title: Insulin amyloid fibrils: an excellent platform for controlled synthesis of ultrathin superlong platinum nanowires with high electrocatalytic activity.
abstract: Highly uniform single-crystal ultrathin Pt nanowires (UTPtNWs) with a diameter of ~1.8 nm and a superhigh aspect ratio of >10(4) were fabricated using insulin amyloid fibrils (INSAFs) as sacrificial templates. The use of INSAFs to build the UTPtNWs allowed for the preferential exposure of low-energy crystal facets that would be highly advantageous for the methanol oxidation reaction. The UTPtNWs displayed a large electrochemical active surface area of 71.34 m(2)/g, which is much higher than that of a commercial Pt/C catalyst. The UTPtNWs also maintained excellent electrochemical durability under repeated cyclic voltammetry scans. Because of its exciting high electrochemical activity, UTPtNWs is a promising material for the design of next-generation electrocatalysts and would also be useful in sensing, biomedical, and other electrochemical applications.
authors: Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, P. R. China.
authors: Longgai
authors: L
authors: Zhang
authors: Na
authors: N
authors: Li
authors: Faming
authors: F
authors: Gao
authors: Li
authors: L
authors: Hou
authors: Ziming
authors: Z
authors: Xu
mesh_terms: D000682:Amyloid / Q000737:chemistry*; D002384:Catalysis; D055664:Electrochemical Techniques; D007328:Insulin / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D053770:Nanowires; D010984:Platinum / Q000737:chemistry*
chemical_list: D000682:Amyloid; D007328:Insulin; D010984:Platinum