Development of porous silicon based direct methanol fuel cells with nitric acid as liquid oxidant for portable applications

作者:Cross Tsali*; Reiman Derek; D'Couto Chris
来源:Wiley Interdisciplinary Reviews: Energy and Environment , 2015, 4(2): 189-195.
DOI:10.1002/wene.127

摘要

Energy intensive applications for long running, portable power (0-200 W) military, first-responder, and consumer electronics applications have driven the need for development of alternative energy sources such as direct methanol fuel cells (DMFC's). These methanol fuel cells can serve a large range of applications from portable applications for consumer, industrial and military applications, to distributed energy generation and storage. A new and unique approach to DMFC design has been developed by Neah Power Systems that uses a porous silicon, catalyst-supporting electrode structure and circulating liquid fuel, electrolyte, and oxidant. Neah Power's silicon-based architecture and use of liquid electrolyte creates a three dimensional reaction zone that is able to generate industry leading power densities of greater than 180 mW/cm(2). Neah Power has demonstrated a portable, DMFC prototype from their ground-breaking porous silicon-based technology. The versatility of the architecture has been proven by operating the fuel cell using a variety of liquid and gaseous oxidants, as well as methanol and formic acid-based fuels. This silicon-based design can be manufactured using standard semiconductor processing techniques, and has the potential to deliver low-cost, portable power systems exhibiting high energy density and reliable operation in a broad range of environmental conditions.

  • 出版日期2015-4