1,721,181 research outputs found
Bribery in work on Tindal alleged
No full texttag=1 data=Bribery in work on Tindal alleged
tag=2 data=Scott, Keith
tag=3 data=Canberra Times
tag=8 data=AIR FORCE%CRIME & CRIMINALS
tag=9 data=TINDAL RAAF BASE%AUSTRALIAN CONSTRUCTION SERVICES
tag=32 data=WEST, STEWART
tag=34 data=PRSS
tag=61 data=21
tag=62 data=Apr
tag=63 data=198
Development of direct methanol alkaline fuel cells using anion exchange membranes
No full textResearch into the development of direct methanol alkaline fuel cell (DMAFC) using an anion exchange polymer electrolyte membrane is described. The commercial membrane used had a higher electric resistance, but a lower methanol diffusion coefficient than Nafion® membranes. Fuel cell tests were performed using carbon supported Pt catalyst, and the effect of temperature, methanol concentration, methanol flow rate, air pressure and Pt loading were investigated. It was found that the cell performance improved drastically with a membrane assembly electrode (MEA) which did not include the gas diffusion layer on the anode, because of lower reactant mass transfer resistance. To give suitable cathode performance, humidification of the air and a subtle balance between the air pressure and water transport is required.</p
Microbial electrochemical and fuel cells: fundamentals and applications
No full textMicrobial Electrochemical and Fuel Cells: Fundamentals and Applications contains the most updated information on bio-electrical systems and their ability to drive an electrical current by mimicking bacterial interactions found in nature to produce a small amount of power. One of the most promising features of the microbial fuel cell is its application to generate power from wastewater, and its use in the treatment of water to remove contaminants, making it a very sustainable source of power generation that can feasibly find application in rural areas where providing more conventional sources of power is often difficult. The book explores, in detail, both the technical aspects and applications of this technology, and was written by an international team of experts in the field who provide an introduction to microbial fuel cells that looks at their electrochemical principles and mechanisms, explains the materials that can be used for the various sections of the fuel cells, including cathode and anode materials, and provides key analysis of microbial fuel cell performance looking at their usage in hydrogen production, waste treatment, and sensors, amongst other applications. Includes coverage of the types and principles of electrochemical cells. Provides information on the construction of fuel cells and appropriate materials. Presents the latest on this renewable source of energy and the process for the treatment of waste water.</p
Direct methanol alkaline fuel cell with catalysed metal mesh anodes
No full textPlatinised Ti electrodes were produced by thermal decomposition of H 2PtCl6 onto mesh substrates. Surface properties and morphology of the Pt deposit on Ti mesh were characterised using SEM, EDAX and XRD analysis. A highly dispersed Pt deposit layer was obtained. Direct methanol fuel cell tests with anion exchange membrane electrolyte and platinised Ti mesh anode were carried out and compared to conventional hot-pressed carbon supported Pt catalysts. The platinised Ti mesh anode showed higher catalytic activity than the conventional Pt/C electrode, and gave a stable fuel cell performance.</p
Kawamura (Leslie S.) Scott (Keith) éd Buddhist Thought and Asian Civilization. Essays in Honor of Herbert V. Guenther on his Sixtieth Birthday
No full textAubin Françoise. Kawamura (Leslie S.) Scott (Keith) éd Buddhist Thought and Asian Civilization. Essays in Honor of Herbert V. Guenther on his Sixtieth Birthday. In: Archives de sciences sociales des religions, n°48/2, 1979. pp. 301-302
Kawamura (Leslie S.) Scott (Keith) éd Buddhist Thought and Asian Civilization. Essays in Honor of Herbert V. Guenther on his Sixtieth Birthday
No full textAubin Françoise. Kawamura (Leslie S.) Scott (Keith) éd Buddhist Thought and Asian Civilization. Essays in Honor of Herbert V. Guenther on his Sixtieth Birthday. In: Archives de sciences sociales des religions, n°48/2, 1979. pp. 301-302
A direct glucose alkaline fuel cell using MnO <sub>2</sub>-carbon nanocomposite supported gold catalyst for anode glucose oxidation
No full textGold nanoparticles supported on MnO 2-carbon nanocomposite (Au/MnO 2-C) are synthesised as the catalyst for the anodic oxidation of glucose for use in a direct glucose alkaline fuel cell (DGAFC). Characterisation of the catalyst is carried out using physical and electrochemical methods. It is observed that gold nanoparticles are uniformly dispersed onto the MnO 2-carbon nanocomposite support. Cyclic voltammetry shows that the prepared Au/MnO 2-carbon catalysts exhibit higher electro-catalytic activity for glucose oxidation than that of commercial Pt/C and Au/C catalysts. A maximum power density, at 30 °C, of 1.1 mW cm -2 is obtained using an Au/MnO 2-C anode catalyst in DGAFC, which is higher than that of the commercial Au/C catalyst. The enhanced activity is attributed to a catalytic effect of MnO 2 towards glucose oxidation. MnO 2-C nanocomposite is a promising approach for reducing noble metal catalyst loading in addition to improving the catalytic activity of gold catalyst for glucose oxidation.</p
- …
