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- W2937112278 abstract "Shape-controlled synthesis of platinum-based alloy nanocatalysts with well-designed size and structure is essential for developing highly efficient catalysts. Here, a biomolecule-based strategy for the synthesis of vine-tree-like PtRh nanowires (VT-PtRhNWs) using insulin amyloid fibrils (INSAFs) as sacrificial templates is presented. In this structure, the inner PtRh nanowires behave as the rigid ‘tree’ and the outer PtRh nanoparticles interconnects to form a spiral chain-like structure as the flexible ‘vine’. Owning to the limitation effect of biological template, both of nanoparticles and nanowires present a very small size of less than 2 nm, and thus leading to a large electrochemical active surface area of 79.20 m2/g. As a result, the as-prepared VT-PtRhNWs exhibit a much higher catalytic activity toward methanol oxidation compared with the commercial Pt/C catalyst, and also an improved CO tolerance, indicating a great potential as excellent electrocatalysts for fuel cells." @default.
- W2937112278 created "2019-04-25" @default.
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- W2937112278 date "2019-07-01" @default.
- W2937112278 modified "2023-10-16" @default.
- W2937112278 title "Insulin amyloid fibrils-templated rational self-assembly of vine-tree-like PtRh nanocatalysts for efficient methanol electrooxidation" @default.
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- W2937112278 doi "https://doi.org/10.1016/j.colsurfa.2019.04.039" @default.
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