On-Chip Fuel Cell: Micro Direct Methanol Fuel Cell of an Air-Breathing, Membraneless, and Monolithic Design

Tominaka, Satoshi; Ohta, Sousuke; Obata, Hiroyuki; Momma, Toshiyuki; Osaka, Tetsuya

doi:10.1021/ja8024214

Cited by 109 publications

(101 citation statements)

References 25 publications

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“…Direct methanol fuel cells (DMFCs) are promising power sources for mobile and portable applications due to their high energy density, low pollutant emission, simple system design, and abundant fuel sources [1][2][3]. The bottlenecks restricting the commercialization of DMFCs are Pt-based catalysts [4] and perflurosulfonic acid membranes [5] which are too expensive to be used in large quantities.…”

Section: Introductionmentioning

confidence: 99%

On the proton conductivity of Nafion–Faujasite composite membranes for low temperature direct methanol fuel cells

Zhang

Désilets

Felice

et al. 2011

Journal of Power Sources

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a b s t r a c tAlthough zeolites are introduced to decrease methanol crossover of Nafion membranes for direct methanol fuel cells (DMFCs), little is known about the effect of their intrinsic properties and the interaction with the ionomer. In this work, Nafion-Faujasite composite membranes prepared by solution casting were characterized by extensive physicochemical and electrochemical techniques. Faujasite was found to undergo severe dealumination during the membrane activation, but its structure remained intact. The zeolite interacts with Nafion probably through hydrogen bonding between Si-OH and SO 3 H groups, which combined with the increase of the water uptake and the water mobility, and the addition of a less conductive phase (the zeolite) leads to an optimum proton conductivity between 0.98 and 2 wt% of zeolite. Hot pressing the membranes before their assembling with the electrodes enhanced the DMFC performance by reducing the methanol crossover and the serial resistance.

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Section: Introductionmentioning

confidence: 99%

On the proton conductivity of Nafion–Faujasite composite membranes for low temperature direct methanol fuel cells

Zhang

Désilets

Felice

et al. 2011

Journal of Power Sources

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“…Enzymatic biofuel cells (BFCs) that utilize enzymes as electrocatalysts instead of metals have attracted attention as ubiquitous sustainable power devices that can generate electricity directly from the blood or bodily fluids [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. A characteristic feature of BFCs is their ability to generate power using various kinds of fuels, such as glucose, lipids, and hydrogen.…”

Section: Introductionmentioning

confidence: 99%

A Glucose Biofuel Cell Equipped in the Fluid Reservoir of a Polyimide Diaphragm Micropump

Ishida

Fukushi

Nishioka

2015

J. Photopol. Sci. Technol.

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We fabricated a micropump with a polyimide (PI) diaphragm (53 μm thick, 7 mm diameter) on a silicon chip using microfabrication processes, and a glucose biofuel cell was inserted into the fluid chamber of the micropump. The biofuel cell was fabricated on another PI film, with glucose oxidase immobilized on its porous carbon anode and bilirubin oxidase immobilized on the porous carbon cathode. Each semicircular electrode area was 14.1 mm 2 with a radius of 3 mm, and the gap between the anode and cathode was 1 mm.The device generated electricity by feeding an aqueous solution of glucose directly onto the electrodes in the micropump chamber. The maximum generated power, 0.076 μW at 98 mV, corresponding to a power density of 0.556 μW/cm 2 , was realized when a 100 mM glucose solution was introduced under diaphragm pressures alternating between 0 and 30 kPa at a pumping frequency of 3 Hz. A longer power generation lifetime was observed under fuel flow driven by micropump operation.

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“…Micro fuel cell is widely studied due to the growth of micro electromechanical system (MEMS) devices [1][2][3]. It is required to minimize the fuel cell components in order to integrate to the devices.…”

Section: Introductionmentioning

confidence: 99%

“…It is required to minimize the fuel cell components in order to integrate to the devices. Several groups have made micro fuel cells integrated on various substrates as a chip scale power source [2][3][4][5]. The authors have reported a fuel cell formed on a PFT film substrate [6].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Durability of Single Chip Micro Direct Methanol Fuel Cell (SC-^|^mu;DMFC) by Photolithography Process

Sakurai

Tanaka

Ohata

et al. 2013

J. Photopol. Sci. Technol.

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Single chip micro direct methanol fuel cell (SC-µDMFC) is attractive as a chip scale power source for micro electromechanical system (MEMS) devices. A multilayer structure is commonly employed for the fuel cell. The durability of SC-µDMFC should be mostly affected by interface energy. In this study, SC-µDMFC is fabricated by employing a photoresist / Pt electrode / PFSA film multilayer structure. The fabrication of SC-µDMFC (chip size of 2.0mm×2.0mm ×500µm) is succeeded without any film peeling. Consequently, maximum output power of 0.07µW is obtained. The film peeling of SC-µDMFC is also analyzed by the interface energy method. As a result, several layers of weak adhesion are predicted. However, the film peeling could not occur by the contribution of the other mechanical adhesion factors. The experimental results indicate the durability of the SC-µDMFC.

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On-Chip Fuel Cell: Micro Direct Methanol Fuel Cell of an Air-Breathing, Membraneless, and Monolithic Design

Cited by 109 publications

References 25 publications

On the proton conductivity of Nafion–Faujasite composite membranes for low temperature direct methanol fuel cells

On the proton conductivity of Nafion–Faujasite composite membranes for low temperature direct methanol fuel cells

A Glucose Biofuel Cell Equipped in the Fluid Reservoir of a Polyimide Diaphragm Micropump

Fabrication and Durability of Single Chip Micro Direct Methanol Fuel Cell (SC-^|^mu;DMFC) by Photolithography Process

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