fuel cell – Page 4 – TechConnect Briefs

A Novel Architecture for Micro Fuel Cells

Moghaddam S., Pengwang E., Lin K., Masel R.I., Shannon M.A., UIUC, US

We report, for the first time, development of a fully integrated millimeter-scale (331 mm3) fuel cell-based power generator with a completely passive control system. Fabrication of this unique power source was enabled through development of [...]

Nanoengineering of a New Generation Proton Exchange Membrane for Micro Fuel Cells

Moghaddam S., Masel R., Shannon M., University of Illinois at Urbana-Champaign, US

We report development of the first viable silicon-based proton exchange membrane (PEM). This was achieved through self-assembly of 3-mercaptopropyl-trimethoxysilane (MPTMS) molecules inside extremely high aspect ratio torturous silicon nanopores. This development can greatly benefit the [...]

A Novel Anode Electrode for Direct Borohydride Fuel Cell

Kim K-J, Bernas R., Miley G.H., Luo N., Yang X., University of Illinois, US

As part of the development of a portable fuel cell using direct sodium Borohydride fuel, deposition methods of the catalysis on the diffusion layer have been studied. In earlier studies catalyst deposition onto a porous [...]

Energy-efficient electrochemical CO2 capture from the atmosphere

Eisaman M.D., Schwartz D.E., Amic S., Larner D., Zesch J., Littau K., Palo Alto Research Center, US

In this contribution, we report on the experimental demonstration of a continuously operating modified fuel cell capable of capturing CO2 at atmospheric concentrations with record efficiency. The atmosphere provides O2 and CO2 at the cathode, [...]

A Novel Architecture for Micro Fuel Cells

Moghaddam S., Pengwang E., Lin K., Masel R.I., Shannon M.A., UIUC, US

We report, for the first time, development of a fully integrated millimeter-scale (331 mm3) fuel cell-based power generator with a completely passive control system. Fabrication of this unique power source was enabled through development of [...]

Improving Water Management in Fuel Cell Flow Channels via Oscillation of Water Droplets

Schultz R., Diebel J., Allen J., Michigan Technological University, US

To achieve maximum efficiency and reliability in a PEM fuel cell, a balance between keeping the membrane from becoming too dry or too wet must be monitored carefully. At present, product water is moved through [...]

Carbon Aerogel -Supported Pt with Applications in Fuel-Cells

Cotet L.C., Andronie A., Stamatin I., Stamatin I.D., Stamatin I., Stamatin I.D., Cosoveanu V., Danciu V., Babes-Bolyai University, RO

Carbon–supported Pt materials still remain as reference electrocatalysts for the reactions in fuel cells [1]. Related to cost–performances carbon aerogel-supported Pt joins the catalytic properties of the Pt with attractive structural properties of the aerogels, [...]

Study on the Cathode Materials for Achieving IT-SOFC with Proton Conductor

Asamoto M., Miyake S., Yonei Y., Yamaura H., Yahiro H., Ehime University, JP

Proton conductor is the potential candidate as an electrolyte for an intermediate temperature-solid oxide fuel cell (IT-SOFC). However, a major issue with the reduced operating temperature is the decrease in the catalytic activity of the [...]

Effects of Spin Coating Catalysts on Micro-Fuel Cells Efficiency

Lung T., Reissman T., Kirby B., Garcia E., Cornell University, US

Using spin coating as the catalyst application technique in order to receive an even distribution on the porous silicon PEM. With even distribution, resistivity is more consistent, which produces a better power output from the [...]

In-plane and through-plane electrochemical conductivity and fuel cell performance of thin-film YSZ electrolytes

Johnson A.C., Ramanathan S., Harvard University, US

Submicron electrolyte films are a key component of intermediate temperature solid oxide fuel cells. Several groups have reported size-dependent in-plane ionic conductivity in thin films of yttria-stabilized zirconia (YSZ) and gadolinia-doped ceria. Here we report [...]