Monolithic three-dimensional graphene frameworks derived from inexpensive graphite paper as advanced anodes for microbial fuel cells

Rao, Yuan; Zeng, Yinxiang; Zhao, Yitong; Yu, Minghao; Cheng, Faliang; Lu, Xihong; Tong, Yexiang

doi:10.1039/c6ta00992a

Cited by 45 publications

(12 citation statements)

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“…Also, there were many works about the electrochemical modification of CC and CFP. For example, CFP can be exfoliated in a mixed acid solution containing H 2 SO 4 ‐HNO 3 with a voltage of 15 V for 30 min, or at 2 V for 10 min depended on the thickness of the CFP. Due to the surface graphene structures introduced by thus electrochemical method, the conductivity, surface area and oxygen groups of the CFP are increased obviously, resulting in the enhanced capacitances.…”

Section: Modification and Improvement Of Carbon‐fiber Materials Electrmentioning

confidence: 99%

Recent Advances toward Achieving High‐Performance Carbon‐Fiber Materials for Supercapacitors

et al. 2017

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State-of-the-art energy storage devices are highly attractive for the ever-worsening energy depletion and environmental deterioration. Among various candidates, supercapacitors (SCs) have been considered among the most promising energy storage devices. As key factors for the development of SCs, the electrode materials have been widely exploited, and great achievements have been made. Among these materials, carbonfiber materials, such as carbon nanofibers (CNFs), carbon cloths (CCs), and carbon fiber papers (CFPs), are considered as promising candidates for electrodes and supports/current collectors for other electrode materials, owing to their special physical/chemical properties and structures. This Minireview aims to provide an overview of recent advances and technologies to improve the electrochemical performance of these carbon-fiber materials and their composite electrodes. We also briefly outline the current challenges and perspectives for the development of these carbon-fiber materials and carbon-fiberbased composite electrode materials.[a] Dr.

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Section: Modification and Improvement Of Carbon‐fiber Materials Electrmentioning

confidence: 99%

Recent Advances toward Achieving High‐Performance Carbon‐Fiber Materials for Supercapacitors

et al. 2017

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“…Impressively, the first and second feeding cycle of Mo 2 C/G‐MFC were about 200 h (coulombic efficiency 5.3 %) and substantially increases to about 300 h (coulombic efficiency 8.7 %) in the third cycle. Such long cyclic durability and high coulombic efficiency are even better than the performance of the MFC based on 3D graphene frameworks anode [20] . Moreover, the energy recovery efficiency can be further improved with the increase of the mass loading of the composite (Figure S10).…”

Section: Figurementioning

confidence: 97%

“…In the air‐cathode MFCs, a piece of CP (3 cm×4 cm) coated with PTFE waterproof layers on one side and 40 % Pt/C (0.5 mg cm −2 ) on the other side was used as the cathode [21] . Then, the as‐prepared CP cathode was hot‐pressed with a cation exchange membrane to form a hybrid membrane cathode [20] . A duplicate of all the anodes was constructed and installed as well as operating at the same times.…”

Section: Figurementioning

confidence: 99%

Mo₂C/Reduced Graphene Oxide Composites with Enhanced Electrocatalytic Activity and Biocompatibility for Microbial Fuel Cells

Guo

Rao

Liu

et al. 2021

Chemistry A European J

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A simple, cost‐effective strategy was developed to effectively improve the electron transfer efficiency as well as the power output of microbial fuel cells (MFCs) by decorating the commercial carbon paper (CP) anode with an advanced Mo2C/reduced graphene oxide (Mo2C/RGO) composite. Benefiting from the synergistic effects of the superior electrocatalytic activity of Mo2C, the high surface area, and prominent conductivity of RGO, the MFC equipped with this Mo2C/RGO composite yielded a remarkable output power density of 1747±37.6 mW m−2, which was considerably higher than that of CP‐MFC (926.8±6.3 mW m−2). Importantly, the composite also facilitated the formation of 3D hybrid biofilm and could effectively improve the bacteria–electrode interaction. These features resulted in an enhanced coulombic efficiency up 13.2 %, nearly one order of magnitude higher than that of the CP (1.2 %).

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“…Due to the biological reaction that occurs on the surface of the anode electrodes, the biocompatibility of anode electrode materials is essential in determining the power output of MFCs [ 85 , 86 , 87 ]. The biocompatibility of electrode materials can be summarized via two aspects.…”

Section: Development Of Graphene-modified Electrodes In Microbial mentioning

confidence: 99%

Applications of Graphene-Modified Electrodes in Microbial Fuel Cells

Wang

2016

Materials

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Graphene-modified materials have captured increasing attention for energy applications due to their superior physical and chemical properties, which can significantly enhance the electricity generation performance of microbial fuel cells (MFC). In this review, several typical synthesis methods of graphene-modified electrodes, such as graphite oxide reduction methods, self-assembly methods, and chemical vapor deposition, are summarized. According to the different functions of the graphene-modified materials in the MFC anode and cathode chambers, a series of design concepts for MFC electrodes are assembled, e.g., enhancing the biocompatibility and improving the extracellular electron transfer efficiency for anode electrodes and increasing the active sites and strengthening the reduction pathway for cathode electrodes. In spite of the challenges of MFC electrodes, graphene-modified electrodes are promising for MFC development to address the reduction in efficiency brought about by organic waste by converting it into electrical energy.

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Monolithic three-dimensional graphene frameworks derived from inexpensive graphite paper as advanced anodes for microbial fuel cells

Abstract: Three dimensional graphene-based frameworks (3DGFs) hold great promise for microbial fuel cells (MFCs) due to their macroporous structure, outstanding electrical conductivity, high surface area and prominent biocompatibility.

Cited by 45 publications

References 58 publications

Recent Advances toward Achieving High‐Performance Carbon‐Fiber Materials for Supercapacitors

Recent Advances toward Achieving High‐Performance Carbon‐Fiber Materials for Supercapacitors

Mo₂C/Reduced Graphene Oxide Composites with Enhanced Electrocatalytic Activity and Biocompatibility for Microbial Fuel Cells

Applications of Graphene-Modified Electrodes in Microbial Fuel Cells

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Monolithic three-dimensional graphene frameworks derived from inexpensive graphite paper as advanced anodes for microbial fuel cells

Abstract: Three dimensional graphene-based frameworks (3DGFs) hold great promise for microbial fuel cells (MFCs) due to their macroporous structure, outstanding electrical conductivity, high surface area and prominent biocompatibility.

Cited by 45 publications

References 58 publications

Recent Advances toward Achieving High‐Performance Carbon‐Fiber Materials for Supercapacitors

Recent Advances toward Achieving High‐Performance Carbon‐Fiber Materials for Supercapacitors

Mo2C/Reduced Graphene Oxide Composites with Enhanced Electrocatalytic Activity and Biocompatibility for Microbial Fuel Cells

Applications of Graphene-Modified Electrodes in Microbial Fuel Cells

Contact Info

Product

Resources

About

Mo₂C/Reduced Graphene Oxide Composites with Enhanced Electrocatalytic Activity and Biocompatibility for Microbial Fuel Cells