Effect of Graphitic Content on Carbon Supported Catalyst Performance

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The effect of graphitic content on carbon supported platinum catalysts was investigated in order to investigate its influence on catalyst performance. Four catalysts of varying surface areas and graphitic content were analyzed using XPS, HREELS, and tested using RDE experiments. The catalysts were also heat treated at 150 C and 100%RH as means to uniformly age them. The heat treated samples were analyzed using the same methods to determine what changes had occurred due to this aging process. When compared to the BOL catalysts, heat treated catalysts displayed increased graphitic carbon and platinum metallic content, however they also showed depressed ... continued below

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845 - 852

Creation Information

Patel, A.; Artyushkova, K.; Atanassov, P.; Harvey, David; Dutta, M.; Colbow, V. et al. July 1, 2011.

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Description

The effect of graphitic content on carbon supported platinum catalysts was investigated in order to investigate its influence on catalyst performance. Four catalysts of varying surface areas and graphitic content were analyzed using XPS, HREELS, and tested using RDE experiments. The catalysts were also heat treated at 150 C and 100%RH as means to uniformly age them. The heat treated samples were analyzed using the same methods to determine what changes had occurred due to this aging process. When compared to the BOL catalysts, heat treated catalysts displayed increased graphitic carbon and platinum metallic content, however they also showed depressed catalytic activity. The primary cause is still under investigation, though it is believed to be related to loss of amorphous carbon content.

Physical Description

845 - 852

Notes

Requests to Kateryna Artyushkova

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  • Journal Name: ECS Transactions; Journal Volume: 41; Journal Issue: 1; Conference: 220th Meeting of the Electrochemical Society, Boston MA, October 9 - 14, 2011

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  • Report No.: DOE/E0000466-2
  • Grant Number: EE0000466
  • DOI: 10.1149/1.3635618 | External Link
  • Office of Scientific & Technical Information Report Number: 1039566
  • Archival Resource Key: ark:/67531/metadc845270

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  • July 1, 2011

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • July 22, 2016, 4:29 p.m.

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Patel, A.; Artyushkova, K.; Atanassov, P.; Harvey, David; Dutta, M.; Colbow, V. et al. Effect of Graphitic Content on Carbon Supported Catalyst Performance, article, July 1, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc845270/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.