Presentation Title

Power Production through Paper Microfluidics

Start Date

November 2016

End Date

November 2016

Location

HUB 367

Type of Presentation

Oral Talk

Abstract

Paper microfluidics are a cost-effective alternative means to produce power in the milliwatt range, which may be of interest for a variety of point-of-care diagnostics devices and electrochemical sensors. Paper microfluidic cells utilize co-laminar flow to maintain separation between fuel and oxidant streams in place of a polymer membrane. It also requires minimal amounts of fuel and oxidant to function and are economical and portable. Paper microfluidic cells takes advantage of the capillary action of paper to maintain laminar flow without the requirement of external pumps. These special characteristics that paper microfluidic cells possess allows for it to be a good alternative energy source. Our paper microfluidic fuel cell produced a maximum power density of 2mW/mg Pd with 30% hydrogen peroxide and 1 mW/mg Pd using 3% hydrogen peroxide. In both cases, 5 M potassium formate was used as the fuel. A maximum power density of 2.5 mW/mg Pd was produced with 10 M potassium formate. Paper Cu-Zn galvanic cells generated a maximum power density of 0.25 mW/mg base metal. Hybrid cells using potassium formate and potassium permanganate produced a power density of 3 mW/mg Pd. Hybrid cells using formate oxidation and silver ion reduction gave significantly higher power density, 18 mW/mg Pd.

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Nov 12th, 11:45 AM Nov 12th, 12:00 PM

Power Production through Paper Microfluidics

HUB 367

Paper microfluidics are a cost-effective alternative means to produce power in the milliwatt range, which may be of interest for a variety of point-of-care diagnostics devices and electrochemical sensors. Paper microfluidic cells utilize co-laminar flow to maintain separation between fuel and oxidant streams in place of a polymer membrane. It also requires minimal amounts of fuel and oxidant to function and are economical and portable. Paper microfluidic cells takes advantage of the capillary action of paper to maintain laminar flow without the requirement of external pumps. These special characteristics that paper microfluidic cells possess allows for it to be a good alternative energy source. Our paper microfluidic fuel cell produced a maximum power density of 2mW/mg Pd with 30% hydrogen peroxide and 1 mW/mg Pd using 3% hydrogen peroxide. In both cases, 5 M potassium formate was used as the fuel. A maximum power density of 2.5 mW/mg Pd was produced with 10 M potassium formate. Paper Cu-Zn galvanic cells generated a maximum power density of 0.25 mW/mg base metal. Hybrid cells using potassium formate and potassium permanganate produced a power density of 3 mW/mg Pd. Hybrid cells using formate oxidation and silver ion reduction gave significantly higher power density, 18 mW/mg Pd.