Journal
NANOSCALE ADVANCES
Volume 2, Issue 2, Pages 785-791Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9na00726a
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Funding
- National Key Research and Development Program of China [2017YFA0206500, 2017YFA0206801]
- National Basic Research Program of China [2015CB932301]
- National Natural Science Foundation of China [21671163, 21773190, 21905247, 21931009, 21721001]
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Designable bimetallic core-shell nanoparticles exhibit superb performance in many fields including industrial catalysis, energy conversion and chemical sensing, due to their outstanding properties associated with their tunable electronic structure. Herein, Au-Pd core-shell (AurichPd@AuPdrich) nanowires (NWs) were synthesized through a one-pot facile chemical reduction method in the presence of cetyltrimethyl ammonium bromide (CTAB) surfactant. The thickness of the Pd shell could be adjusted by directly controlling the Au/Pd feeding ratio while maintaining the nanowire morphology. The as-obtained Au75Pd25 core-shell NWs with a thin Pd-rich shell showed significantly enhanced activities towards the reduction of hydrogen peroxide with the sensitivity reaching 338 mu A cm(-2) mM(-1) and a linear range up to 10 mM. In sum, Pd shell thickness could be used to adjust the electronic structure, thereby optimizing the catalytic activity.
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