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Herein, a rapid and straightforward coreduction aqueous approach was developed for preparation of support-free trimetallic Pt53Ru39Ni8 nanosponges with clean surface. Plenty of hydrogen bubbles were in situ formed via the oxidation and hydrolysis of the reductant (sodium borohydride), which served as the dynamic template in the fabrication of the porous sponge-like structures. The shape, size, crystal...
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