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Lookup NU author(s): Professor Paul ChristensenORCiD, Professor Wen-Feng Lin, Dr Henriette Christensen, Ajchara Imkum, Jia Jin, Dr Guohua Li, Dr Clive Dyson
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The electrochemical generation of ozone by Ni/Sb-SnO2 anodes immersed in 0.5M H2SO4 was assessed in both flow and recycle systems using the same electrochemical cell. The anodes were found to exhibit current efficiencies of up to 50% for ozone generation under flow conditions at room temperature, with an optimum mole ratio in the precursor solutions of ca. 500:8:3 Sn:Sb:Ni and optimum cell voltage of 2.7V. A comparison of the data obtained under flow and recycle conditions suggests that the presence of ozone in the anolyte inhibits its formation. The minimum electrical energy cost achieved, of 18 kWh kg(-1) compares favorably with estimated costs for Cold Corona Discharge generally reported in the literature, especially when the very significant advantages of electrochemical ozone generation are taken into account.
Author(s): Christensen PA, Lin WF, Christensen H, Imkum A, Jin JM, Li G, Dyson CM
Publication type: Article
Publication status: Published
Journal: Ozone: Science and Engineering
Year: 2009
Volume: 31
Issue: 4
Pages: 287-293
Print publication date: 01/01/2009
ISSN (print): 0191-9512
ISSN (electronic): 1547-6545
Publisher: Taylor & Francis Inc.
URL: http://dx.doi.org/10.1080/01919510903039309
DOI: 10.1080/01919510903039309
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