Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors
Flexible paper electrodes for supercapacitors were prepared with partially-exfoliated graphite and polypyrrole as the active materials. Graphite was coated on paper with pencil drawing and then electrochemically exfoliated using the cyclic voltammetry (CV) technique to obtain the exfoliated graphite...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-01-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2073-4360/10/2/135 |
| _version_ | 1811317640080130048 |
|---|---|
| author | Leping Huang Weida Rao Lingling Fan Jie Xu Zikui Bai Weilin Xu Haifeng Bao |
| author_facet | Leping Huang Weida Rao Lingling Fan Jie Xu Zikui Bai Weilin Xu Haifeng Bao |
| author_sort | Leping Huang |
| collection | DOAJ |
| description | Flexible paper electrodes for supercapacitors were prepared with partially-exfoliated graphite and polypyrrole as the active materials. Graphite was coated on paper with pencil drawing and then electrochemically exfoliated using the cyclic voltammetry (CV) technique to obtain the exfoliated graphite (EG)-coated paper (EG-paper). Polypyrrole (PPy) doped with β-naphthalene sulfonate anions was deposited on EG-paper through in-situ polymerization, leading to the formation of PPy-EG-paper. The as-prepared PPy-EG-paper showed a high electrical conductivity of 10.0 S·cm−1 and could be directly used as supercapacitor electrodes. The PPy-EG-paper electrodes gave a remarkably larger specific capacitance of 2148 F∙g−1 at a current density of 0.8 mA∙cm−2, compared to PPy-graphite-paper (848 F∙g−1). The capacitance value of PPy-EG-paper could be preserved by 80.4% after 1000 charge/discharge cycles. In addition, the PPy-EG-paper electrodes demonstrated a good rate capability and a high energy density of 110.3 Wh∙kg−1 at a power density of 121.9 W∙kg−1. This work will pave the way for the discovery of efficient paper-based electrode materials. |
| first_indexed | 2024-04-13T12:11:45Z |
| format | Article |
| id | doaj.art-9fc717099fbd41828101fc9044370fa4 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-04-13T12:11:45Z |
| publishDate | 2018-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-9fc717099fbd41828101fc9044370fa42022-12-22T02:47:28ZengMDPI AGPolymers2073-43602018-01-0110213510.3390/polym10020135polym10020135Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible SupercapacitorsLeping Huang0Weida Rao1Lingling Fan2Jie Xu3Zikui Bai4Weilin Xu5Haifeng Bao6State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaState Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaSchool of Textile Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaState Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaState Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaState Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaState Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science & Engineering, Wuhan Textile University, Wuhan 430200, ChinaFlexible paper electrodes for supercapacitors were prepared with partially-exfoliated graphite and polypyrrole as the active materials. Graphite was coated on paper with pencil drawing and then electrochemically exfoliated using the cyclic voltammetry (CV) technique to obtain the exfoliated graphite (EG)-coated paper (EG-paper). Polypyrrole (PPy) doped with β-naphthalene sulfonate anions was deposited on EG-paper through in-situ polymerization, leading to the formation of PPy-EG-paper. The as-prepared PPy-EG-paper showed a high electrical conductivity of 10.0 S·cm−1 and could be directly used as supercapacitor electrodes. The PPy-EG-paper electrodes gave a remarkably larger specific capacitance of 2148 F∙g−1 at a current density of 0.8 mA∙cm−2, compared to PPy-graphite-paper (848 F∙g−1). The capacitance value of PPy-EG-paper could be preserved by 80.4% after 1000 charge/discharge cycles. In addition, the PPy-EG-paper electrodes demonstrated a good rate capability and a high energy density of 110.3 Wh∙kg−1 at a power density of 121.9 W∙kg−1. This work will pave the way for the discovery of efficient paper-based electrode materials.http://www.mdpi.com/2073-4360/10/2/135paperpolypyrrolepartially-exfoliated graphitesupercapacitor |
| spellingShingle | Leping Huang Weida Rao Lingling Fan Jie Xu Zikui Bai Weilin Xu Haifeng Bao Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors Polymers paper polypyrrole partially-exfoliated graphite supercapacitor |
| title | Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors |
| title_full | Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors |
| title_fullStr | Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors |
| title_full_unstemmed | Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors |
| title_short | Paper Electrodes Coated with Partially-Exfoliated Graphite and Polypyrrole for High-Performance Flexible Supercapacitors |
| title_sort | paper electrodes coated with partially exfoliated graphite and polypyrrole for high performance flexible supercapacitors |
| topic | paper polypyrrole partially-exfoliated graphite supercapacitor |
| url | http://www.mdpi.com/2073-4360/10/2/135 |
| work_keys_str_mv | AT lepinghuang paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors AT weidarao paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors AT linglingfan paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors AT jiexu paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors AT zikuibai paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors AT weilinxu paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors AT haifengbao paperelectrodescoatedwithpartiallyexfoliatedgraphiteandpolypyrroleforhighperformanceflexiblesupercapacitors |