Trimetallic (Aurod-Pdshell-Ptcluster) Catalyst Used as Amperometric Hydrogen Peroxide Sensor

Biosensors

Chung-Chiun Liu¹  Hung-Lung Chou²  Wei-Nien Su²  John Rick³  Chun-Jern Pan³  Shou-I Cheng³  Bing-Joe Hwang³  Kuan-Jung Chen³  Chia-Hsin Wang⁴  Yaw-Wen Yang⁴ 

[1] Department of Chemical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA;Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan;Nanoelectrochemistry Laboratory, Department of Chemical Engineering,National Taiwan University of Science and Technology, Taipei 106, Taiwan;National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan;

关键词: trimetallic catalyst;    Au core-shell;    hydrogen peroxide sensing;    nanoparticles;    nanorods;   

DOI  :  10.3390/bios4040461

来源: DOAJ

【 摘 要 】

Bimetallic nanostructured core-shell structures are commonly used as catalysts in a wide variety of reactions. We surmised that the addition of an additional metal would potentially allow catalytic tailoring with the possibility of an increase in activity. Here atri-metallic catalytic structure, consisting of clustered catalytic Pt on the surface of a Pd shell supported on a rod shaped Au core was fabricated. The significance of the additional metallic component is shown by comparative electrochemically active surface area(ECSA) analysis results for the trimetallic Aurod-Pdshell-Ptcluster, bimetallic Aurod-Ptcluster and monometallic JM-Pt (used as a reference), which have respective ECSA values (cm2/mgPt) of 1883.0, 1371.7 and 879. The potential utility of the trimetallic catalysts was shown in a hydrogen peroxide sensing protocol, which showed the catalyst to have a sensitivity of604 ìA/mMcm2 within a linear range of 0.0013–6.191 mM.

【 授权许可】

Unknown