CoFe alloy nanoparticles embedded in vertically grown nanosheets on N-doped carbon nanofibers as a trifunctional electrocatalyst for high-performance microbial fuel cells

Xu, Haoshan; Huang, Shuhong; Zeng, Xiaoxi; Li, Ling; Zhao, Xinbing; Zhang, Wenming

doi:10.1016/j.apsusc.2022.155452

Cited by 10 publications

(6 citation statements)

References 60 publications

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“…In response to the challenges encountered by single metal M─N─C catalysts, such as susceptibility to agglomeration, low resistance to poison effect, and poor electrical conductivity, [148,149] researchers have recently tuned to the development of binary metal-based catalysts incorporated within an N-doped carbon framework, yielding encouraging results. The unique properties of the binary system, including the synergistic effects between the two metals, may facilitate the creation of new active sites and enable precise control over reaction pathways.…”

Section: Binary Metal─nitrogen─carbon Systemsmentioning

confidence: 99%

Recent Development and Future Frontiers of Oxygen Reduction Reaction in Neutral Media and Seawater

Vo,

Gao,

Liu

2024

Adv Funct Materials

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The oxygen reduction reaction (ORR) in neutral media is of great importance due to its potential to optimize energy generation and storage application. With the increasing urgency for sustainable and efficient energy solutions, comprehensively understanding and enhancing ORR performance in such media have become crucial. This review aims to shed light on this critical yet challenging area. This review encapsulates the fundamental principle of ORR and the latest breakthrough in the field of electrocatalysts, with a distinct focus on innovative synthesis strategies for creating novel, efficient, and robust electrocatalysts. A succinct evaluation of the strengths, limitations, performance, and reaction mechanism is presented. The essential findings are analyzed and their implications for future research directions. Finally, an outlook on current advances, challenges, and future research recommendations is provided. This review serves as a stepping‐stone toward harnessing the underutilizing energy potential within the extensive aquatic environment.

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Section: Binary Metal─nitrogen─carbon Systemsmentioning

confidence: 99%

Recent Development and Future Frontiers of Oxygen Reduction Reaction in Neutral Media and Seawater

Vo,

Gao,

Liu

2024

Adv Funct Materials

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“…In an MFC system, electroactive microbes (e.g., bacteria or yeast) can be utilized in the biological treatment of wastewater via biochemical reactions to convert directly chemical energy into electrical energy [92]. The electricity can be generated in MFC systems through biodegrading organic pollutants in water bodies to obtain a new eco-friendly energy technology that has no biofouling, low operating cost, and a wide range of substrate sewage treatments [93,94]. Several recent studies focused on microbial energy under different conditions as presented in Table 2.…”

Section: Nanofibers In Energy Sectormentioning

confidence: 99%

“…Electrospinning and metal-organic framework Enhances the bioelectrocatalysis activity and promotes the direct electron transfer process of electroactive bacteria to improve the sluggish extracellular electron transport process of microbial fuel cell anode [96] Carbon nanofibers Electrospinning Decorated electrospinning C-nanofibers can save more exoelectrogens colonization, higher electrocatalytic activity, and more efficient interspecies interactions in the microbial fuel cell [92] N-doped carbon nanofibers Electrospinning N-doped C-nanofibers embedded in vertical-grown nanosheets improved the surface area of the material, preventing the agglomeration of Co and Co-Fe alloy NPs as a new approach for regenerating and conversion of the clean energy [94] Bacteria/electrospun oriented C-nanofibers Electrospinning…”

Section: Fe-co Bimetallic With Carbon Nanofibersmentioning

confidence: 99%

Biotechnology of Nanofiber in Water, Energy, and Food Sectors

Prokisch,

Sári,

Muthu

et al. 2023

Agronomy

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Natural resources including water, energy, and food have an increase in demand due to the global population increases. The sustainable management of these resources is an urgent global issue. These resources combined in a very vital nexus are called the water–energy–food (WEF) nexus. The field of nanotechnology offers promising solutions to overcome several problems in the WEF nexus. This review is the first report that focuses on the suggested applications of nanofibers in the WEF sectors. An economic value of nanofibers in WEF sectors was confirmed, which was mainly successfully applied for producing clean water, sustainable energy, and safe food. Biotechnological solutions of nanofibers include various activities in water, energy, and food industries. These activities may include the production of fresh water and wastewater treatment, producing, converting, and storing energy, and different activities in the food sector. Furthermore, microbial applications of nanofibers in the biomedicine sector, and the most important biotechnological approaches, mainly plant tissue culture, are the specific focus of the current study. Applying nanofibers in the field of plant tissue culture is a promising approach because these nanofibers can prevent any microbial contamination under in vitro conditions, but the loss of media by evaporation is the main challenge in this application. The main challenges of nanofiber production and application depend on the type of nanofibers and their application. Different sectors are related to almost all activities in our life; however, enormous open questions still need to be answered, especially the green approach that can be used to solve the accumulative problems in those sectors. The need for research on integrated systems is also urgent in the nexus of WEF under the umbrella of environmental sustainability, global climate change, and the concept of one’s health.

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“…Long et al reported CoFe-LDH on partially reduced GO (p-rGO) showed 30 times higher MFC performance than the blank due to more the active sites, structural and interlayer diffusion properties of the catalyst (Long et al, 2023). Remarkably, the fantastic ORR activity in the MFC applications of carbon based composites such as Cu 2 O@Co/N-C (Chen et al, 2023), Fe-N-C (Kumar D. et al, 2023;Zhang et al, 2023), FeCoNi@N-C (Kaur Dhillon and Paban Kundu, 2023), Fe/ Co-N-C (Liu et al, 2023;Zhuang et al, 2023), Co/CoS 2 @N-CNF (Guo et al, 2023), Co/CoFe NAs@NCNFs (Wang et al, 2023a), etc., were witnessed in several recent reports. The maximum power density, wastewater, and cell configuration with important remarks corresponding to some significant non-precious carbonbased ORR electrocatalysts for the MFC applications are summarized in Table 3.…”

Section: Figurementioning

confidence: 99%

Outline of microbial fuel cells technology and their significant developments, challenges, and prospects of oxygen reduction electrocatalysts

Elangovan,

Saravanan,

Campos

et al. 2023

Front. Chem. Eng.

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The microbial fuel cells (MFCs) which demonstrates simultaneous production of electricity and wastewater treatment have been considered as one of the potential and greener energy production technology among the available bioelectrochemical systems. The air-cathode MFCs have gained additional benefits due to using air and avoiding any chemical substances as catholyte in the cathode chamber. The sluggish oxygen reduction reaction (ORR) kinetics at the cathode is one of the main obstacles to achieve high microbial fuel cell (MFC) performances. Platinum (Pt) is one of the most widely used efficient ORR electrocatalysts due to its high efficient and more stable in acidic media. Because of the high cost and easily poisoned nature of Pt, several attempts, such as a combination of Pt with other materials, and using non-precious metals and non-metals based electrocatalysts has been demonstrated. However, the efficient practical application of the MFC technology is not yet achieved mainly due to the slow ORR. Therefore, the review which draws attention to develop and choosing the suitable cathode materials should be urgent for the practical applications of the MFCs. In this review article, we present an overview of the present MFC technology, then some significant advancements of ORR electrocatalysts such as precious metals-based catalysts (very briefly), non-precious metals-based, non-metals and carbon-based, and biocatalysts with some significant remarks on the corresponding results for the MFC applications. Lastly, we also discussed the challenges and prospects of ORR electrocatalysts for the practical application of MFCs.

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CoFe alloy nanoparticles embedded in vertically grown nanosheets on N-doped carbon nanofibers as a trifunctional electrocatalyst for high-performance microbial fuel cells

Cited by 10 publications

References 60 publications

Recent Development and Future Frontiers of Oxygen Reduction Reaction in Neutral Media and Seawater

Recent Development and Future Frontiers of Oxygen Reduction Reaction in Neutral Media and Seawater

Biotechnology of Nanofiber in Water, Energy, and Food Sectors

Outline of microbial fuel cells technology and their significant developments, challenges, and prospects of oxygen reduction electrocatalysts

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