High efficiency microbial electrosynthesis of acetate from carbon dioxide using a novel graphene–nickel foam as cathode

Song, Tian‐shun; Fei, Kangqing; Zhang, Hongkun; Yuan, Hao; Yang, Yang; Ouyang, Pingkai

doi:10.1002/jctb.5376

Cited by 56 publications

(41 citation statements)

References 51 publications

(181 reference statements)

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“…More recently, a highly performant MES cathode made of multiwalled carbon nanotube coated onto reticulated vitreous carbon was developed (Jourdin et al, 2014(Jourdin et al, , 2015(Jourdin et al, , 2016. The potential of graphene, a robust, cheap and highly conductive material, was also explored for MES (Aryal et al, 2016(Aryal et al, , 2017aChen et al, 2016;Song et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Highly Conductive Poly(3,4-ethylenedioxythiophene) Polystyrene Sulfonate Polymer Coated Cathode for the Microbial Electrosynthesis of Acetate From Carbon Dioxide

Aryal

Tremblay

et al. 2018

Front. Energy Res.

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Microbial electrosynthesis (MES) is a bioelectrochemical technology developed for the conversion of carbon dioxide and electric energy into multicarbon chemicals of interest. As with other biotechnologies, achieving high production rate is a prerequisite for scaling up. In this study, we report the development of a novel cathode for MES, which was fabricated by coating carbon cloth with conductive poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) polymer. Sporomusa ovata-driven MES reactors equipped with PEDOT:PSS-carbon cloth cathodes produced 252.5 ± 23.6 mmol d −1 acetate per m 2 of electrode over a period of 14 days, which was 9.3 fold higher than the production rate observed with uncoated carbon cloth cathodes. Concomitantly, current density was increased to −3.2 ± 0.8 A m −2 , which was 10.7-fold higher than the untreated cathode. The coulombic efficiency with the PEDOT: PSS-carbon cloth cathodes was 78.6 ± 5.6%. Confocal laser scanning microscopy and scanning electron microscopy showed denser bacterial population on the PEDOT:PSS-carbon cloth cathodes. This suggested that PEDOT:PSS is more suitable for colonization by S. ovata during the bioelectrochemical process. The results demonstrated that PEDOT: PSS is a promising cathode material for MES.

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Section: Introductionmentioning

confidence: 99%

Highly Conductive Poly(3,4-ethylenedioxythiophene) Polystyrene Sulfonate Polymer Coated Cathode for the Microbial Electrosynthesis of Acetate From Carbon Dioxide

Aryal

Tremblay

et al. 2018

Front. Energy Res.

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“…In our system, the mixed culture was used as a biocatalyst, and comprehensive synergistic actions might occur between different bacteria. In addition to acetogens, H 2 -producing strains and electrochemically active bacteria account for a large proportion of mixed cultures (Dong et al 2018;Song et al 2017Song et al , 2018. In the present study, a large amount of H 2 was generated in the MES system with high electron consumption as the applied voltage increased.…”

Section: Effect Of the Cell Voltagementioning

confidence: 54%

“…Planktonic cells from an MES system designed by Song et al (2018) were collected, centrifuged, suspended in fresh catholyte, and cultivated in a hydrogen-containing syngas mixture [H 2 /CO 2 (80/20, v/v)]. Subsequent rapid culture transfers (5% inoculum dose) were performed every 3 days.…”

Section: Source Of Microorganisms and Mediummentioning

confidence: 99%

“…Since Nevin et al (2010) first demonstrated the proofof-concept of MES, many crucial elements, such as electrode materials (Bajracharya et al 2015;Jourdin et al 2015;Marshall et al 2013;Song et al 2018), reactor designs (Giddings et al 2015), membranes (Gildemyn et al 2017;Xiang et al 2017), microbial communities (Nevin et al 2011;Patil et al 2015;Modestra and Mohan 2017), and product separation (Bajracharya et al 2017;Batlle-Vilanova et al 2017;Gildemyn et al 2015), have been studied in MES. In comparison with pure strains Nevin et al 2010;Zhang et al 2013), mixed culture (Dong et al 2018;Marshall et al 2013;Modestra and Mohan 2017;Jourdin et al 2014;Patil et al 2015;Song et al 2017Song et al , 2018 is possibly more suitable for the commercialization of MES because it has better resistance to environmental disturbances, high biomass, and acetate production rate (Marshall et al 2013). The production and investment costs of producing acetate by MES (Christodoulou and Velasquez-Orta 2016) were relatively high (1.44 £ kg −1 , 1770 £ t −1 ).…”

Section: Introductionmentioning

confidence: 99%

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Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis

Song

Guang-rong

Wang

et al. 2019

Bioresour. Bioprocess.

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Microbial electrosynthesis (MES) is potentially useful for the biological conversion of carbon dioxide into value-added chemicals and biofuels. The study evaluated several limiting factors that affect MES performance. Among all these factors, the optimization of the applied cell voltage, electrode spacing, and trace elements in catholytes may significantly improve the MES performance. MES was operated under the optimal condition with an applied cell voltage of 3 V, an electrode spacing of 8 cm, 2× salt solution, and 8× trace element of catholyte for 100 days, and the maximum acetate concentration reached 7.8 g L −1 . The microbial community analyses of the cathode chamber over time showed that Acetobacterium, Enterobacteriaceae, Arcobacter, Sulfurospirillum, and Thioclava were the predominant genera during the entire MES process. The abundance of Acetobacterium first increased and then decreased, which was consistent with that of acetate production. These results provided useful hints for replacing the potentiostatic control of the cathodes in the future construction and operation of MES. Such results might also contribute to the practical operation of MES in large-scale systems. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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“…Very recently, researchers have evaluated the enhancement of MES rates through syntrophic growth of SRM with acetogens or methanogens (Deutzmann and Spormann, 2017;Song et al, 2017;Xiang et al, 2017). By adding low concentration of sulfate in the catholyte of a MES, Xiang et al enriched the biocathodic community in Desulfovibrionaceae (37%), resulting in a 2.7-fold increase in acetate production in comparison to a MES with lower abundance of SRM (Desulfovibrionaceae 7.3%).…”

Section: Microbial Electrosynthesis Enhancementmentioning

confidence: 99%

Sulfate-Reducing ElectroAutotrophs and Their Applications in Bioelectrochemical Systems

Agostino

Rosenbaum

2018

Front. Energy Res.

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Electroautotrophs are microbes able to perform different biocathodic reactions by using CO 2 as sole carbon source and electrochemical reducing power as a sole energy source. Electroautotrophy has been discovered in several groups of microorganisms, including iron-oxidizing bacteria, iron-reducing bacteria, nitrate-reducing bacteria, acetogens, methanogens and sulfate-reducing bacteria. The high diversity of electroautrophs results in a wide range of Bioelectrochemical Systems (BES) applications, ranging from bioproduction to bioremediation. In the last decade, particular research attention has been devoted toward the discovery, characterization and application of acetogenic and methanogenic electroautotrophs. Less attention has been given to autotrophic sulfate-reducing microorganisms, which are extremely interesting biocatalysts for multiple BES technologies, with concomitant CO 2 fixation. They can accomplish water sulfate removal, hydrogen production and, in some case, even biochemicals production. This mini-review gives a journey into electroautotrophic ability of sulfate-reducing bacteria and highlights their possible importance for biosustainable applications. More specifically, general metabolic features of autotrophic sulfate reducers are introduced. Recently discovered strains able to perform extracellular electron uptake and possible molecular mechanisms behind this electron transfer capacity are explored. Finally, BES technologies based on sulfate-reducing electroautotrophs are illustrated.

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High efficiency microbial electrosynthesis of acetate from carbon dioxide using a novel graphene–nickel foam as cathode

Cited by 56 publications

References 51 publications

Highly Conductive Poly(3,4-ethylenedioxythiophene) Polystyrene Sulfonate Polymer Coated Cathode for the Microbial Electrosynthesis of Acetate From Carbon Dioxide

Highly Conductive Poly(3,4-ethylenedioxythiophene) Polystyrene Sulfonate Polymer Coated Cathode for the Microbial Electrosynthesis of Acetate From Carbon Dioxide

Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis

Sulfate-Reducing ElectroAutotrophs and Their Applications in Bioelectrochemical Systems

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