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dc.contributor.authorXu, Pan
dc.contributor.authorZhang, Jing
dc.contributor.authorJiang, Gaopeng
dc.contributor.authorHassan, Fathy Mohamed
dc.contributor.authorChoi, Ja-Yeon
dc.contributor.authorFu, Xiaogang
dc.contributor.authorZamani, Pouyan
dc.contributor.authorYang, Lijun
dc.contributor.authorBanham, Dustin
dc.contributor.authorYe, Siyu
dc.contributor.authorChen, Zhongwei 13:49:52 (GMT) 13:49:52 (GMT)
dc.descriptionThe final publication is available at Elsevier via © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.description.abstractTransition metals hybridized to heteroatom doped carbon material can be regarded as the most promising non-noble candidate for boosting the sluggish kinetics of oxygen reduction reaction (ORR). However, it has always been a challenge to vastly boost the activity, and simultaneously retain a favorable structure from the supporting material. Herein, we prepared a high surface area hollow spherical carbon as a supporting material, and employed aminothiophenol (ATI) and poly-aminothiophenol (PATI) as heteroatom precursors to synthesize nitrogen and sulfur co-doped catalysts, i.e. HCS-A and HCS-PA, respectively. The two catalysts possessed chemically similar surface composition, and nearly identical chemical states for each element. However, only HCS-A was able to vastly inherit both morphological advantage and high surface area from the carbon support. In further half-cell electrochemical testing, HCS-A performed better ORR activities and higher selectivity toward 4 electron pathway than HCS-PA in both acidic and alkaline media. Moreover, HCS-A was proven to have excellent durability in half-cell testing, methanol tolerance as well as outstanding peak power density in both fuel cells and zinc-air batteries. This work not only indicates the promising performances of HCS-A, but more importantly offers a new viewpoint on the selection of heteroatom precursor to retain a favorable structure.en
dc.description.sponsorshipUniversity of Waterlooen
dc.description.sponsorshipWaterloo Institute for Nanotechnologyen
dc.description.sponsorshipBallard Power Systems
dc.description.sponsorshipCatalysis Research for Polymer Electrolyte Fuel Cells (CaRPE-FC), Simon Fraser University
dc.description.sponsorshipNatural Sciences and Engineering Research Council || Automotive Partnership Canada Grant no. APCPJ 417858-11
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjecthollow sphereen
dc.subjectoxygen reductionen
dc.subjectnon-precious catalysten
dc.subjectelectron transfer numberen
dc.subjectPEM fuel cellen
dc.subjectzinc-air batteryen
dc.titleEmbellished hollow spherical catalyst boosting activity and durability for oxygen reduction reactionen
dcterms.bibliographicCitationXu, P., Zhang, J., Jiang, G., Hassan, F., Choi, J.-Y., Fu, X., … Chen, Z. (2018). Embellished hollow spherical catalyst boosting activity and durability for oxygen reduction reaction. Nano Energy, 51, 745–753.
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Chemical Engineeringen

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