Fiber-shaped asymmetric supercapacitor exploiting rGO/Fe2O3 aerogel and electrodeposited MnOx nanosheets on carbon fibers

Serrapede, Mara; Rafique, Amjid; Fontana, Marco; Zine, Abderaouf; Rivolo, Paola; Bianco, Stefano; Chetibi, Loubna; Tresso, Elena Maria; Lamberti, Andrea

doi:10.1016/j.carbon.2018.12.002

Cited by 61 publications

(28 citation statements)

References 52 publications

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“…The slight pair of redox peaks was observed at −0.4 V due to the typical transition between quinone/hydroquinone groups commonly detected on carbon materials in sulfuric acid electrolyte. 59 Figure 5 a compares the CV curves of the carbon microfibers derived from the different precursors measured at a scan rate of 10 mV s –1 . The increased TOCNF loading (from 5 to 33%) significantly improved the total area in the CV profiles, which indicates an increased specific surface area and porosity, as observed in Table 2 and Figure 3S .…”

Section: Resultsmentioning

confidence: 99%

Mesoporous Carbon Microfibers for Electroactive Materials Derived from Lignocellulose Nanofibrils

Borghei

Ishfaq

Lahtinen

et al. 2020

ACS Sustainable Chem. Eng.

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This work was carried out during 2016-2020, under the supervision of Professor Orlando J. Rojas. This dissertation was completed under the framework of the DWoC project funded by Business Finland, the "High-value Products from Lignin" (LIFT) project under the NordForsk program and the "BioELCell" (788489) program under the European Commission H2020-ERC-2017-Advanced Grant. Additional acknowledgement goes to the Paper Engineer's Association and Walter Ahlström foundation for their financial support for conference travels. I like to give my deepest appreciation to Professor Orlando J. Rojas for providing me the opportunity to challenge myself for the duration of my doctoral degree. I feel so lucky to become your student. The process was not that smooth, but you are always there to help me. The trust, freedom, knowledge and patience you have given, were all crucial to get me to this stage. The positive influences do not only go to my scientific research, but also to my attitude to life. I am extremely grateful for all your support and guidance. These words cannot express all my feelings, nor my thanks for all your helps. A special thank you to my thesis advisors Dr. Maryam Borghei and Professor Mariko Ago. Maryam, it was great to work alongside you and discover the topic of my doctoral thesis. As an advisor, you are always there for me. Thank you for helping me fix all the issues on both experiments and writings. Mariko, you were with me during the first two years of my doctoral studies, which was a very important time for growth. In order to find my research topic, we tried numerous experiments together; it was a great experience. I also want to thank Gisela Cunha and Julio Arboleda who were my advisors for a short term but gave me good suggestions and inspirations. My gratitude also goes to the project members in DWoC and LIFT. I am especially thankful to Hannes Orelma for managing the WP6 team with such a wonderful and creative atmosphere. A great thanks goes to Meri Lundhal, who introduced spinning to me and acted as an advisor during the whole PhD process. Thank you for all the training and advices you have given and the introduction to Teraloop. Thanks also go to

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Section: Resultsmentioning

confidence: 99%

Mesoporous Carbon Microfibers for Electroactive Materials Derived from Lignocellulose Nanofibrils

Borghei

Ishfaq

Lahtinen

et al. 2020

ACS Sustainable Chem. Eng.

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“…The deposition of MnO x electrodes on carbon fibers was carried out by a simple 2-step galvanostatic electrodeposition in a three electrodes cell, where a Pt sheet and a Ag/AgCl sat. were used as counter and reference electrodes, respectively, as described elsewhere [ 34 ]. Before starting the electrodeposition, carbon fibers (Panex ® 35, ZOLTEK) were gently cleaned in an acetone, ethanol and deionized water (1:1:1) ratio, and then blocked onto a microscope glass slide with a copper tape, to improve the electrical contact.…”

Section: Methodsmentioning

confidence: 99%

Binder Free and Flexible Asymmetric Supercapacitor Exploiting Mn3O4 and MoS2 Nanoflakes on Carbon Fibers

et al. 2020

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Emerging technologies, such as portable electronics, have had a huge impact on societal norms, such as access to real time information. To perform these tasks, portable electronic devices need more and more accessories for the processing and dispensation of the data, resulting in higher demand for energy and power. To overcome this problem, a low cost high-performing flexible fiber shaped asymmetric supercapacitor was fabricated, exploiting 3D-spinel manganese oxide Mn3O4 as cathode and 2D molybdenum disulfide MoS2 as anode. These asymmetric supercapacitors with stretched operating voltage window of 1.8 V exhibit high specific capacitance and energy density, good rate capability and cyclic stability after 3000 cycles, with a capacitance retention of more than 80%. This device has also shown an excellent bending stability at different bending conditions.

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“…Nearly symmetric GCD curves were observed at 1-10 A g −1 (Figure 5C), indicating an excellent coulombic efficiency and superior capacitance of the α-Fe 2 O 3 /HPC//PANI/HPC ASC. The maximum C asy of α-Fe 2 O 3 /HPC//PANI/HPC ASC is 212 F g −1 at 1 A g −1 (Figure 5D), superior to these published α-Fe 2 O 3 /C//MnO 2 (Dong et al, 2018), Fe 2 O 3 /N-CNT//CuCo 2 O 4 (Gnana Sundara Raj et al, 2020), and CF (carbon fiber)-rGO/Fe 2 O 3 //CF-MnOx (Serrapede et al, 2019), comparable to that of α-Fe 2 O 3 @C//CNTs-COOH (Xu et al, 2019) ( Supplementary Table 1). Figure 5E shows the C asy vs. cycle number plot of the α-Fe 2 O 3 /HPC//PANI/HPC ASC, conducted at 1 A g −1 , which is only 5.8% decay of the original capacity after 5,000 cycles.…”

Section: Electrochemical Measurementsmentioning

confidence: 82%

Porous Fe2O3 Nanorods on Hierarchical Porous Biomass Carbon as Advanced Anode for High-Energy-Density Asymmetric Supercapacitors

Duan

Jiang

2020

Front. Chem.

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In this study, a novel negative electrode material was prepared by aligning α-Fe2O3 nanorods on a hierarchical porous carbon (HPC) skeleton. The skeleton was derived from wheat flour by a facile hydrothermal route to enhance conductivity, improve surface properties, and achieve substantially good electrochemical performances. The α-Fe2O3/HPC electrode exhibits enhanced specific capacitance of 706 F g−1, which is twice higher than that of α-Fe2O3. The advanced α-Fe2O3/HPC//PANI/HPC asymmetrical supercapacitor was built with an expanded voltage of 2.0 V in 1 M Li2SO4, possessing a specific capacitance of 212 F g−1 at 1 A g−1 and a maximum energy density of 117 Wh kg−1 at 1.0 kW kg−1, along with an excellent stability of 5.8% decay in capacitance after 5,000 cycles. This study affords a simple process to develop asymmetric supercapacitors, which exhibit high electrochemical performances and are applicable in next-generation energy storage devices, based on α-Fe2O3 hybrid materials.

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Fiber-shaped asymmetric supercapacitor exploiting rGO/Fe2O3 aerogel and electrodeposited MnOx nanosheets on carbon fibers

Cited by 61 publications

References 52 publications

Mesoporous Carbon Microfibers for Electroactive Materials Derived from Lignocellulose Nanofibrils

Mesoporous Carbon Microfibers for Electroactive Materials Derived from Lignocellulose Nanofibrils

Binder Free and Flexible Asymmetric Supercapacitor Exploiting Mn3O4 and MoS2 Nanoflakes on Carbon Fibers

Porous Fe2O3 Nanorods on Hierarchical Porous Biomass Carbon as Advanced Anode for High-Energy-Density Asymmetric Supercapacitors

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