@article{mcclure_jiang_chu_fedkiw_2014, title={Oxygen electroreduction on Fe- or Co-containing carbon fibers}, volume={79}, ISSN={["1873-3891"]}, DOI={10.1016/j.carbon.2014.08.005}, abstractNote={Non-noble metal-containing electrocatalysts were prepared by an electrospinning method and evaluated as oxygen reduction electrocatalysts. Fe- or Co-containing carbon fibers were prepared by pyrolyzing electrospun polyacrylonitrile (PAN) fibers containing the respective metal precursor and are denoted Fe-PAN and Co-PAN, respectively. The Fe- or Co-PAN carbon fibers were acid-leached and subjected to a second pyrolysis, whereby the final fibers were found to be uniform in diameter with roughened surfaces. Scanning transmission electron microscopy equipped with energy dispersive spectroscopy area-mapping identified Fe or Co nanoparticulates throughout the fiber with a distribution of particulate sizes. X-ray diffractograms (XRD) revealed amorphous Fe-PAN and Co-PAN carbon fibers with no discernible Fe or Co phases, whereas high-resolution XPS scans show a range of potential Fe or Co species. Moreover, the high-resolution X-ray photoelectron spectroscopy (XPS) and peak-fitting analysis provided chemical species information for the C1s, N1s, Fe2p and Co2p regions. The physical characterizations highlighted potential beneficial components for the electrocatalysts that made their use as oxygen reduction reaction (ORR) effective. Rotating disk and ring-disk electrode experiments determined that the best Fe-PAN sample out-performed the best Co-PAN sample and even performed well in comparison to a commercial Pt/C electrocatalyst for the ORR in a high pH media.}, journal={CARBON}, author={McClure, Joshua P. and Jiang, Rongzhong and Chu, Deryn and Fedkiw, Peter S.}, year={2014}, month={Nov}, pages={457–469} } @article{mcclure_devine_jiang_chu_cuomo_parsons_fedkiw_2013, title={Oxygen Electroreduction on Ti- and Fe-Containing Carbon Fibers}, volume={160}, ISSN={["1945-7111"]}, DOI={10.1149/2.029308jes}, number={8}, journal={JOURNAL OF THE ELECTROCHEMICAL SOCIETY}, author={McClure, Joshua P. and Devine, Christina K. and Jiang, Rongzhong and Chu, Deryn and Cuomo, Jerome J. and Parsons, Gregory N. and Fedkiw, Peter S.}, year={2013}, pages={F769–F778} } @article{jiang_tran_mcclure_chu_2012, title={Heat-treated hemin supported on graphene nanoplatelets for the oxygen reduction reaction}, volume={19}, journal={Electrochemistry Communications}, author={Jiang, R. Z. and Tran, D. T. and McClure, J. and Chu, D.}, year={2012}, pages={73–76} } @article{jiang_tran_mcclure_chu_2012, title={Increasing the electrochemically available active sites for heat-treated hemin catalysts supported on carbon black}, volume={75}, journal={Electrochimica Acta}, author={Jiang, R. Z. and Tran, D. T. and McClure, J. P. and Chu, D.}, year={2012}, pages={185–190} } @article{mcclure_thornton_jiang_chu_cuomo_fedkiw_2012, title={Oxygen Reduction on Metal-Free Nitrogen-Doped Carbon Nanowall Electrodes}, volume={159}, ISSN={["1945-7111"]}, DOI={10.1149/2.056211jes}, number={11}, journal={JOURNAL OF THE ELECTROCHEMICAL SOCIETY}, author={McClure, Joshua P. and Thornton, Jackson D. and Jiang, Rongzhong and Chu, Deryn and Cuomo, Jerome J. and Fedkiw, Peter S.}, year={2012}, pages={F733–F742} } @article{wang_mcclure_fedkiw_2012, title={Transport properties of proton- and hydroxide-exchange membranes for fuel cells}, volume={79}, ISSN={["0013-4686"]}, DOI={10.1016/j.electacta.2012.06.098}, abstractNote={Abstract The electro-osmotic drag coefficients (ξ) of water-vapor equilibrated Nafion® 117, a proton conductor, and Tokuyama® A201, a hydroxide conductor were determined from the steady-state voltage of a water concentration cell. The ξ values are reported, along with water uptake, ion-exchange capacity, ionic conductivity, and methanol permeability of these membranes. The room-temperature ξ of Nafion® 117 and Tokuyama® A201 is 0.99 (±0.07) and 0.61 (±0.12), respectively, and is relatively independent of water content over the relative humidity range of 14–96%. The time to steady potential in the water concentration cell was longer for the Tokuyama® A201 membrane than the Nafion® 117 membrane, which is tentatively attributed to the lower mobility of hydrated hydroxide (or carbonate from absorption of adventitious carbon dioxide) in comparison to hydronium ion.}, journal={ELECTROCHIMICA ACTA}, author={Wang, Xuhai and McClure, Joshua P. and Fedkiw, Peter S.}, year={2012}, month={Sep}, pages={126–132} }