title: PdCuPt Nanocrystals with Multibranches for Enzyme-Free Glucose Detection.
abstract: By carefully controlling the synthesis condition, branched PtCu bimetallic templates were synthesized in aqueous solution. After the galvanic replacement reaction between PtCu templates and the Pt precursors, PdCuPt trimetallic nanocrystals with branched structures were obtained. Owing to the open structure and the optimized composition, the electrochemical experimental results reveal that the PdCuPt trimetallic nanocrystals possess high electrocatalytic activity, selectivity and stability for the oxidation of glucose in alkaline solution. In detail, a detection limit of 1.29 μM and a sensitivity of 378 μA/mM/cm(2) are achieved. The good electrocatalytic performance should be attributed to the unique branched nanostructure as well as the synergistic effect among metals. The superior catalytic properties suggest that these nanocrystals are promising for enzyme-free detection of glucose.
authors: The School of Mechanical and Materials Engineering, Washington State University , Pullman, Washington 99164, United States.
authors: Shaofang
authors: S
authors: Fu
authors: The School of Mechanical and Materials Engineering, Washington State University , Pullman, Washington 99164, United States.
authors: Chengzhou
authors: C
authors: Zhu
authors: The School of Mechanical and Materials Engineering, Washington State University , Pullman, Washington 99164, United States.
authors: Junhua
authors: J
authors: Song
authors: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99352, United States.
authors: Mark
authors: M
authors: Engelhard
authors: State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, People's Republic of China.
authors: Haibing
authors: H
authors: Xia
authors: The School of Mechanical and Materials Engineering, Washington State University , Pullman, Washington 99164, United States.
authors: Dan
authors: D
authors: Du
authors: The School of Mechanical and Materials Engineering, Washington State University , Pullman, Washington 99164, United States.|Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99352, United States.
authors: Yuehe
authors: Y
authors: Lin
keywords: alloys; branched nanocrystals; enzyme-free biosensors; galvanic replacement reaction; glucose detection