The performance of phosphorus (P)-doped activated carbon as a catalyst in air-cathode microbial fuel cells

Chen, Zhihao; Li, Kexun; Pu, Liangtao

doi:10.1016/j.biortech.2014.07.114

Cited by 58 publications

(30 citation statements)

References 32 publications

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“…Among these methods, sorption on activated carbon is one of the most effective, economic and simplest methods for the removal of pollutants from aqueous solutions. Therefore, activated carbons are excellent adsorbents and promising materials that are extensively used in a wide range of applications such as medical uses [10], industrial applications [11], gas storage [12], catalysis [13] and environmental pollution. The activated carbon can be produced from various fossil carbon sources such as lignite, peat and oil residues, however the depletion of these resources encourages researchers to use renewable resources from biomass as precursors for activated carbons [14].…”

Section: Introductionmentioning

confidence: 99%

Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

Tounsadi

Khalidi

Abdennouri

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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Section: Introductionmentioning

confidence: 99%

Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

Tounsadi

Khalidi

Abdennouri

et al. 2016

Journal of the Taiwan Institute of Chemical Engineers

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“…Electron-donor properties of activated carbon can be improved by Phosphorus doping leading to an increased ORR catalytic activity as it can be witnessed in a research where MFC was inoculated by domestic wastewater and acetate used as substrate, they used AC treated with H 3 PO 4 (1 M) at 400°C as ORR catalyst and attained maximum power density of 1096 ± 33 mW/m 2 which was 55% higher than the benchmark. This improvement was said to be the result of decreased Ohmic and charge transfer resistance due to the P atom inserted into AC surface [32]. The same increment was observed by Qin Liu et al [71] when a P-doped carbon obtained [58].…”

Section: Methods For Modification Of Activated Carbon Catalyst Heteromentioning

confidence: 52%

“…All heteroatoms have a greater or lesser attraction for electrons than carbon does. Thus, each bond between a carbon and a heteroatom is polar, therefore, integrating heteroatoms, such as Nitrogen [63,64], Phosphorus [32,65], Sulfur [66], and Boron [67] into the carbon framework has been demonstrated to largely enhance properties like: surface polarity, semi-conducting, fieldemission, mechanical, and electrical behaviors of carbon materials [68]. Heteroatoms breaks electro-neutrality of adjacent carbon atoms, creating complementary charged sites on which oxygen can be absorbed and reduced; thus demonstrating high-efficiency ORR catalytic activities [69].…”

Section: Methods For Modification Of Activated Carbon Catalyst Heteromentioning

confidence: 99%

“…For instance, a MFC well fitted with an AC cathode bonded with a polytetrafluoroethylene (PTFE) and the current collected by nickel brought about 1220 mWm −2 greater to 1060 mWm −2 achieved using a Pt catalyst cathode (0.5 mg-Pt cm −2 ) and a Nafion binder [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48] ) AC powder [50].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing Catalyst Efficiency of Activated Carbon for Oxygen Reduction Reaction in Air Cathode Microbial Fuel Cell Application

Muhoza¹,

Ma²,

Kalakodio³

et al. 2017

Int J Waste Resour

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IntroductionMicrobial fuel cell (MFC) is a potential environmental friendly bioelectrochemical system as it combines treatment of organic wastes and electric energy generation [1][2][3][4]. In MFCs, the electrochemically active microorganisms' biofilm colonizes the anodic surface thus oxidizing organic pollutants producing electrons and protons. Electrons are transferred through an external circuit to the cathode where are received by the terminal electron acceptor while protons migrate through the membrane or solution to the cathode to keep electrical neutrality which creates potential difference [1,5]. Several applications of this technology such as hydrogen gas production [6], hydrogen peroxide generation [7], desalination [8][9][10], remote sensors and monitoring devices [11,12] metal recovery at cathode [13] and robots [12,14] to mention but few, have been studied and left researchers with more innovation ideas in the field. Having electrochemical processes catalyzed by biological processes in addition to some other design parameters such as engineering of microbial biofilm structure, decrypting electron transfer mechanisms, cell/reactor configuration, electrode materials and geometries, substrate concentration, retention time, and optimizing cathode catalysts [15,16] makes this system more sensitive to internal losses and gives it a certain level of complexity [17,18]. This and other challenges that are still unanswered are the bottlenecks for MFC application in real environment [15,19]. Therefore, current researches focus on limiting factors and ways to curb their effects thus increasing the performance [2,20,21]. Among others, is trying different MFC design configurations where MFC aircathode proved to more advantageous over double chamber for scaling up because of its simple structure, low cost and direct use oxygen in air, which could removes aeration from conventional wastewater treatment process [5,22]. Due to its high reduction potential and inexhaustible source, Oxygen is the most fairly used terminal electron acceptor and is considered to be competent for MFC air-cathode application and scale up as it plays a critical role in both organic oxidation and energy recovery at the cathode [23]. AbstractMicrobial fuel cell (MFC) air cathode present a great potential among other configurations due to its simple design, low cost and direct use oxygen from air as terminal electron acceptor which could help to save tremendous energy used for aeration in conventional wastewater treatment. However, at the cathode oxygen reduction reaction which is vital to generate high power density is naturally slow, therefore a catalyst is needed to overcome its reaction over-potential. Platinum (Pt) is the standard used catalyst in large number of oxidation reduction reactions whether in basic or acidic electrolytes. But, due to its high cost and limited resources it doesn't make it a sustainable candidate for scaling up of this juvenile technology. Activated carbon was found to be a low cost and environmental friendly Ox...

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“…However stability is still a problem due to the leaching of non-nobel metal ions. Moreover, this behavior of non-nobel metals result in additional metal ion pollution (Yuan et al, 2014;Cheng and Wu, 2013;Chen et al, 2014).…”

Section: Introductionmentioning

confidence: 98%

The development of catalytic performance by coating Pt–Ni on CMI7000 membrane as a cathode of a microbial fuel cell

Çetinkaya

Özdemir

Köroğlu

et al. 2015

Bioresource Technology

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The performance of phosphorus (P)-doped activated carbon as a catalyst in air-cathode microbial fuel cells

Cited by 58 publications

References 32 publications

Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

Enhancing Catalyst Efficiency of Activated Carbon for Oxygen Reduction Reaction in Air Cathode Microbial Fuel Cell Application

The development of catalytic performance by coating Pt–Ni on CMI7000 membrane as a cathode of a microbial fuel cell

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