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oai:www.ideals.illinois.edu:2142/81006 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Masel, Richard I. Chu, Kuan-Lun 2015-09-25T20:09:11Z 2015-09-25T20:09:11Z 10000-01-01 2007 2007 Most importantly in this work, porous silicon is demonstrated to be a novel proton conducting membrane material for implementation of micro silicon fuel cells. With 5 M formic acid plus 0.5 M sulfuric acid as the fuel, the micro fuel cell based on a p-type porous silicon membrane produces peak power density about 30 mW/cm2 at current density of about 120 mA/cm 2. Another design of micro fuel cells based on an n-type porous silicon membrane for the improvement of the power output is also presented. Micro fuel cells are fabricated using porous silicon membranes with different thickness and different pore morphologies, and their performances are tested. Fuel solutions with different formic acid concentrations are also tested. The fuel cell peak power density reached 94 mW/cm2 at current density level of 314 mA/cm2. Made available in DSpace on 2015-09-25T20:09:11Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3269862.pdf: 6940960 bytes, checksum: d421399500da58e2806f8f6765035bd7 (MD5) Previous issue date: 2007 Embargo set by: Seth Robbins for item 82288 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 135 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007. http://hdl.handle.net/2142/81006 (MiAaPQ)AAI3269862 eng Engineering, Electronics and Electrical Porous Silicon Membrane Based Formic Acid Fuel Cells for Micro Power Generation text Electrical and Computer Engineering Electrical and Computer Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.