出版日期：2014-11-20 00:00:00

著者：Chen, Cheng-Chuan; Lin, Cheng-Lan; Chen, Lin-Chi

單位：淡江大學化學工程與材料工程學系 Department of Bio-Industrial Mechatronics Engineering, National Taiwan University

出版者：Kidlington: Pergamon Press

著錄名稱、卷期、頁數：Electrochimica Acta 152, p.408-416

摘要：Palladium nanoparticles (nPd) are grown on six carbon nanomaterials with different functionalities by one-pot, high-pH polyol reduction of PdCl2. The nanomaterials include pristine multi-walled carbon nanotubes (pMWCNT), carboxylated MWCNT (cMWCNT), amine-modified MWCNT (nMWCNT), hydroxyl-modified MWCNT (oMWCNT), XC72 carbon black (XC72), and carboxylated graphene (cGraphene). The effects of the carbon functionality on Pd-catalyzed glucose oxidation reaction (GOR) in an alkaline medium are studied. From the experimental data of X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and transmission electron microscopy (TEM), it reveals that nPds with a particle size ranging from 4.5 nm to 7.4 nm are grown on carbon nanomaterials with a weight loading percentage from 11.1% to 18.6%. Cyclic voltammetry (CV), linear sweep voltammetry (LSV), Tafel analysis, and chronoamperomtry (CA) are used to compare the electrochemical active surface area (ECSA), GOR onset potential, GOR peak current density, Tafel slope, poisoning rate, and cycling stability between the six nPd/C electrocatalysts for GOR. It is found that nPd grown on a functionalized carbon nano-support had better GOR performance than that grown on pMWCNT. Compared to nPd/pMWCNT, nPd/cMWCNT shows a 6.2-fold higher peak current density (5.6 mA cm−2) and a 100 mV lower over-potential (-0.55 V vs. Hg/HgO) for GOR. Besides, the data are among the best for nPd-catalyzed GOR reported to date.

關鍵字：Glucose oxidation reaction (GOR);palladium nanoparticles (nPd);multi-walled carbon nanotubes (MWCNT);polyol reduction method;glucose fuel cells

語言：en_US

ISSN：0013-4686

期刊性質：國外

收錄於：SCI

通訊作者：Chen, Lin-Chi

審稿制度：是

國別：GBR

出版型式：電子版,紙本