Boosting the performance of formic acid microfluidic fuel cell: Oxygen annealing enhanced Pd@graphene electrocatalyst

Dawei Li; Hong Xu; Li Zhang; Dennis Y. C. Leung; Filipe Vilela; Huizhi Wang; Jin Xuan

doi:10.1016/j.ijhydene.2016.05.019

Boosting the performance of formic acid microfluidic fuel cell: Oxygen annealing enhanced Pd@graphene electrocatalyst

Dawei Li, Hong Xu, Li Zhang, Dennis Y. C. Leung, Filipe Vilela, Huizhi Wang, Jin Xuan

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

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Abstract

A new oxygen-annealing treatment for Pd supported on graphene was employed to enhance the electro-catalytic performance in formic acid microfluidic fuel cells. Experiments show that both the electro-oxidation reactivity and CO tolerance of the annealed catalyst are significantly improved. When testing the fuel cell, the maximum power density with annealed catalyst is 41% higher than the unannealed Pd@graphene catalyst, and 85% higher than Pd@Vulcan XC-72. This enhancement is attributed to the Pdsingle bondO bond formation during the oxygen annealing step, which induces greater CO electro-oxidation reactivity.

Original language	English
Pages (from-to)	10249–10254
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	41
Issue number	24
Early online date	21 May 2016
DOIs	https://doi.org/10.1016/j.ijhydene.2016.05.019
Publication status	Published - 29 Jun 2016

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title = "Boosting the performance of formic acid microfluidic fuel cell: Oxygen annealing enhanced Pd@graphene electrocatalyst",

abstract = "A new oxygen-annealing treatment for Pd supported on graphene was employed to enhance the electro-catalytic performance in formic acid microfluidic fuel cells. Experiments show that both the electro-oxidation reactivity and CO tolerance of the annealed catalyst are significantly improved. When testing the fuel cell, the maximum power density with annealed catalyst is 41% higher than the unannealed Pd@graphene catalyst, and 85% higher than Pd@Vulcan XC-72. This enhancement is attributed to the Pdsingle bondO bond formation during the oxygen annealing step, which induces greater CO electro-oxidation reactivity.",

author = "Dawei Li and Hong Xu and Li Zhang and Leung, {Dennis Y. C.} and Filipe Vilela and Huizhi Wang and Jin Xuan",

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Boosting the performance of formic acid microfluidic fuel cell : Oxygen annealing enhanced Pd@graphene electrocatalyst. / Li, Dawei; Xu, Hong; Zhang, Li; Leung, Dennis Y. C.; Vilela, Filipe; Wang, Huizhi; Xuan, Jin.

In: International Journal of Hydrogen Energy, Vol. 41, No. 24, 29.06.2016, p. 10249–10254.

Research output: Contribution to journal › Article › peer-review

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AU - Li, Dawei

AU - Xu, Hong

AU - Zhang, Li

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AU - Vilela, Filipe

AU - Wang, Huizhi

AU - Xuan, Jin

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AB - A new oxygen-annealing treatment for Pd supported on graphene was employed to enhance the electro-catalytic performance in formic acid microfluidic fuel cells. Experiments show that both the electro-oxidation reactivity and CO tolerance of the annealed catalyst are significantly improved. When testing the fuel cell, the maximum power density with annealed catalyst is 41% higher than the unannealed Pd@graphene catalyst, and 85% higher than Pd@Vulcan XC-72. This enhancement is attributed to the Pdsingle bondO bond formation during the oxygen annealing step, which induces greater CO electro-oxidation reactivity.

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