Sulfur and nitrogen co-doped holey graphene aerogel for structurally resilient solid-state supercapacitors under high compressions
| العنوان: | Sulfur and nitrogen co-doped holey graphene aerogel for structurally resilient solid-state supercapacitors under high compressions |
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| المؤلفون: | Il-Kwon Oh, Moumita Kotal, Hyunjun Kim, Sandipan Roy |
| المصدر: | Journal of Materials Chemistry A. 5:17253-17266 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Supercapacitor, Materials science, Renewable Energy, Sustainability and the Environment, Graphene, Aerogel, Nanotechnology, 02 engineering and technology, General Chemistry, Electrolyte, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Capacitance, Energy storage, 0104 chemical sciences, law.invention, Compressive strength, law, General Materials Science, 0210 nano-technology |
| الوصف: | Structural energy storage devices having load-bearing or stress-tolerant functionalities are crucial for designing wearable and soft electronics. In order to supply power to next-generation electronic systems, structurally resilient solid-state supercapacitors (SRSSs) with sustainable conductivities and electrochemical performances under large compressions are a promising candidate. Here, we report a synthetic porous framework of a nitrogen and sulfur co-doped holey graphene aerogel (NS-HGA) for SRSSs under high compression loadings. Such a covalently interconnected holey graphene nano-architecture co-doped with nitrogen (3.11%) and sulfur (1.87%) has a greatly improved resilient structural integrity, with repeatable elasticity along with high compressive strength. Therefore, the NS-HGA featuring high electrolyte ion storage, unhindered ion channels, excellent conductivity (21.66 S m−1), and promising electrochemical performances exhibits significantly high volumetric capacitance (203 mF cm−3) in a SRSS with good rate capability and almost unaltered capacitance even at 50% compression, with good durability for 200 cycles. Interestingly, when four NS-HGA:SRSSs were integrated into series, a bright green LED was illuminated even after charging for very few seconds. The proposed dual heteroatom-doped holey graphene aerogel, devoid of any pseudocapacitive materials, can be successfully used for high compression-permissive SRSSs in the modern era of wearable and soft elastic electronics. |
| تدمد: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c7ta05237e |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f05c9bce96f9fbb4a779dbf69d2bb250 https://doi.org/10.1039/c7ta05237e |
| رقم الانضمام: | edsair.doi...........f05c9bce96f9fbb4a779dbf69d2bb250 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20507496 20507488 |
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| DOI: | 10.1039/c7ta05237e |