Enhanced oxygen reduction reaction stability on platinum nanoparticles photo-deposited onto oxide-carbon composites

Estudillo‐Wong, Luis Alberto; Luo, Yun; Díaz-Real, Jesús Adrián; Alonso-Vante, Nicolás

doi:10.1016/j.apcatb.2016.01.030

Cited by 53 publications

(39 citation statements)

References 51 publications

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“…In addition, oxide-carbon composites are good candidates as catalytic center supports [194,[196][197][198]210,247]. Our group reported Pt NPs supported by TiO 2 -C, and Y doped TiO 2 -C [194].…”

Section: Oxide and Oxide-carbon Compositesmentioning

confidence: 87%

“…Our group reported Pt NPs supported by TiO 2 -C, and Y doped TiO 2 -C [194]. It was found that TiO 2 became more conducting after doping with Yttrium (Y:TiO 2 -C).…”

Section: Oxide and Oxide-carbon Compositesmentioning

confidence: 98%

“…The semi-conducting oxides, such as TiO 2 , doped-TiO 2 and doped-SnO 2 , have been reported as support for catalytic centers [187][188][189][190][191][192][193]. The conductivity of oxides can be improved by synthesizing oxide/carbon composites [194]. The supports of this kind of composite materials are widely used for Pt or other catalytic centers [194][195][196][197][198].…”

Section: Oxygen Reduction Reaction-orr and Carbon Supportsmentioning

confidence: 99%

“…The conductivity of oxides can be improved by synthesizing oxide/carbon composites [194]. The supports of this kind of composite materials are widely used for Pt or other catalytic centers [194][195][196][197][198]. The utilization of supporting materials can affect the nanoparticle (NPs) morphology, dispersion, and create a support-metal interaction (SMSI) [199][200][201][202].…”

Section: Oxygen Reduction Reaction-orr and Carbon Supportsmentioning

confidence: 99%

“…This material was as conducting as the carbon black, ensuring, in this way, the efficiency of electron transfer between the catalyst center and the support. The SMSI effect between Pt NPs and support was improved on photo-deposited Pt NPs onto oxides with respect to Pt/TiO 2 -C prepared via a soft chemical route [194]. The SMSI effect can be easily visualized in the CO-stripping process, see Figure 32a, where one can observe that the photo-deposition (PD) favors the interaction between Pt and sp 2 domain of carbon support, whereas the carbonyl chemical route (CCR) favors the Pt-sp 3 interaction.…”

Section: Oxide and Oxide-carbon Compositesmentioning

confidence: 99%

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What Can We Learn in Electrocatalysis, from Nanoparticulated Precious and/or Non-Precious Catalytic Centers Interacting with Their Support?

2016

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This review is devoted to discussing the state of the art in the relevant aspects of the synthesis of novel precious and non-precious electrocatalysts. It covers the production of Pt-and Pd-based electrocatalysts synthesized by the carbonyl chemical route, the synthesis description for the preparation of the most catalytically active transition metal chalcogenides, then the employment of free-surfactants synthesis routes to produce non-precious electrocatalysts. A compilation of the best precious electrocatalysts to perform the hydrogen oxidation reaction (HOR) is described; a section is devoted to the synthesis and electrocatalytic evaluation of non-precious materials which can be used to perform the HOR in alkaline medium. Apropos the oxygen reduction reaction (ORR), the synthesis and modification of the supports is also discussed as well, aiming at describing the state of the art to improve kinetics of low temperature fuel cell reactions via the hybridization process of the catalytic center with a variety of carbon-based, and ceramic-carbon supports. Last, but not least, the review covers the experimental half-cells results in a micro-fuel cell platform obtained in our laboratory, and by other workers, analyzing the history of the first micro-fuel cell systems and their tailoring throughout the time bestowing to the design and operating conditions.

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Section: Oxide and Oxide-carbon Compositesmentioning

confidence: 87%

“…Our group reported Pt NPs supported by TiO 2 -C, and Y doped TiO 2 -C [194]. It was found that TiO 2 became more conducting after doping with Yttrium (Y:TiO 2 -C).…”

Section: Oxide and Oxide-carbon Compositesmentioning

confidence: 98%