Nanoparticle decorated anodes for enhanced current generation in microbial electrochemical cells

Fan, Yining; Xu, Shoutao; Schaller, Rebecca; Jiao, Jun; Chaplen, Frank; Liu, Hong

doi:10.1016/j.bios.2010.05.006

Cited by 158 publications

(66 citation statements)

References 34 publications

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“…Au and Pd nanoparticle modified anode have been investigated in MEC. The results showed that their applications could obviously enhance the current density and confirmed that such enhancement was affected by the chemical composition and the size and shape of nanoparticles [116].…”

Section: Gold and Palladiummentioning

confidence: 60%

Behavior of metal ions in bioelectrochemical systems: A review

Dingming

et al. 2015

Journal of Power Sources

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Section: Gold and Palladiummentioning

confidence: 60%

Behavior of metal ions in bioelectrochemical systems: A review

Dingming

et al. 2015

Journal of Power Sources

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“…However, it is rather rear and expensive metal [9e15]. Partial substitution of Pt and decrease of catalyst amount are among the main strategies for cost reduction [9,15,16]. It has been demonstrated [17] that PteAu electrocatalysts show higher area-specific activity than platinum nanoparticles alone.…”

Section: Introductionmentioning

confidence: 99%

Effect of the support material type on the electrocatalytic activity of Pd–Au electrodeposits in neutral electrolyte

Chorbadzhiyska

Mitov

Nalbandian

et al. 2015

International Journal of Hydrogen Energy

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“…Enhanced performance of biosensors and microbial fuel cells has been achieved with metal nanoparticles, 17,47,54 which can facilitate electron transfer between the cells and electrode due to the low charge-transfer resistances and high conductivities of the nanoparticles.…”

Section: 53mentioning

confidence: 99%

Improved cathode materials for microbial electrosynthesis

Zhang

Nie

Bain

et al. 2013

Energy Environ. Sci.

353

298

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Microbial electrosynthesis is a promising strategy for the microbial conversion of carbon dioxide to transportation fuels and other organic commodities, but optimization of this process is required for commercialization. Cathodes which enhance electrode-microbe electron transfer might improve rates of product formation. To evaluate this possibility, biofilms of Sporomusa ovata, which are effective in acetate electrosynthesis, were grown on a range of cathode materials and acetate production was monitored over time. Modifications of carbon cloth that resulted in a positive-charge enhanced microbial electrosynthesis. Functionalization with chitosan or cyanuric chloride increased acetate production rates 6-7 fold and modification with 3-aminopropyltriethoxysilane gave rates 3-fold higher than untreated controls. A 3-fold increase in electrosynthesis over untreated carbon cloth cathodes was also achieved with polyaniline cathodes. However, not all strategies to provide positively charged surfaces were successful, as treatment of carbon cloth with melamine or ammonia gas did not stimulate acetate electrosynthesis. Treating carbon cloth with metal, in particular gold, palladium, or nickel nanoparticles, also promoted electrosynthesis, yielding electrosynthesis rates that were 6-, 4.7-or 4.5-fold faster than the untreated control, respectively. Cathodes comprised of cotton or polyester fabric treated with carbon nanotubes yielded cathodes that supported acetate electrosynthesis rates that were $3-fold higher than carbon cloth controls. Recovery of electrons consumed in acetate was $80% for all materials. The results demonstrate that one approach to increase rates of carbon dioxide reduction in microbial electrosynthesis is to modify cathode surfaces to improve microbe-electrode interactions. Broader contextMicrobial electrosynthesis is a recently conceived bioenergy strategy in which microorganisms use electrons derived from electrodes to reduce carbon dioxide to organic products that are excreted from the cells. Any form of electrical energy can power microbial electrosynthesis, but when electricity is obtained from solar technologies and water is the source of electrons, microbial electrosynthesis is an articial form of photosynthesis with many potential advantages over biomassbased energy strategies. This study demonstrates that there are several strategies for modifying cathode surface properties that can enhance rates of microbial electrosynthesis.

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Nanoparticle decorated anodes for enhanced current generation in microbial electrochemical cells

Cited by 158 publications

References 34 publications

Behavior of metal ions in bioelectrochemical systems: A review

Behavior of metal ions in bioelectrochemical systems: A review

Effect of the support material type on the electrocatalytic activity of Pd–Au electrodeposits in neutral electrolyte

Improved cathode materials for microbial electrosynthesis

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