Non-precious metal doped carbon nanofiber air-cathode for Microbial Fuel Cells application: Oxygen reduction reaction characterization and long-term validation

Bosch‐Jimenez, Pau; Martínez-Crespiera, Sandra; Amantia, David; Pirriera, Mónica Della; Forns, Isabel; Shechter, Ronen; Borràs, Eduard

doi:10.1016/j.electacta.2016.12.175

Cited by 44 publications

(15 citation statements)

References 33 publications

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“…Figure 13d, which is a plot of I sp 2 /I sp 3 against vanadium content, reveals that the degree of graphitization for the carbon in the LiFePO 4 /C composites increases with the content of vanadium. Subsequently, this observation does confirm that V 2 O 3 increases the conductivity of the LiFePO 4 /C since conductivity of carbon materials is knowingly proportional to degree of graphitization [91].…”

Section: Enhancing Electronic Conductivity Of Olivine Cathode Materialsmentioning

confidence: 74%

A Comparative Review of Metal Oxide Surface Coatings on Three Families of Cathode Materials for Lithium Ion Batteries

et al. 2021

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In the recent years, lithium-ion batteries have prevailed and dominated as the primary power sources for mobile electronic applications. Equally, their use in electric resources of transportation and other high-level applications is hindered to some certain extent. As a result, innovative fabrication of lithium-ion batteries based on best performing cathode materials should be developed as electrochemical performances of batteries depends largely on the electrode materials. Elemental doping and coating of cathode materials as a way of upgrading Li-ion batteries have gained interest and have modified most of the commonly used cathode materials. This has resulted in enhanced penetration of Li-ions, ionic mobility, electric conductivity and cyclability, with lesser capacity fading compared to traditional parent materials. The current paper reviews the role and effect of metal oxides as coatings for improvement of cathode materials in Li-ion batteries. For layered cathode materials, a clear evaluation of how metal oxide coatings sweep of metal ion dissolution, phase transitions and hydrofluoric acid attacks is detailed. Whereas the effective ways in which metal oxides suppress metal ion dissolution and capacity fading related to spinel cathode materials are explained. Lastly, challenges faced by olivine-type cathode materials, namely; low electronic conductivity and diffusion coefficient of Li+ ion, are discussed and recent findings on how metal oxide coatings could curb such limitations are outlined.

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Section: Enhancing Electronic Conductivity Of Olivine Cathode Materialsmentioning

confidence: 74%

A Comparative Review of Metal Oxide Surface Coatings on Three Families of Cathode Materials for Lithium Ion Batteries

et al. 2021

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“…PGM-free catalysts are based on a transition metal associated with carbon and nitrogen and indicated with the acronym of M-N-C in which M is usually Mn, Fe, Co, Ni. Several successful examples of Mn-based [380] , [381] , [382] , [383] , Fe-based [348] , [349] , [384] , [385] , [386] , [387] , [388] , [389] , [390] , [391] , [392] , Co-based [393] , [394] , [395] , [396] , [397] , [398] , [399] , [400] and Ni-based [393] , [401] , [402] cathode catalysts have been shown in MFCs.…”

Section: Discussionmentioning

confidence: 99%

Microbial fuel cells: From fundamentals to applications. A review

Santoro

Arbizzani

Erable

et al. 2017

Journal of Power Sources

1,334

677

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In the past 10–15 years, the microbial fuel cell (MFC) technology has captured the attention of the scientific community for the possibility of transforming organic waste directly into electricity through microbially catalyzed anodic, and microbial/enzymatic/abiotic cathodic electrochemical reactions. In this review, several aspects of the technology are considered. Firstly, a brief history of abiotic to biological fuel cells and subsequently, microbial fuel cells is presented. Secondly, the development of the concept of microbial fuel cell into a wider range of derivative technologies, called bioelectrochemical systems, is described introducing briefly microbial electrolysis cells, microbial desalination cells and microbial electrosynthesis cells. The focus is then shifted to electroactive biofilms and electron transfer mechanisms involved with solid electrodes. Carbonaceous and metallic anode materials are then introduced, followed by an explanation of the electro catalysis of the oxygen reduction reaction and its behavior in neutral media, from recent studies. Cathode catalysts based on carbonaceous, platinum-group metal and platinum-group-metal-free materials are presented, along with membrane materials with a view to future directions. Finally, microbial fuel cell practical implementation, through the utilization of energy output for practical applications, is described.

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“…Activated carbons, carbon fibers, carbon black and graphene are also use on ORR due to their tuneable surface properties and high surface (Yuan et al, 2016). More recently, air diffusion cathodes using nanofibers doped with transition metal (Bosch-Jimenez et al, 2017) has been proposed for microbial fuel cells. Despite the extensive use of oxygen as electron acceptor in METs, the proof of concept of MDC was developed using a ferricyanide catholyte (i.e.…”

Section: Introductionmentioning

confidence: 99%

Comparative Performance of Microbial Desalination Cells Using Air Diffusion and Liquid Cathode Reactions: Study of the Salt Removal and Desalination Efficiency

et al. 2019

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Microbial Desalination Cell (MDC) represents an innovative technology which accomplishes simultaneous desalination and wastewater treatment without external energy input. MDC technology could be employed to provide freshwater with low-energy input, for example, in remote areas where organic wastes (i.e., urban or industrial) are available. In addition, MDC technology has been proposed as pre-treatment in conventional reverse osmosis plants, with the aim of saving energy and avoiding greenhouse gases related to conventional desalination processes. The use of oxygen reduction (i.e. O 2 + 2H 2 O + 4e − → 4 OH − , E 0 ′ = 0.815 V, pH = 7) was usually implemented as cathodic reaction in most of the MDCs reported in literature, whereas other strategies based on liquid catholytes have been also proposed, for example, ferroferricyanide redox couple (i.e. Fe(CN) 3− 6 + 1e − → Fe(CN) 4− 6 , E 0 = 0.37 V). As the MDC designs in the literature and operation modes (i.e., batch, continuous, semi-continuous, etc.) are quite different, the available MDC studies are not directly comparable. For this reason, the main objective of this work was to have a proper comparison of two similar MDCs operating with two different catholyte strategies, and compare performance and desalination efficiencies. In this sense, this study compares the desalination performance of two laboratory-scale MDCs located in two different locations for brackish water and sea water using two different strategies. The first strategy consisted of an air cathode for efficient oxygen reduction, while the second strategy was based on a liquid catholyte with Fe 3+ /Fe 2+ solution (i.e., ferro-ferricyanide complex). Both strategies achieved desalination efficiency above 90% for brackish water. Nominal desalination rates (NDR) were in the range of 0.17-0.14 L•m −2 •h −1 for brackish and seawater with air diffusion cathode MDC, respectively, and 1.5-0.7 L•m −2 •h −1 when using ferro-ferricyanide redox MDC. Organic matter present in wastewater was effectively removed at 0.9 and 1.1 kg COD•m −3 •day −1 using the air diffusion cathode MDC for brackish and Ramírez-Moreno et al.Comparative Performance of Microbial Desalination Cells sea water, respectively, and 7.1 and 19.7 kg COD•m −3 •day −1 with a ferro-ferricyanide redox MDC. Both approaches used a laboratory MDC prototype without any energy supply (excluding pumping energy). Pros and cons of both strategies are discussed for subsequent upscaling of MDC technology.

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Non-precious metal doped carbon nanofiber air-cathode for Microbial Fuel Cells application: Oxygen reduction reaction characterization and long-term validation

Cited by 44 publications

References 33 publications

A Comparative Review of Metal Oxide Surface Coatings on Three Families of Cathode Materials for Lithium Ion Batteries

A Comparative Review of Metal Oxide Surface Coatings on Three Families of Cathode Materials for Lithium Ion Batteries

Microbial fuel cells: From fundamentals to applications. A review

Comparative Performance of Microbial Desalination Cells Using Air Diffusion and Liquid Cathode Reactions: Study of the Salt Removal and Desalination Efficiency

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