Study on the Performance of the Micro Direct Ethanol Fuel Cell (Micro-DEFC) for Applying with the Portable Electronic Devices

Saisirirat, Penyarat; Joommanee, Bordindech

doi:10.1016/j.egypro.2017.10.148

Cited by 19 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bioethanol is one of those renewable and eco-friendly fuels (Khatiwada and Silveira, 2011). Besides being used as a fuel, bioethanol can also be used for other purposes such as making bioplastics (Rose and Palkovits, 2011) and development of ethanol fuel cells for electricity generation (Saisirirat and Joommanee, 2017).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Ethanol Production in Electrochemical Cell by Saccharomyces cerevisiae (CDBT2) and Wickerhamomyces anomalus (CDBT7)

et al. 2019

View full text Add to dashboard Cite

Bioethanol (a renewable resource), blended with gasoline, is used as liquid transportation fuel worldwide and produced from either starch or lignocellulose. Local production and use of bioethanol supports local economies, decreases country's carbon footprint and promotes self-sufficiency. The latter is especially important for bio-resource-rich landlocked countries like Nepal that are seeking alternative transportation fuels and technologies to produce them. In that regard, in the present study, we have used two highly efficient ethanol producing yeast strains, viz., Saccharomyces cerevisiae (CDBT2) and Wickerhamomyces anomalous (CDBT7), in an electrochemical cell to enhance ethanol production. Ethanol production by CDBT2 (anodic chamber) and CDBT7 (cathodic chamber) control cultures, using 5% glucose as substrate, were 12.6 ± 0.42 and 10.1 ± 0.17 mg•mL −1 respectively. These cultures in the electrochemical cell, when externally supplied with 4V, the ethanol production was enhanced by 19.8 ± 0.50% and 23.7 ± 0.51%, respectively, as compared to the control cultures. On the other hand, co-culturing of those two yeast strains in both electrode compartments resulted only 3.96 ± 0.83% enhancement in ethanol production. Immobilization of CDBT7 in the graphite cathode resulted in lower enhancement of ethanol production (5.30 ± 0.82%), less than free cell culture of CDBT7. CDBT2 and CDBT7 when cultured in platinum nano particle coated platinum anode and neutral red-coated graphite cathode, respectively, ethanol production was substantially enhanced (52.8 ± 0.44%). The above experiments when repeated using lignocellulosic biomass hydrolysate (reducing sugar content was 3.3%) as substrate, resulted in even better enhancement in ethanol production (61.5 ± 0.12%) as compared to glucose. The results concluded that CDBT2 and CDBT7 yeast strains produced ethanol efficiently from both glucose and lignocellulosic biomass Joshi et al. Enhancement of Ethanol Production in Electrochemical Cell hydrolysate. Ethanol production was enhanced in the presence of low levels of externally applied voltage. Ethanol production was further enhanced with the better electron transport provision i.e., when neutral red was deposited on cathode and fine platinum nanoparticles were coated on the platinum anode.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhancement of Ethanol Production in Electrochemical Cell by Saccharomyces cerevisiae (CDBT2) and Wickerhamomyces anomalus (CDBT7)

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The auxiliary power units market is consider a growing field of production because fuel cells offer a low-emission and low-noise technology. So, using the data collected in literature (Saisirirat and Joommanee, 2017), for a 100 W Direct Ethanol Fuel Cell (DEFC) we can evaluate 23.8 EUR of cost for the CO 2 environmental impact.…”

Section: Application 1: Co 2 Emission Cost In Defc Technologymentioning

confidence: 99%

Exergy Inefficiency: An Indicator for Sustainable Development Analysis

Lucia

Grisolia

2018

Preprint

View full text Add to dashboard Cite

The present days can be considered a crossroad in the history our word because the economic, social and ecological needs don't agree one another. The result is a continuous growth of poverty and an increase of the ecological degradation. This has generated the present difficult socio-economic state, and it seems very difficult to escape. A new viewpoint must be introduced, but it cannot based on the usual economic indicators. So, new indicators must be introduced. They must allow us to consider the technological level, the environmental impact and the socio-economic conditions. In this paper we suggest three indicators based on an engineering approach of irreversibility. Three applications are shown in order to highlight the possible interest from different scientists and researchers in engineering, economy, etc, in order to develop sustainable approaches and policies for decision makers.

show abstract

“…2,3 Direct ethanol fuel cells (DEFCs), with respect to the direct methanol and/or hydrogen fuel cells, possess promising prospect for large-scale applications due to low cost, low toxicity, and relatively accessible transportation and storage and for its comparable energy density to gasoline engines during one complete electro-oxidation cycle, 4−7 which results in a lot of efforts toward advancing the DEFC technology, 8 including development of portable electronic devices of micro-DEFC. 9 One of the challenges in EOR catalysis research is the involvement of many elementary reactions in the reaction network. Unlike the catalytic oxygen reduction, 10−12 there are 46 dehydrogenation reactions and 24 possible C−C bond cleavages of C 2 H x O species in anode catalysis.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, ethanol can be used directly as fuel in fuel cells that are considered to be more sustainable, more environmentally friendly, and more efficient . Fuel cells are gaining growing attention due to the reduction of CO 2 footprint through high thermodynamic efficiency. , Direct ethanol fuel cells (DEFCs), with respect to the direct methanol and/or hydrogen fuel cells, possess promising prospect for large-scale applications due to low cost, low toxicity, and relatively accessible transportation and storage and for its comparable energy density to gasoline engines during one complete electro-oxidation cycle, − which results in a lot of efforts toward advancing the DEFC technology, including development of portable electronic devices of micro-DEFC …”

Section: Introductionmentioning

confidence: 99%

Activity Enhancement of PtIr Catalysts for Complete Ethanol Oxidation Reaction by Tuning C–O Coupling Abilities

Wang

2022

J. Phys. Chem. C

View full text Add to dashboard Cite

Designing efficient catalysts for the complete ethanol oxidation reaction (EOR) remains challenging because of its complex reaction network, which involves more than 70 reactions of C2 species, many reactions of C1 species, water dissociation, as well as reactions leading to by-products. Recently, the promising EOR performance of the one-atom-thick Ir-rich skin of a bimetallic PtIr electrocatalyst was illustrated and its further improvement requires a thorough understanding of the complete EOR mechanism that is still largely lacking. Therefore, we studied 58 critical elementary reactions of complete EOR including all three stages of catalysis of ethanol oxidation, i.e., dehydrogenation, C–C bond cleavage, and CO2 formation, as well as including water dissociation, on three (100)-exposed layered bimetallic Pt–Ir catalysts using density functional theory (DFT) calculations. Based on the activation and reaction energies, we mapped out the mechanisms of complete EOR on these layered PtIr catalysts. The DFT results demonstrated that the different C–O coupling abilities of the catalyst plays a leading role in the complete EOR performance of Pt–Ir catalysts. We further performed DFT studies on the reactions on a Ir@Pt(100) surface with about 6% Pt atoms on the Ir layer. The surface Pt atoms exhibit excellent C–O coupling of C1 species (e.g., CO + O → CO2), while the Ir atoms prevent the C–OH coupling to form CH3COOH (CH3CO + OH → CH3COOH). Both DFT and kinetics studies indicate that the Ir@Pt(100) surface with Pt-doped active sites is the best for complete EOR and is responsible for the experimentally observed high catalytic performance. This work indicates effective EOR catalysis need to go beyond single metal catalysts and the core–shell structures of multimetallic catalysts.

show abstract

Study on the Performance of the Micro Direct Ethanol Fuel Cell (Micro-DEFC) for Applying with the Portable Electronic Devices

Cited by 19 publications

References 5 publications

Enhancement of Ethanol Production in Electrochemical Cell by Saccharomyces cerevisiae (CDBT2) and Wickerhamomyces anomalus (CDBT7)

Enhancement of Ethanol Production in Electrochemical Cell by Saccharomyces cerevisiae (CDBT2) and Wickerhamomyces anomalus (CDBT7)

Exergy Inefficiency: An Indicator for Sustainable Development Analysis

Activity Enhancement of PtIr Catalysts for Complete Ethanol Oxidation Reaction by Tuning C–O Coupling Abilities

Contact Info

Product

Resources

About