Mechanistic understanding of monosaccharide-air flow battery electrochemistry

Scott, Daniel M.; Tsang, Tsz Ho; Chetty, Leticia; Aloi, Sekotilani; Liaw, Bor Yann

doi:10.1016/j.jpowsour.2011.08.082

Cited by 20 publications

(23 citation statements)

References 17 publications

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“…[26][27][28] They can undergo one-electron reduction to produce intensely colored free radicals and act as good electron acceptors in charge-transfer (CT) complexes, redox mediators, molecular electronics and electrochromics, and other electrochemical applications. [29][30][31][32][33][34][35] Besides, due to their well-separated intramolecular charges, such kinds of molecules are strongly polarized and the electric field gradient can be found on their molecular surface. Despite their extensive applications as electrochromic and photochromic materials and as active components in molecular electronics, experimental studies on the framework materials with bipyridinium derivatives as building blocks are still less explored.…”

Section: Introductionmentioning

confidence: 99%

Functional metal–bipyridinium frameworks: self-assembly and applications

2015

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Metal-organic frameworks (MOFs) as newly emerged materials have experienced rapid development in the last few years. The modular synthesis procedure allows integrating functional groups in their frameworks with varied applications. Due to the easy modification of the backbone and highly charged characteristics with interesting electron-active properties, the use of bipyridinium derivatives as synthons for the fabrication of functional metal-bipyridinium frameworks (MBPFs) has attracted increased interest over the past few years. Various bipyridinium-bearing ligands have been designed for the construction of functional MBPFs, and some of them present intriguing properties for potential applications including photochromism and photoswitching, sensing, molecule adsorption and separation. This perspective aims to highlight the recent progress in this area, and seeks to uncover promising ideas that will underscore future advancements at both the fundamental and applied levels.

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Section: Introductionmentioning

confidence: 99%

Functional metal–bipyridinium frameworks: self-assembly and applications

2015

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“…A recent example of an electrochemical cell that takes advantage of the reduction of an organic mediator dye by the cells fuel, a monosaccharide, and then is itself oxidized at a current collecting material, was previously presented by the following cited labs [17,18,20,21]. This glucose/fructose fuel cell functions under alkaline conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, without a membrane there is less of an ohmic resistance in the cell. This fuel cell runs on oxygen from the air and harvests 100% of the electrons available in the oxidation of glucose to gluconic acid (2 electrons per molecule of glucose) [17,20,21]. Although not the optimal number of electrons per glucose molecule, when comparing the energy losses associated with converting monosaccharides to ethanol for combustive power production through fermentation, the columbic efficiency of the above described cell is very competitive [23].…”

Section: Introductionmentioning

confidence: 99%

Temperature dependence of an abiotic glucose/air alkaline fuel cell

Orton

Scott

2015

Journal of Power Sources

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“…[2][3][4][5][6] The reaction mechanism of SAAB is discussed in detail by Scott et al 4 The SAAB uses inexpensive electrode materials in concentrated potassium or sodium hydroxide solution, in one compartment 2,4,5 without using expensive separators (e.g. Nafion) or (bio-)catalysts.…”

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confidence: 99%

Communication—Electrochemical Power Generation from Culled Papaya Fruits

Provera

Han

Liaw

et al. 2016

J. Electrochem. Soc.

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Low cost electric power generation using raw juice from culled papaya or fruit waste as feedstock was achieved in a sugar-air alkaline battery (SAAB) with about 37% coulombic efficiency at 0.7-0.8 mW cm -2 near peak power density. Such fruit waste, juice-based electrochemical energy could be poised as sustainable distributed energy resource for remote or underdeveloped regions that need cheap electricity without complicated infrastructure. © The Author(s) 2016. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.0051608jes] All rights reserved.Manuscript submitted February 29, 2016; revised manuscript received April 12, 2016. Published May 11, 2016 More than one billion people still have no access to electricity, as conventional grid-connected utility is either unavailable or cost prohibitive in many remote or underdeveloped areas globally.1 In these areas, it is extremely challenging to develop a feasible solution to provide electricity, since the energy feedstock has to be easy to obtain, store and distribute locally. Also, the system has to be easy to operate and maintain without training, advanced skill set, and infrastructure.Abiotic reducing sugar-air alkaline battery (SAAB) or fuel cell (SAFC) systems ( Figure 1) recently have been shown capable of harnessing electric power from partial oxidation of various reducing sugars using strong base solutions and mediator dyes.2-6 The reaction mechanism of SAAB is discussed in detail by Scott et al. 4 The SAAB uses inexpensive electrode materials in concentrated potassium or sodium hydroxide solution, in one compartment 2,4,5 without using expensive separators (e.g. Nafion) or (bio-)catalysts. Methyl viologen (MV) and indigo carmine (IC) are among the best mediators for charge transfer. 5For practical use, cheap feedstock is essential. A significant quantity of unmarketable culled papaya and processing waste are available in Hawaii and many other regions around the globe, especially in developing economies. Instead of subjecting the fruit waste to microbial fermentation to make biogas, ethanol, or lipids as biofuels, they can serve as cheap feedstock for SAAB to generate electricity. Microbial fermentation of papaya fruit wastes for biofuels or bioenergy requires substantial infrastructure and water-and energy-demanding processing. Furthermore, fermentation is sensitive to environmental factors (e.g. temperature and humidity) and impurities (e.g. inhibitors in fruit wastes could impair ethanol or lipid production). The SAAB, in contrast, is very forgiving in the quality of sugar feedstock, and hence the cost (i.e. $ kg -1 for feedstock and $ kWh -1 for electricity) and complexity of the energy harvesting process could be drastically reduced. Papaya has high content of glucose and fructose, 7 and polysaccharides that cou...

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Mechanistic understanding of monosaccharide-air flow battery electrochemistry

Cited by 20 publications

References 17 publications

Functional metal–bipyridinium frameworks: self-assembly and applications

Functional metal–bipyridinium frameworks: self-assembly and applications

Temperature dependence of an abiotic glucose/air alkaline fuel cell

Communication—Electrochemical Power Generation from Culled Papaya Fruits

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