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- W2912644961 abstract "To better platinum's (Pt’s) electro-catalytic activity for oxidizing methanol, nano-flowers structured Pt catalysts with controlled facet had been planted onto titanium dioxide nanotube array (TNA) bed via a pulse electrodepositing method in an acid electrolyte containing chloroplatinic acid (H2PtCl6). The facet of Pt nano-flowers can be tuned as (111) or (100) by adding sulfuric acid (H2SO4) or hydrochloric acid (HCl) respectively into the precursor. It has been discovered that the nano-flower structured Pt catalysts with (111) facet generates a current density peak of 243.16 mA·mg−1(~2 times that of Pt catalysts with (200) facets) for catalytic oxidizing methanol in electrolyte containing 1 M methanol and 0.5 M H2SO4. In addition, the concentration of sulfuric acid in electrolyte has an effect on electrode's morphology, its electro-catalytic capability and stability. The mechanism of sulfuric acid anion for bettering Pt’s electro-catalytic activity had been comparatively investigated by replacing H2SO4 as HCl in precursor." @default.
- W2912644961 created "2019-02-21" @default.
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- W2912644961 date "2019-07-01" @default.
- W2912644961 modified "2023-10-16" @default.
- W2912644961 title "Platinum nano-flowers with controlled facet planted in titanium dioxide nanotube arrays bed and their high electro-catalytic activity" @default.
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- W2912644961 doi "https://doi.org/10.1016/j.susmat.2019.e00093" @default.
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