2008
DOI: 10.1016/j.jpowsour.2008.04.017
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Development of tellurium-modified carbon catalysts for oxygen reduction reaction in PEM fuel cells

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Cited by 30 publications
(20 citation statements)
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“…Furthermore, the low peroxide for- mation ͑Ͻ2%, not shown here͒ implied that the Pt/SnO 2 catalyst was highly selective for the ORR via the four-electron process. 29 The stability from CV measurement.-The durability of the Pt/SnO 2 catalyst was characterized for up to 1600 cycles in a N 2 -saturated 0.5 M H 2 SO 4 solution at room temperature by voltage cycling at higher potentials and compared with the Pt/C catalyst. A considerable corrosion of carbon supports, associated with a decrease in the catalyst layer thickness due to carbon electro-oxidation and with aggregation and growth of Pt nanoparticles at high potentials approaching 1.3 V, has been reported.…”
Section: Resultsmentioning
confidence: 99%
“…Furthermore, the low peroxide for- mation ͑Ͻ2%, not shown here͒ implied that the Pt/SnO 2 catalyst was highly selective for the ORR via the four-electron process. 29 The stability from CV measurement.-The durability of the Pt/SnO 2 catalyst was characterized for up to 1600 cycles in a N 2 -saturated 0.5 M H 2 SO 4 solution at room temperature by voltage cycling at higher potentials and compared with the Pt/C catalyst. A considerable corrosion of carbon supports, associated with a decrease in the catalyst layer thickness due to carbon electro-oxidation and with aggregation and growth of Pt nanoparticles at high potentials approaching 1.3 V, has been reported.…”
Section: Resultsmentioning
confidence: 99%
“…[17] Meanwhile, the potential cycling could rearrange surface Pt and Pd atoms owing to the dissolution of neighboring Te atoms and activate the surface sites. [18] The peak between 0.6-0.9 V in the first cycle indicated the dissolution of Te atoms from the surface of the Pt 23 Pd 21 Te 56 NWs in the acidic environment, [19] thereby inducing a PtPdenriched surface of the NWs and further improving electron conduction between the surface sites. The intensity of the dissolution peaks of Te atoms decreased in the following cycling.…”
mentioning
confidence: 99%
“…6 shows the cyclic voltammograms of FeTPP/C-700 and FeTPP/TiO 2 /C-700 in Ar-saturated 0.5 M H 2 SO 4 . For FeTPP/C-700, a pair of peaks at 0.6-0.8 V is attributed to the quinone/hydroquinone couple [41][42][43]. An anodic peak appears at about 0.38 V during the first cycle in the cathodic direction and disappears in the second cycle, which is ascribed to the dissolution of remaining trace amount of metallic Fe on the surface of FeTPP/C-700.…”
Section: Electrocatalytic Properties Of Fetpp/tio 2 /Cmentioning
confidence: 99%