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- W4367671924 abstract "Abstract Bimetallic CuPt alloyed nanoparticles were conveniently synthesized on biohydrogels and were capable of carrying out hydrogen release from ammonium borane hydrolysis. The biohydrogel consisted of bead-shaped alginate chains crosslinked by calcium ions, which were used as support material to synthesize and stabilize the bimetallic nanoparticles, employing adsorption and coreduction strategy steps. The as-prepared nanoparticles exhibited light absorption in the visible range (580 nm) resulting from the surface plasmon resonance (SPR) phenomenon ascribed to the presence of copper in the alloyed system. On the other hand, the presence of platinum atoms in these nanoalloys endows them with a notable catalytic performance toward ammonia borane hydrolysis as a hydrogen release reaction, reaching k r values from 0.32 x 10 -4 to 2.23 x 10 -4 mol L -1 min -1 as the Pt content increases. Finally, by taking advantage of the SPR light absorption shown by CuPt 1:1, it was demonstrated that these entities could be successfully employed as photocatalysts for the hydrogen generation reaction, boosting its activity by almost 2.06 times compared to its performance in dark conditions. This catalytic enhancement was mainly ascribed to the plasmonic-derived light-harvesting properties and the specimen's metallic composition." @default.
- W4367671924 created "2023-05-03" @default.
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- W4367671924 date "2023-05-02" @default.
- W4367671924 modified "2023-09-25" @default.
- W4367671924 title "Marrying plasmonic earth-abundant metals with catalytic metals for visible-light- promoted hydrogen generation on biobased materials" @default.
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- W4367671924 doi "https://doi.org/10.21203/rs.3.rs-2860908/v1" @default.
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