion Batteries |
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