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dc.contributor.authorLing, Yihan
dc.contributor.authorWang, Zhenbin
dc.contributor.authorWang, Zhiquan
dc.contributor.authorPeng, Ranran
dc.contributor.authorBin, Lin
dc.contributor.authorYu, Weili
dc.contributor.authorIsimjan, Tayirjan T.
dc.contributor.authorLu, Yalin
dc.date.accessioned2021-07-05T06:53:15Z
dc.date.available2021-07-05T06:53:15Z
dc.date.issued2015-03-18
dc.date.submitted2015-01-12
dc.identifier.citationLing, Y., Wang, Z., Wang, Z., Peng, R., Lin, B., Yu, W., … Lu, Y. (2015). A robust carbon tolerant anode for solid oxide fuel cells. Science China Materials, 58(3), 204–212. doi:10.1007/s40843-015-0033-6
dc.identifier.issn2199-4501
dc.identifier.issn2095-8226
dc.identifier.doi10.1007/s40843-015-0033-6
dc.identifier.urihttp://hdl.handle.net/10754/669956
dc.description.abstractSolid oxide fuel cells (SOFCs) have been attracting remarkable attention as one of the most promising green energy conversion devices in the recent years. However, a high susceptibility of commonly used Ni-based anodes to carbon coking is a major challenge to the successful commercialization of SOFCs. In this study, a robust anode with Ni/TiO2−δ nano-network interfaces is reported, for low-cost SOFCs working at intermediate temperatures. This anode demonstrates an acceptable power density, and good stability with humidified (3% H2O) methane. X-ray diffraction (XRD) Rietveld refinement, X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and high resolution transmission electron microscopy (HRTEM) images reveal that the Ni/TiO2−δ network-composite anode forms from the in-situ reductive decomposition of NiTiO3. Numerous Ni/TiO2−δ interfaces that facilitate the water adsorption and the water-mediated carbon-removing reactions form during this decomposition process. Density functional theory calculations predict that at the Ni/TiO2−δ interfaces, the dissociated OH from H2O (adsorbed on TiO2−δ) reacts with C (locating on Ni) to produce CO and H species, which are then electrochemically oxidized (combined with O2−) to CO2 and H2O at the triple-phase boundaries of the anode.
dc.description.sponsorshipThis work was supported by the National Basic Research Program of China (2012CB922001), and the National Natural Science Foundation of China (51472228 and 511021077). The authors acknowledge the Supercomputing Center of the University of Science and Technology of China (WK2060140019), Shanghai Supercomputer Center, and the National Supercomputing Center in Tianjin, for providing computational resources.
dc.publisherSpringer Science and Business Media LLC
dc.relation.urlhttp://link.springer.com/10.1007/s40843-015-0033-6
dc.rightsArchived with thanks to SCIENCE CHINA-MATERIALS
dc.titleA robust carbon tolerant anode for solid oxide fuel cells
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalScience China Materials
dc.identifier.wosutWOS:000364477200005
dc.eprint.versionPost-print
dc.contributor.institutionCAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
dc.contributor.institutionSynergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China.
dc.contributor.institutionNational Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.
dc.contributor.institutionNational Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China.
dc.identifier.volume58
dc.identifier.issue3
dc.identifier.pages204-212
kaust.personBin, Lin
kaust.personYu, Weili
kaust.personIsimjan, Tayirjan T.
dc.date.accepted2015-02-11


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