Fabrication and preliminary testing of a planar membraneless microchannel fuel cell

Interfacial mass transport in steady three-dimensional flows in microchannels

“…Zero velocity normal to the plane results in an interface across which solute only diffuses; there is no convective transport across this centre plane. The interface acts like the membrane in a coflowing membrane separator (Brody and Yager 1997), and such interfaces act like a 'virtual membrane' in the context of fluid-based fuel cells (Cohen et al 2005, Ferrigno et al 2002.…”

“…Heat and mass transfer to solid-liquid interfaces and across liquid-liquid interfaces are fundamental to heat exchanger design (Acharya et al 1992, 2001, Mokrani et al 1997, Peerhossaini et al 1993, electrochemical systems for analysis and energy production (Cohen et al 2005, Ferrigno et al 2002, Shrivastava et al 2008, separations with membranes (Shrivastava et al 2008) and without membranes (Aref andJones 1989, Brody andYager 1997), fabrication at fluid-fluid interfaces (Kenis et al 1999, and sensors involving interfacial reactions (Foley et al 2008, Golden et al 2007, Kamholz et al 1999, Squires et al 2008, Teles and Fonseca 2008, Vijayendran et al 2003. Many of these systems rely on the suppression of turbulence as a means of controlling fluid flow, whereas others are relegated to laminar flow by other constraints.…”

“…Although many have noted significant increases in rates of transfer with the introduction of chaotic trajectories (Bryden and Brenner 1999, Ganesan et al 1997, Lefevre et al 2003, others (ourselves included) have cautioned against equating increases in mixing efficiency due to chaotic flows with increased rates of transfer (Ganesan et al 1997, Ghosh et al 1998, Kirtland et al 2006. Experimentally, many investigators have harnessed the controllability of laminar flow to their advantage in systems depending on interfacial heat and mass transfer: liquid-liquid extraction (Brody and Yager 1997); homogeneous reaction of initially separate reactant streams , Kamholz et al 1999; microfabrication at fluid-fluid interfaces (Kenis et al 1999 and laminar flowbased fuel cells (Cohen et al 2005, Ferrigno et al 2002. All of these systems, however, suffer some loss of efficiency due to depleted regions near the interfaces at which transfer occurs.…”

Development and characteristics of a membraneless microfluidic fuel cell array

“…There have been still some more generalized scaling-out strategies developed based on multiplexing technologies [26,27]. However, none of these studies does a good job of handling the issue of uniform flow and reactant distributions.…”

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

“…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.…”