Printed Honeycomb-Structured Reduced Graphene Oxide Film for Efficient and Continuous Evaporation-Driven Electricity Generation from Salt Solution
| العنوان: | Printed Honeycomb-Structured Reduced Graphene Oxide Film for Efficient and Continuous Evaporation-Driven Electricity Generation from Salt Solution |
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| المؤلفون: | Yinghui Sun, Miao Wu, Bo Zhao, Yawen Wang, Meiwen Peng, Zhiqiang Liang, Junchang Zhang, Lin Jiang, Dong Li, Yuanlan Liu |
| المصدر: | ACS Applied Materials & Interfaces. 13:26989-26997 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Microchannel, Materials science, Graphene, business.industry, Evaporation, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Streaming current, 0104 chemical sciences, law.invention, Honeycomb structure, Electricity generation, law, Optoelectronics, General Materials Science, 0210 nano-technology, business, Power density, Voltage |
| الوصف: | Water-evaporation-induced electricity generation provides an ideal strategy to solve growing energy demand and supply power for self-powered systems because of its advantages of a highly spontaneous process, continuous power generation, and low cost. However, the reported evaporation-induced generators are limited to working only in deionized (DI) water, leading to a low output power. Herein, we utilize a modified multiple ion mode to demonstrate that the streaming potential can be optimized in microchannels filled with salt solution and achieve an enhanced evaporation-induced output power in salt solution by a generator based on honeycomb-structured reduced graphene oxide (rGO) film with abundant interconnected microchannels. This generator enables an around 2-fold open-circuit voltage (Voc) and a 3.3-fold power density of 0.91 μW cm-2 in 0.6 M NaCl solution compared to that in DI water. Experiments evidence that the honeycomb structure with abundant interconnected microchannels plays a key role in achieving high and stable output power in salt solution because of its large specific surface area and excellent ion-exchange capacity. Notably, it can work at all times of day and night for more than 240 h in natural seawater, delivering a stable Voc of ∼0.83 V with a power density of 0.79 μW cm-2. This study expands a working solution for water-evaporation-induced electricity generation from DI water to natural seawater, advancing a great step toward practical applications. |
| تدمد: | 1944-8252 1944-8244 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::615abeacdd343feabf84e49821a12315 https://doi.org/10.1021/acsami.1c04508 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....615abeacdd343feabf84e49821a12315 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 19448252 19448244 |
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