RuxNb1-xO2 catalyst for the oxygen evolution reaction in proton exchange membrane water electrolysers

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dc.contributor.authorPuthiyapura, Vinod Kumar
dc.contributor.authorPasupathi, Sivakumar
dc.contributor.authorBasu, Suddhasatwa
dc.contributor.authorWu, Xu
dc.contributor.authorSu, Huaneng
dc.contributor.authorVaragunapandiyan, N.
dc.contributor.authorPollet, Bruno G.
dc.contributor.authorScott, Keith
dc.date.accessioned2018-01-24T11:24:01Z
dc.date.available2018-01-24T11:24:01Z
dc.date.issued2013
dc.description.abstractBimetallic catalyst system of ruthenium oxide (RuO2) and niobium oxide (Nb2O5) was prepared using the Adams method and the hydrolysis method. Physical and electrochemical characterizations of the catalysts were studied using X-ray diffraction (XRD), Scanning electron microscopy (SEM), cyclic voltammogram (CV) and polarization measurements. Nb2O5 addition to RuO2 was found to increase the stability of RuO2. In Adams method the sodium nitrate was found to be forming complex with Nb2O5 at high temperature reaction. This makes Adams method unsuitable for the synthesis of RuO2eNb2O5 bimetallic system. Hydrolysis method on other hand does not have this problem. But a proper mixture of two oxides was not obtained in hydrolysis method. A lower crystallite size for bimetallic system was obtained with Adams method compared to hydrolysis method. RuO2 prepared by Adams method had higher activity compared to the hydrolysis counterpart in electrolyzer operation with nafion membrane. A cell voltage of 1.62 V was obtained with RuO2 (A) at 1 A/cm2. A higher stability for Ru0.8Nb0.2O2(A) compared to RuO2en_US
dc.description.accreditationWeb of Science
dc.identifier.citationPuthiyapura, V.K. et al. (2013). RuxNb1-xO2 catalyst for the oxygen evolution reaction in proton exchange membrane water electrolysers. International Journal of hydrogen Energy, 38: 8605 – 8616.en_US
dc.identifier.issn0360-3199
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijhydene.2013.04.100
dc.identifier.urihttp://hdl.handle.net/10566/3416
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherElsevieren_US
dc.rightsThis is the author-version of the article published online at: http://dx.doi.org/10.1016/j.ijhydene.2013.04.100
dc.status.ispeerreviewedTRUE
dc.subjectOxygen evolution reactionen_US
dc.subjectPEM-water electrolysisen_US
dc.subjectRuthenium dioxideen_US
dc.subjectNiobium pentoxideen_US
dc.subjectHydrogen generationen_US
dc.titleRuxNb1-xO2 catalyst for the oxygen evolution reaction in proton exchange membrane water electrolysersen_US
dc.typeArticleen_US

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