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Pt/carbon xerogel (CX) catalysts were synthesized by the multiple strong electrostatic adsorption (SEA) method. This method consists of the impregnation of a carbon support (here, a CX) by a solution containing hexachloroplatinic acid (H2PtCl6). The impregnation pH is precisely chosen to maximize the ion/support interactions. The Pt precursor solution can be re‐used so as to avoid Pt waste during...
Big and small: Chemically modifying platinum with calix[4]arene yields a highly stable anode catalyst that effectively suppresses the oxidation reduction reaction without altering the maximum activity for the hydrogen oxidation reaction (see picture, Pt blue, C gray, O red, S yellow). This behavior extends from long‐range‐ordered stepped single‐crystal surfaces to nanocatalysts.
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