Add time:08/15/2019 Source:sciencedirect.com
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.
We also recommend Trading Suppliers and Manufacturers of Platinum dioxide (cas 1314-15-4). Pls Click Website Link as below: cas 1314-15-4 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View