Diversified applications of polypyrrole/graphene aerogel in supercapacitors and three-dimensional electrode system
Diversified applications of polypyrrole/graphene aerogel in supercapacitors and three-dimensional electrode system
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聚吡咯/石墨烯气凝胶在超级电容器和三维电极系统中的多样化应用
DOI：
10.1016/j.matlet.2018.04.113
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发表时间：
2018-09
影响因子：
3
通讯作者：
Fei Wang
中科院分区：
文献类型：
--
作者：
Yimei Zhang;Zhuang Chen;D;an Zhang;Yalong Zhao;Panpan Wu;Fei Wang
探索材料的多样化应用，可以充分挖掘材料的可用价值。本文首先采用原位聚合法合成了聚吡咯/石墨烯气凝胶（PGA），并将其应用于超级电容器和三维电催化体系。在5 mV/s时，其比容量达到347.71F/g，循环稳定性良好，2000次循环后仍保持95.0%。三维电极系统表现出优异的催化性能，Cr（VI）的去除率在60 min内接近100%，沿着，重复性好。此外，从超级电容器中回收的PGA被回收并重新用作颗粒电极，并发现回收的PGA仍然具有非常高的活性。该研究为超级电容器废料的再利用提供了新的途径。总之，PGA的优异性能证明它是一种合适的电化学材料。
Exploring the diversified application of materials can fully tap the available value of material. Herein, first we synthesized polypyrrole/graphene aerogel (PGA) with in-situ polymerization, and then applying to supercapacitors and three-dimensional (3D) electrocatalysis system. The electrical capacity reached 347.71F/g at 5 mV/s and satisfactory cycling stability (retaining 95.0% after 2000 cycles). The 3D electrode system showed excellent catalytic performance that the removal rate of Cr(VI) reached nearly 100% within 60 min along with superb repeatability. Furthermore, spent PGA from supercapacitors was recycled and reused as particle electrodes, and found that the reclaimed PGA still had very high activity. This work also provided a new way for the reutilization of waste materials from supercapacitors. Anyhow, excellent performance proved that PGA was an appropriate material in electrochemical fields.
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