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Citrate-Capped Hybrid Au-TiO2 Nanomaterial for Facile and Enhanced Electrochemical Hydrazine Oxidation.


ABSTRACT: Effective and facile electrochemical oxidation of chemical fuels is pivotal for fuel cell applications. Herein, we report the electrocatalytic oxidation of hydrazine on a citrate-capped Au-TiO2-modified glassy carbon electrode, which follows two different oxidation paths. These two pathways of hydrazine oxidation are ascribed to occur on Au and the activated TiO2 surface of the Au-TiO2 hybrid electrocatalyst. This activation was achieved through molecular capping of the Au-TiO2 surface by citrate, which leads to favorable hydrazine oxidation with a lower Tafel slope compared to that of the clean surface of the respective materials, that is, Au and TiO2.

SUBMITTER: Roy N 

PROVIDER: S-EPMC6641191 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Citrate-Capped Hybrid Au-TiO<sub>2</sub> Nanomaterial for Facile and Enhanced Electrochemical Hydrazine Oxidation.

Roy Nitish N   Bhunia Kousik K   Terashima Chiaki C   Fujishima Akira A   Pradhan Debabrata D  

ACS omega 20170329 3


Effective and facile electrochemical oxidation of chemical fuels is pivotal for fuel cell applications. Herein, we report the electrocatalytic oxidation of hydrazine on a citrate-capped Au-TiO<sub>2</sub>-modified glassy carbon electrode, which follows two different oxidation paths. These two pathways of hydrazine oxidation are ascribed to occur on Au and the activated TiO<sub>2</sub> surface of the Au-TiO<sub>2</sub> hybrid electrocatalyst. This activation was achieved through molecular capping  ...[more]

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